Inter-Tel IMX 256, GMX 256 User Guide

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INT

EGR

lMWGMX256

INSTALLATION AND FIELD MAINTENANCE MANUAL

Part No. 440.8074

Issue 1, November 1994

lMwGMX256

INSTALLATION AND FIELD

MAINTENANCE MANUAL

NOTICE

IMX 81 GMX COMBINED INTO ONE MANUAL

With the new 1995 North American Numbering Plan software releases, the tical except for the station instruments that can be installed on them. To provide better service, condense reference materials, streamline training, and facilitate technical support, the installation manuals for the two systems have been combined into one generic manual.

When using this combined manual to help sell, install, or service a particular system, be aware that not all of the station instruments described in this manual are available on both products. Listed below are the station instruments that can be installed on each product.

IMX 256 Station Instruments

l Digital

l IMX AIM

lMX (non-AIM) Keysets

l Attendant Computer Consoles

Digital

0 IMX DSS/BLF 0

l Enhanced Single-Line Sets

0 IMX

Single-Line DTMF Sets

Keyseta

Keysets

DSS/BLF

Single-Line Instruments

(including

Keysets

Units

(including “dual-circuit”

Units

PCDPMs 62 MDPMs)

keysets)

(ESLSs)

(SLls)

GMX-256 Station Instruments

0 Inter-Tel/DVK Keysets 0 Gh42C Keysets 0

l Attendant Computer Consoles

0 Inter-Tel/DVK DSS/BLF 0 GhIX DSS/BLF 0

GMX Single-Line Instruments

GXSLIs

Single-Line DTMF Sets

Ih4X

Keysets

DSS/BLF

256 and GMX-256 products are iden-

Units

(SLIs)

Part No. 440.8074 Issue 1, November 1994

Part Number

440.8074

INTEG

RATED

lMwGMX256

INSTALLATION AND

FIELD MAINTENANCE

MANUAL

Issue 1, November

1994

@Inter-Tel Integrated Systems, inc. 1994

Printed in USA

IMX

256 ISSUE 2 - INDEX OF NEW FEATURES

For those individuals who are already familiar with the Issue 1 manuals for the

lMX

256 and GMX-256 Systems, the following new items are documented in this combination manual. For complete information on each item, refer to the page numbers following the brief explanation. Also, throughout the manual, %hange bars” like the one at the right have been placed in the margins to indicate any new or revised information since the original manuals.

IMX

And GMX Combined Into One Manual

with

the new 1995 North American Numbering Plan software releases, the IMX 256 and GMX-256 products are

identical except for the station instruments that can be installed on them. To provide better service, condense reference materials, streamline training, and facilitate technical support, the installation manuals for the two systems have been combined into one generic manual. When using this combined manual to help sell, install, or service a particular system, be aware that not all of the station instruments described in this manual are available on both products. See page 2-2 for a list of the station instruments that can be installed on each product.

North American Numbering Plan

The growth of telecommunications services has created an increasing demand for more telephone

meet the demand,

Bellcore

(NANP)

numbers.

has prepared a long-range North American Numbering Plan (NANP) to provide addi-

tional telephone numbers. The plan expands the capacity of the current numbering system by making area and

office codes interchangeable. That is, numbering patterns formerly reserved for office codes can be used as new area codes and office codes within existing area codes can have the same pattern as other area codes. This version of software supports the new numbering plan. See pages

Home And Local Area Codes

4-28

and 5-90.

In many areas, the telephone company has created call-cost arrangements that refer to “home” and “local” area codes. The home area code is the area code within which the system resides. The local area codes are additional area codes that, when called, use the local or toll local call-cost rate instead of the long distance rate. Up to three local area codes can be programmed and then extended within toll restriction progxamming to provide proper call

costing. See pages 4-29 and 5-171.

Loop Start

‘Ikunk

Glare Protection

During a “glare” connection, the software now allows the incoming call to remain connected, while still protecting against possible toll fraud. See pages 2-14 and

Station Exchange

5-68.

This programmable station feature allows a station user to exchange the extension numbers of two station circuits. This swaps the database and user programmed features of the extension numbers between two station circuits without the need for database programming.The circuit number of the station locations are unchanged, but the extension numbers are changed. See pages 4-99 and 5-31.

Digital Cards, Diil

Keysets,

and

Diiti DSWBLF

Units

The IMX 256 System can now support the digital station instruments originally designed for the Inter-Tel Axxess

System. See pages

3-62 to

3-70,3-90,3-91,4-21,4-40,4-50,5-24,547,5-135,6-3,7-1,

2-2,2-g, 2-12,2-13,2-21

2-27,2-33,2-34,2-44,3-7,3-22,3-28,3-29,347,3-48,

and 7-3.

All digital keysets utilize DSP shared resources for speakerphones, and Executive Digital Keysets have enhanced

displays. See pages 2-22,440, and 4-41. APC Data Port Module (PCDPM) must be installed on digital keysets to provide the secondary voice path needed

for the

Module (PCDPM) and a Modem Data Port module (MDPM) installed. See pages

Feature And Speed-Dial Keys On

OIWA

feature. See pages

2-23,3-66,

and 4-61.

customer-provided, modem-equipped data device may be attached to any digital keyset with a PC Data

DSWBLF

2-23,3-70,

Units

and 4-101.

Port

DSS/BLF Units can have feature keys or system speed-dial keys programmed in their keymaps. See pages 4-50,

4-87, and 5-50.

Page v

INDEX OF NEW FEATURES (continued)

Keyset

“Hot” Dial Pad Keys

There is a system-wide option that, if enabled, allows keyset users to dial line access codes and feature codes without lifting the handset or pressing the SPKR or SPCL key. This programmable feature is called “hot dial pad” to

indicate that the dial pad keys are always activated. See pages

Private Intercom Call Override

If a keyset station has the Private Intercom Override feature enabled, the user can place a ing l or # when calling a keyset station that has handsfree mode disabled. See pages

44,4-42,

and 5-68.

handsfree

4-56,5-30,

call by press-

and 5-52.

%ilent” u

When

Toll

Sew&y Feat=

The

Weekly Toll Limits:

cified types of toll calls. The feature can monitor 7- and calls. Alarm messages have been added for toll limit management. See pages

4-1X2,4-125,5-97,

Inter-Tel Enhanced DISA

Tone Selection

setting the ring tone on a keyset, the keyset user can enter 0 to disable ring tones. See page 4-48.

Set

Extended software package now includes the following Toll Security features:

When enabled, the weekly toll limit feature keeps track of the accumulated call cost for spe-

lOdigit

toll calls and/or operator-assisted/international

4-10,4-30,4-62,4-63,4-83,

and 6-8.

Services: The weekly toll limit feature can only be enabled by Inter-Tel Services. See page 6-41.

Security

Codes: DISA security codes can be 4-7 digits long. ADISA caller will have only three opportunities to enter a valid security code. If the caller fails three times, the failure will generate a system alarm and that trunk will be inoperable for five minutes. See pages

DISA Toll Restriction:

stations (except LCR-Only). See pages

SMDR Blocked DISA

calls to appear in the Sh4DR report. See pages

DISA And Hunt Group

DISAcall

information has been added to the System Summary report and a new Hunt Croup option has been added

to the Summary Report. See pages

End-Of-Dialing Digit Suppression

Display and Redial: A system

DISA lines can be given day and/or night mode toll restrictions like those for individual

4-38,5-106,5-111,

Calls

Option:

A programming flag has been added to SMDR that allows blocked DISA

4-38,4-123,

Information In

SMDA Summary Reports

4-38,4-115,4-118,

programmin g flag allows the programmer to specify whether all dialed digits or

4-38,5-111,5-115,

and 5-116.

and 4-124.

and 5-140.

and 6-8.

just the digits that make up the valid call are displayed and stored in the redial buffer. If desired, the “extra” digits

used for dial-up banking machine, voice mail, automated attendant, or other purposes

canbe

suppressed. Suppressing the extra digits prevents entries, such as PIN numbers and other codes, from being displayed when they are dialed. See pages 4-93 and 5-69.

SMDRReportsz

A programming flag has been added to the

SMDRreport

programming prompts that allows you

to specify whether all dialed digits or just the digits that make up the valid call appear in the SMDR report. See

pages 4-123 and 5-142.

Account Code Enhancements

LCR

Toll Forced Account

LCR-Only toll restriction in day

Code: Forced account codes for toll calls only can be programmed for stations with

und

night modes. When this account code type is enabled, the user only has to

enter an account code if the system detects that a toll call has been dialed 5-32, and 5-55.

Validated Forced Account

Codes: Forced account codes can be validated or non-validated. See page 4=-66,5-32,

5-33, and 5-55.

Page vi

whenLCR

is used. See pages

4-33,4-66,

INDEX OF NEW FEATURES (continued)

Voice Mail/Computer Enhancements

Do-Not-Disturb Breakthrough:

Normally, calls to a station through

DIM,

the automated attendant, or a voice

’

computer are not blocked by placing the station in do-notdisturb. If desired, individual stations can be set to pre-

vent these calls from breaking through do-not-disturb. See pages

Voice Mail/Computer Hunt

designated as a voice computer hunt group. See pages

Automated Attendant Hunt Groups: Voice computer hunt groups can be designated as automated attendant

Groups In All

Software Packages:

4-16,4-21,

4-14,4-21,4-38,5-30,

and 5-52.

In any software package, any hunt group can be

S-61, and 5-62.

hunt groups. See pages 4-21 and 5-63.

Dial RuleS: Recall Destination:

Voice mail/computer hunt groups can be assigned dial rules. See pages 4-21 and 5-63.

Avoicc

mail/computer hunt group can have an assigned recall destination. See pages 4-21

and 5-64.

Overflow/Announcement

Stations:

Voice mail/computer hunt groups can serve as overflow/announcement sta-

tions. See page 5-66.

DTMF Feedback Tones:

-“feedback”

The progress tones that are normally sent to a voice computer can be replaced with

tones that determine call status. See pages

4-21,5-31,

and 5-52. If feedback tones are enabled,

the “extended” set of feedback tones can also be enabled in system-wide programming. See pages 5-67 and 5-68.

Allow Cross-Tenant Voice Mail/Computer

‘Itaffic:

The Programmer can determine whether voice mail units

and voice mail computers will be allowed to place intercom calls, forward intercom calls, or transfer intercom or

outside calls to stations that are in different tenant groups. See pages 4-21 and

Version Feature

Code: When entered at a voice computer port this feature code generates a four-digit IYIMF

5-67.

code that indicates the last four digits of the software part number. It is used by voice processing software to ensure

that the

KSU

software is compatible with the voice pro&sing features. See page 4-7.

Remote Hunt Group Remove/Replace

The Hunt Group Remove/Replace feature can be controlled from the attendant’s station using the Remote Hunt

Group Replace feature code. See pages

Hunt Group Enhancements

There is a system option that can be enabled to send

4-144-19,

and 4-111.

uZZ

unanswered hunt group calls first to the announcement

station and then to the overflow station. See pages 4-17 and 5-68. If a station that receives a recalling hunt group call chooses to transfer the call back to the hunt group, the call

retains its original queue position in the hunt group. Also, calls that go to the announcement and overflow stations do not lose their places in the queue. While the call is at a playback device announcement or overflow station (except voice compufer overflow/announcement stations) it continues to circulate through the hunt group. If a hunt group member picks up the call, it is pulled back from a playback device overflow/announcement station and connected to the hunt group station. See pages 4-18 and 4-19.

Station Off-Hook Alarm

The STXlTON OFF HOOK alarm now indicates the station that is off hook. Also, the alarm clears automatically when the station user hangs up. See pages

Equal Access

The system supports the

“1OlXXXX”

Numbers Supported

“lo-

modified to support equal access dialing. See pages

Password Required

4-1X2,4-125,

and 6-8.

and “1OXXX” equal access numbers. Toll restriction SCOS 7 has also been

4-27,4-B,

and 5-88, and 5-113.

The password prompt will always appear when a programmer logs in to a programming session. In the default state

there is no database programming password and pressing

RETURN will allow access to the database. See page

5-10.

INTER-TELPRACTICES lMX/GMX

256

INS’IXLJATION &

MAINTENANCE

TABLE OF CONTENTS

Issue 1, November

1994

CONTENTS

INDEXOFNEW FEATURES

TABLE OF CONTENTS

LIST OF FIGURES

FCC REGULATIONS

.....................................................

...................................................

SAFETY REGULATIONS

LIMITED WARRANTY

OVERVIEiV

...........................................................

............................................

.................................................

...............................................

.................................................

1. Introduction ........................................................

2. System Capacities ....................................................

3. Software Packages ...................................................

4. Hardware Summary

5. Installation, Programming, And Maintenance Summary

..................................................

......................

6. Features Summary ...................................................

SPECIFICATIONS

.....................................................

1. Introduction ........................................................

2. Cabling And The Main Distribution Frame

(MDF)

..........................

3. Equipment Cabinet ...................................................

4. Station Instruments

5. Additional System Equipment

...................................................

..........................................

PAGE

...

Ml1

xvii

xix

l-l

l-l 1-2 l-3 1-3 1-4

2-l

2-2 2-4 2-6 2-21 2-31

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Introduction ........................................................

2. System Installation Outline ............................................

3. Pre-Installation Checklist

..............................................

4. Station Cabling ......................................................

5. Assembling The Main Distribution Frame

6. Equipment Cabinet Installation

7. Station Installation

SMDR/SMDA

...................................................

Output Device Installation

.........................................

9. External Paging Equipment Installation

10. External Music Source Installation

11. Preventative Maintenance

12. Post-Installation Checklist

..............................................

.............................................

.......................................

(MDF)

Backboard

................................. 3-98

...................................

................. 3-9

3-1 3-2

3-2 3-3 3-6

3-35

3-62

3-98

3-99

3-99 3-100

Page ix

TXBLE

Issue 1, November 1994

OF CONTENT!3

lMX/GMX 2%

INSTALLATION & MAJNTENANCE

INTER-TELPRACTIcEs

CONTENTS

FEATURES

1. Introduction

2. Accessing The Features

3. System Organization

4. Tnmk Features

5. Station Instruments

6. User-Programmable Feature Keys

7. Automatic Call Access (Keysets Only)

8. Music-On-Hold And Background Music

9. Signals And Tones

10. Intercom Galls

11. Inter-Station Messages

12. Off-Hook Voice Announce (OHVA)

13. Outside Galls

14. Placing Calls On Hold

15. Call Waiting

16. Call Transfer

17. Reverse Transfer And Group Call Pick-Up

18. Call Privacy And Privacy Release

19. Barge (Keysets Only)

20. Conference Galls

21. System Forwarding

............................................................

........................................................

...............................................

..................................................

......................................................

...................................................

.......................................

...................................

..................................

...................................................

.......................................................

................................................

.....................................

........................................................

................................................

........................................................

.................................

.......................................

.................................................

.....................................................

...................................................

22. Call Forwarding .....................................................

23. Speed Dialing

24. Optional System Directory

25. House Phone

.......................................................

Intercom And Outside (Keysets Only)

...........

........................................................

26. Redialing ...........................................................

27. Paging

28. Remove From Paging

29. Do-Not-Disturb

30. Cancel Miscellaneous Operations

31. Hookflash

32. Reminder Messages (Keysets Only)

33. Optional Station Exchange Feature

34. Optional Data Device Attachments (Keysets Only)

35. Attendant Features

36. Record Keeping And Maintenance Features

.............................................................

.................................................

......................................................

........................................

..........................................................

......................................

..........................

...................................................

...............................

PAGE

4-l

4-4 4-4 4-12 4-24 4-40 4-51 4-52 4-53

4-54

4-55

4-58 4-61 4-62 4-67 4-69

4-70 4-73 4-74 4-75

4-76

4-79 4-82 4-85 4-90

4-92

4-93

4-94 4-94

4-95 4-97 4-97 4-98 4-99 4-101 4-103

4-114

‘3,

.“‘:

Page x

lNTER-TELPRACTIcEs IMX/GMX

256

IN-‘l-ION

& MAINTENANCE

TABLE OF CONTENTS

Issue 1, November 1994

CONTENTS

PROGRAMMING

1. Introduction

2. System Set-Up For Programming

3. Session Timer And Screen Saver

4. Microsoft Windows

5. How To Use The Programming Windows

6. Applications Menu

Defauli

Values

8. Station Programming

9. Station Programming

10. System-Wide Features

11. Toll Restriction

12. Least-Cost Routing @CR)

13. Trunk Programming

14. Attendants

15. Station Message Detail

16. Service

.............................................................

......................................................

........................................................

.......................................

........................................

..................................................

.................................

...................................................

.......................................................

Individual Station Information

Batch Programming Options

................................................

......................................................

.............................................

..................................................

..........................................................

................................................

......................

.......................

PAGE

5-l

5-3 5-3

5-11 5-11

5-12 5-15 5-24 5-25 5-44 5-54 5-88

5-98 5-103 5-132

5-137 5-145

TROUBLESHOOTING

1. Introduction

........................................................

2. Troubleshooting Checklist

3. Light-Emitting Diode (LED) Indications

4. Alarm Messages And Field Service Diagnostics

5. Troubleshooting Charts

6. Customer Support

7. Defective Unit Return Policy

REPLACEMENT PARTS

1. Introduction

........................................................

2. Ordering Procedure

3. Replacement Parts List

4. Recommended Spare Parts

.................................................

.............................................

..................................

............................

................................................

....................................................

...........................................

................................................

...................................................

................................................

.............................................

APPENDIX A- GX STATION INSTRUMENTS

1. Overview.

2. Specifications

3. Installation

4. Features

5. Programming

..........................................................

.......................................................

.........................................................

............................................................

.......................................................

...........................

6-l 6-l 6-l 6-l 6-8 6-12

6-41 6-41

7-l 7-l

7-1

A-l

A-l A-l A-4 A-10 A-10

Page xi

TABLE

Issue 1, November

OF CONTENTS

2294 IMX7GM.X

INTER-TELPRACTICES

256 INSTALLATION & MAINTENANCE

comms

APPENDIX B - GMX STATION INSTRUMENTS

1. Overview

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*............*.......

Features

5. Programming

INDEX

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..;.............................................................

. . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

PAGE

B-l

B-l B-l B-5

B-10 B-10

I-l

‘I-%

)

Page xii

lNTEx-TELPRAcTIcEs LIST OFFIGURJS IM.X/GMX 256INS‘E4LLATION &

MAINTENANCE Issue 1, November

1994

iWMBER

SPECIFICATIONS

Figure 2-l. Figure 2-2. Figure 2-3. Figure 2-4. Figure

2-5,

Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. Figure 2-12. Figure 2-13.

Voice Channel Allocation Digital AC Transformer Requirements Executive Digital Keyset (also called Executive Digital Terminal)

Standard Digital Keyset (also called Standard Digital Terminal)

IMX 24-Line Keyset

IMX 24-Line AIM Keyset IMX

1ZLine Keyset

IMX

12-Line

IMX 8-Line Keyset IMX 8-Line AIM Keyset

Inter-Tel/DVK 24-Line Keyset

Inter-Tel/DVK

Inter-Tel/DVK 8-Line Keyset

LIST OF

........................................

AIM

Keyset

.........................................

1ZLine

Keyset

FIG-URIZS

TlTLE

....................................

.........................

......

....................................

.....................................

................................

.................................

....

PAGE

2-7 2-24

2-33 2-34 2-35 2-36 2-37 2-38 2-39

2-40 2-41 2-42

2-43

Figure 2-14. Figure 2-15. Figure 2-16. Figure 2-17. Figure 2-18.

Digital Direct Station Selection/Busy Lamp Field (DSS/BLF) Unit

IMXDSS/BLFUnit Inter-Tel/DVK DSS/BLF Unit

Enhanced Single-Line Set (ESLS) Single-Line Instrument (SLI)

INSTALLATION

Figure 3-l. Figure 3-2.

Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6. Figure 3-7. Figure 3-8. Figure 3-9.

Figure 3-10.

Figure 3-11.

Digital Keyset Modular Jack Assembly Wiring Analog Station Modular Jack Assembly Wiring Sample MDF Block Layout And Cable Assignments Example Of Ferrite Bead Installation

LGC/LSC Block Cable Terminations (Method A) LGC/LSC Block Cable Terminations (Method B)

IDC Block Cable Terminations EMC Block Cable Terminations

Modular Jack Assembly Wiring For Tl Spans

........................................

.................................

.............................

.................................

...........................

................................

...............................

Span Terminations From RJ48C Jacks

.......................

Span Terminations From RJ-Type Blocks

...................

...............

.................

....................

.....................

...

2-44

2-45

2-46

2-47 2-48

3-7 3-8 3-10 3-12 3-13 3-14 3-15 3-16 3-18 3-18 3-19

Figure 3-12.

Figure 3-13.

Figure 3-14.

Using The Tl Card’s Optional DB15 Connector

..................

Digital KSC Block Cable Terminations For Keysets Analog KSC Block Cable Terminations

Page xiii

.........................

...............

3-20 3-22

3-23

LIST

OFFIGURES

Issue 1, November

1994

lMX/GMX

256

INS-TION

INTER-TELPRACTICES

MAINTENANCE

h”UMBER

Figure 3-15. Figure 3-16.

Figure 3-17. Figure Figure 3-19. Figure 3-20. Figure 3-21. Figure 3-22. Figure 3-23. Figure 3-24. Figure 3-25.

Figure 3-26. Figure 3-27. Figure

Figure 3-29.

Figure 3-30.

Figure 3-31.

3-18.

3-28.

TITLE

Installing &Line IMX AIM Keysets Two To A Circuit KSC-D Block Cable Terminations For Dual-Circuit Keysets

SLC Block Cable Terminations

IDC Block Cable Terminations

................................

Station Cable Terminations On The Station Block RCPU Card Cable Terminations

...............................

Modular Jack Assembly Wiring For Optional Tl Alarm Relays

Connecting Two Tl Cards Together

.............................

Power Cable Connectors On The Telecom Motherboard

Connecting The Power Cable To The Telecom Motherboard Cable Connections To The Power Supply Chassis Power Supply Module Installation Equipment Cabinet Grounding

.............................

................................

Power Supply Connector Pinouts And Voltage Test Point Locations RCPU Card

Digital Keyset Card (DKSC)

Keyset Card (KSC Or KSC-D)

...............................................

..................................

................................

.............

.........

.................

......

............

.........

.................

...

PAGE

3-24 3-25 3-26

3-27 3-28 3-31 3-33

3-34 3-36 3-37

3-38 3-40 3-41 3-43 3-46 3-48 3-50

:+,

Figure

3-32.

Figure 3-33.

Figure 3-34. Figure 3-35. Figure 3-36. Figure 3-37.

Single-Line Card (SLC) Inward Dialing Card (IDC)

Loop/Ground Start Card (LGC)

Loop Start Card E&M Card (EMC)

TlC

Card

(TlC)

(LX)

..........................................

...........................................

Standard Digital Keyset LCD Installation.

Digital Keyset Self-Test Key Matrix

Digital PC Data Port Module (PCDPM) Installation Sample Digital PCDPM Cable Connections

Figure Figure Figure Figure Figure 3-38. 3-39. 3-40. 3-41. 3-42. Figure 3-43.

Figure 3-44. Figure 3-45.

Figure

3-46. Figure 3-47. Figure 3-48. Figure 3-49. Figure 3-50.

Digital Modem Data Port Module (MDPM) Installation IMX 24/12-Line Keyset LCD Installation Bottom Of 8-Line Dual-Circuit IMX AIM Keyset

IMX Keyset Data Port Module Installation

IMX Keyset Inter-Tel/DVK

LRA

24Line

Set-Up

Inter-Tel/DVK 12/8-Line Keyset “Small” LCD Installation

Inter-Tel/DVK Data Port Module Installation

Inter-Tel/DVK

LRA

Set-Up

.....................................

...................................

...............................

......................................

.......................

............................

...............

......................

............

.......................

.................

......................

....................................

Keyset “Large” LCD Installation

...........

.........

.....................

..................................

3-52 3-53

3-55

3-56 3-58 3-60 3-63 3-65 3-68

3-69 3-70 3-72 3-76

3-79 3-80 3-82

3-84

3-88

3-89

-2

,‘,

Page xiv

LIST OFFIGURES

Issue 1. November 1994

NUMBER

Figure 3-51. Back Of Digital DSS/BLF Unit

TITLE

........ .......................

Figure 3-52. Inter-Tel/DVK DSS/BLF Unit Control Board Figure 3-53. Figure 3-54. Bottom Of ESLS

FEATURES

Figure 4-l. Figure 4-2.- Figure 4-3. Figure 4-4. Figure 4-5. SMDR Report Format

PROGRAMMING

Figure 5-1. Figure 5-2. Figure 5-3. Figure 5-4.

Figure 5-5. Figure 5-6. Figure 5-7. Figure 5-8. Figure 5-9. Figure 5-10. Figure 5-11.

Figure 5-12. Figure 5-13.

Figure 5-14. Figure 5-15. Figure 5-16. Figure 5-17. Figure 5-18. Figure 5-19. Figure 5-20. Figure 5-21. Figure 5-22.

Figure 5-23. Figure 5-24.

Figure 5-25.

SLI Control Board

Span Applications SMDA Account Code Report Format SMDA Summary Report Format SMDA Detailed Report Format

................. .........................

..............

........

.............................

...............................

...........................

..........

...............................

.......................................

Applications And Programming

Customized Programming Report Samples

............ ................

......................

Sample Board-To-Voice Bus Mapping Report

Individual Station Programming (STN)

Key Assignments (KEY)

.....................................

Ring Zone Programming (ZONE) Station Features (SFEA)

Account Codes (ACCI’)

.....................................

........ ........ .....................

.........................

....... ......................

Do-Not-Disturb And Reminder Messages (MESG)

Extensions, Usernames, And Feature Codes (EXT) Hunt Groups (HUNT)

Misc. System-Wide Information (MISC) Page Zones (PAGE) Relays @LAY) System Forwarding Paths (SFWD) System Speed Dial (SSPD) System Timer (TIMR)

Tenant Groups (TNT)

Carriers And Allowed Long Distance (ALT)

.......................................

........................

.................................. .......

............................................

.............................

...................................

.......................................

.....................

Area/Office Code Restriction User Groups (AREA)

Station Class Of Service/LCR Advances (SCOS)

Toll Security (TOLL)

Least-Cost Routing (LCR) Individual Trunk

Trunk Groups, Did Groups &

............ .........

........ ...........................

(INDT)

.....................................

Ring-IdAnswer

....................

................

...............

.................

..................

Patterns (TRNK)

.....

PAGE

3-91 3-94 3-96 3-97

4-36

4-117

4-118 4-120 4-124

5-124

5-156 5-173 5-174

5-177

5-188 5-189

5-190 5-195 5-197 5-202 5-203 5-204 5-204 5-205 5-206

5-207

5-210 5-211 5-212 5-213 5-216 5-217 5-223 5-224

Page xv

LEST

OFFIGURES

Issue 1, November 1994

NUMBER TITLE PAGE

lMX/GMX

256

INSTALL.A~ON &

lNTER-TELPRACTIcEs

MAINTENANCE

Figure 5-26.

Figure S-27. Attendants- Alias Programming (ALSS)

Figure 5-28. Attendants Figure 5-29. Call Cost (COST) Figure S-30. SMDA (SMDA) Figure 5-31. SMDR (SMDR) Figure S-32. Error Reports (ERR) Figure 5-33. Passwords (PASS) Figure 5-34. Serial Port Configuration (PORT) Figure 5-35.

Programming

(Tl)

....................................... 5-227

DSWBLF Units (DSS)

..........................................

...........................................

............................................

........................................ 5-233

..........................................

System Configuration (CONF)

.......................

...........................

..............................

................................

TROUBLESHOOTING

Figure 6-1. Light-Emitting Diode (LED) Indications

Figure 6-2. Figure 6-3. CO Trunk Troubleshooting Chart

Figure 6-4. Feature Troubleshooting Chart

Figure 6-5. Keyset Troubleshooting Chart

System Troubleshooting Chart

................................

.................................

..............................

Figure 6-6. Single-Line Set Troubleshooting Chart

Figure 6-7. DSS/BLF Unit Troubleshooting Chart

........................

..........................

5-228 5-229 5-230 5-231 5-232

5-233

5-234

5-235

6-3 6-14 6-18

6-24 6-30

6-36 6-39

REPLACEMENTPARTS

Figure 7-l.

Replacement Parts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7-2. Recommended Spare Parts

APPENDIX A

Figure A-l.

Figure A-2.

Figure A-3.

Figure A-4. Key Assignments (KEY)

GX 24-Line Keyset GX Keyset Bottom

......................................... A-3

......................................... A-5

GX DSS/BLF Unit Bottom

.....................................

APPENDIX B

Figure B-l.

Figure B-2. Figure B-3. Figure B-4. Figure B-5.

GMX 24-Line Keyset GMX

1ZLine Keyset

GMX 24-Line Keyset Data Port Module Installation GMX DSS/BLF Unit Bottom Key Assignments (KEY)

....................................... B-3

....................................... B-4

.....................................

. . . . . . . . . . . .

7-l

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

...................................

A-9

A-11

............... B-7

................................. B-9

B-11

Page xvi

lNTER-TEJaPRAcTIcES IMX/GMX 256 lNSTAlLLATlON &

FCC REGIJIAI’IONS

MAINTENANCE

FCC REGULATIONS

Issue 1,

November 1994

IMPORTANT:

This equipment complies with Part 68 of FCC rules. On the back of the equipment cabinet is a label that contains, among other information, the FCC registration number and ringer equivalence number

(BEN)

for this equipment. Customers connecting this equipment to the telephone network shall, before such connection is made, give notice to the tele-

phone company of the particular line(s) to which such connection is to be made, and shall provide the telephone company with the following information:

Complies with Part 68 of FCC rules

FCC registration number:

MF-E (for MF-rated systems) or

61845KF-E

Quantities and USOC numbers of required inter-

face jacks (see chart on next page)

Sequence in which trunks are to be connected

Binger

der code

chart on next page)

NOTE: The tity of devices which may be connected to the telephone line. Excessive RENs on the telephone

line may result in the devices not ringing in re-

sponse to an incoming call. In most, but not all

areas, the sum of the RENs should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total RENs, contact the telephone company to determine the maximum ing area.

(for KF-rated systems)

equivalence number

(WC),

as applicable, by position (see

FEN

is used to determine the quan-

BE2USA40751-

BE2USA-

(BEN)

or service or-

BEN

for the call-

tion to party line service is subject to state

(Contact the state public utility commission, public service commission, or corporation commission for information.)

If this equipment causes harm to the telephone network, the telephone company will notify the customer in advance that service may be temporarily discontinued. But if advance notice is not practical, the telephone company will notify the customer as soon as possible. Also, the customer will be advised of the right to file a complaint with the FCC, ifneces-

sary.

The telephone company may make changes in its fa-

cilities, equipment, operations, or procedures which may affect the operation of this equipment. If so, the customer shall be given advance notice so that any necessary modifications can be made in order to maintain uninterrupted service.

If trouble is experienced with this equipment, contact a local authorized factory service representative

for repairs and/or warranty information. The cus-

tomer, users, and unauthorized technicians should

not repair, make adjustments to, or attempt to service this equipment in any way.

In the event of trouble with the telephone line(s), this

equipment must be disconnected from the telephone

line(s). If trouble ceases, the equipment must be repaired by an authorized factory service representative. If the trouble continues to occur with the

equipment disconnected, the telephone company

should be notified that they have a problem. If this is

the case, repairs or adjustments made by the telephone company will be made at their expense.

tarif%.

Facility interface code

chart on next page)

The telephone company should also be given notice upon final disconnection of this equipment from the

particular line(s). It is also the responsibility of the customer to provide

the telephone company with registration numbers of any other devices which are configured for connection to the telephone network.

This equipment cannot be used on public coin service provided by the telephone company. Connec-

(FIG)

by position (see

Page xvii

Allowing this equipment to be operated in such a

manner as to not provide proper answer supervision

signaling is in violation of Part 68 of FCC rules. This

equipment returns answer supervision signals to the

public telephone network when: answered by the

called station, answered by the attendant, routed to a

recorded announcement that can be administered by

the equipment user, and routed to a dial prompt. This

equipment also returns answer supervision on all

DID calls forwarded back to the public telephone network. Permissible exceptions are: a call is unanswered, busy tone is received, and reorder tone is received.

FCC REGULATIONS

Issue 1, November

1994

IM.X/GMX 256

INSTALLATION & MAINTENANCE

IIUTER-TELPRACTICES

* Available with MF-rated systems only. According to FCC regulations, tar%& do not permit the use of ground-

start facilities with RF-rated systems.

* *

When using Tl facilities to provide DID service, do not use the DID facility interface code (FIG) as listed above; instead, provide the telephone company with DID answer supervision code

service.

c**

Also interfaces with Class A and B.

“AS.2”

and the FIC for the requested

This equipment does not currently comply with the

amended Part 64 of FCC rules (CC Docket No.

91-35),

which requires that equipment sold and installed in the “call aggregator”market (i.e., hotels, motels, hospitals, universities, etc.) must allow users equal access to the long distance carriers of their choice (i.e., must allow the

10xXx

dialing sequences normally used for “operator-assisted” calls, while blocking those normally used for ‘direct-dial” calls). In the future, this equipment may be modified to comply with this requirement.

NOTICE: THE TELEPHONE

lNSTRUMENTS

SPE-

CIFICALLY DESIGNED FOR THIS SYSTEM HAVE

HEARlNG-AID COMP-LE

ARE lN COMPLIANCE

HANDSEXS THAI-

WlTH

SECTION 68.316 OF

THE FCC RULES.

WARNING:

This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s

instructions, may cause interference to radio and television reception. It has been type tested and found to com-

ply with the limits for a Class A computing device in

accordance with the specifications in Subpart J of Part 15 of FCC Rule. Operation of this equipment in a residential area may cause unacceptable interference to ra-

dio and TV reception requiring the operator to take whatever steps are necessary to correct the interference. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient the receiving antenna

Relocate the equipment cabinet with respect to the

receiver

Check that the equipment cabinet and receiver are

not on the same circuit; the equipment cabinet must be powered from an isolated, dedicated AC outlet

If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the FCC helpful: “How to Identify and Resolve Radio-TV Interference Problems”

This booklet is available

from

the U.S. Government

Printing Office, Washington, D.C. 20402, Stock No.

-398-5. If

RFI

problems persist, contact Inter-Tel Customer

support.

Page xviii

INTER-TELPRACTICES

IMX/GMX

256

INSTAUATION & MAINTENANCE

SAF+ETYREGULATIONS

Issue 1, November 1994

.SAF’ETY REG-ONS

The Inter-Tel

listed by Communication Certification Laboratory (CCL) as meeting the Product Safety Requirements of UL 1459, Standard for Telephone Equipment.

CCL is approved by the Occupational Health and

Safety Administration

Recognized Testing Laboratory

installation, also check the local

for importalrt information concerning the irzstalla-

tion of telephone and electronic quipment.

The following safety information is reprinted from UL

1459.

Ih4X

and GMX 256 Systems are

(OSHA)

as a Nationally

(NRI’L).

eldrical

Befonz

codes

IMPORTANT SAFETY

INSTRUCTIONS

When using your telephone equipment, basic safetypre- cautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the

following:

1. Read and understand all instructions.

Follow all warnings and instructions marked on the product.

3. Unplug this product cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

4. Do not use this product near water (for example, in a wet basement).

Do not place this product on an unstable cart, stand, or table. The product may fall, causing serious damage to the product.

6. Slots and openings in the cabinet and the back or bottom are provided for ventilation, to protect it from overheating; these openings must not be blocked or covered. This product should never be placed near or over a radiator or heat register. This

product should not be placed in a built-in installa-

tion unless proper ventilation is provided.

7. This product should be operated only from the type of power source indicated in the manual. If you are not sure of the type of power source to your building, consult your dealer or local power company.

8. This product is equipped with a three-wire grounding type plug, a plug having a third (grounding) pin. This plug will only fit into a grounding type power outlet. This is a safety feature. If you are unable to

insert the plug into the outlet, contact your electri-

from

the wall outlet before

cian to replace your obsolete outlet. Do not defeat the safety purpose of the grounding type plug.

Do not allow anything to rest on the power cord. Do not locate this product where the cord will be

abused by persons walking on it.

10. Do not use an extension cord with this product’s power cord. The AC outlet for this product should not be used for any other electrical equipment.

11. Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a

risk of fire or electric shock. Never spill liquid of any kind on the product.

12. To reduce the risk of electric shock, do not disas-

semble this product, but take it to a serviceman when some service or repair work is required. Opening or removing covers may expose you to dangerous voltages or other risks. Incorrect reassembly can cause electric shock when the product is subsequently used.

13. Unplug this product from the wall outlet and refer

servicing to qualified service personnel under the following conditions:

When the power supply cord or plug is dam-

aged or frayed. B. If liquid has been spilled into the product. C. If the product has been exposed to rain or wa-

ter. D. If the product does not operate normally by fol-

lowing the operating instructions. Adjust only

those controls that are covered by the operating instructions because improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal op-

eration.

E. If the product has been dropped or the cabinet

has been damaged.

If the product exhibits a distinct change in performance.

14. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning.

15. Do not use the telephone to report a gas leak in the vicinity of the leak.

qualified

SAVE THESE

INSTRUCTIONS

Page xix

E~mber1994

JMXIGMX 256 INSTALLATION & MAJNTENANCE

INTER-TELPRACTICES

-LIMITlSD W-Y

For a period of one (1) year from the date of shipment to

Buyer, INTER--TEL warrants the Equipment (except for fuses and lamps) to be free workmanship, or both, and to comply with specifications for the Equipment, as set forth in the

and

Field Main&nunce

clusive remedy for breach of this Limited Warranty shall be to have the defective Equipment (or parts) repaired or replaced at INTER-TEL% option. Shipping

costs incurred returning warranty work to INTER-TEL shall be paid for by the Buyer.

extendsonly thirdprvty.

Equipment (or parts) damaged by improper handling, normal wear and tear, accidents, lightning damage, neg-

ligence, or improper use or maintenance, and does not

apply to Equipment altered without authorization by INTER-TEL. This Limited Warranty does not extend to

any claims, suits, damages, liabilities, costs, and expenses arising from any act, action, or inaction of Buyer. Although the Moss-Magnuson Act should not apply, in the event that it is held to apply by a court of competent

jurisdiction, the implied warranty of fitness for a par-

ticular purpose shall extend for the one-year (l-year) period from the date that the Equipment was shipped to the Buyer.

to the Buyer,

This Limited Warranty does not apply to

from

Manual.

notto

defects in material,

Zn&&tion

Buyer’s sole and ex-

This Limited Warranty

any customer, user, or

THIS

W-IS

ALL OTHER

ZhK’LUDZNG, BVTNOTLhUZlED To, THEZiUPXLED

W-

FOR A

W-ZES ZTEDW-ZNNOEiXNTSZULLINTER-TEL

L.MZ3LE ZhVZDENlXL

LOSS OF BUYER ZN POSSESSION,

EQlIJLPm

WmD

For complete information on returning equip

merit, refer to the current Inter-Tel

turn

This document includes specific information on the following subjects: warranty, procedures to

follow when returning equipment, equipment

damaged in shipment, insurance, repair policy,

and advance replacement policy.

W-

PARTICULAR

FOR LOSS OF

OR CONSEQUENTIAL

TZiUE

CONNECl7ON Wi’TH

BY THE

Policy

LlEU

OF AND EXCLUDES

EXPRESS OR ZiUPKlED,

iU??RC

i!MNlABm

PURPOSE.

WZiZZCHEXTEND

Ah’TZCZR~D

OR OTHER LOSSES ZNCUZMED BY

OPERAIION,

SUCH

CLAZiUS BEZNG EXPRESSLY

ZhKfXUVG COMB3

(document part number 835.1065).

OR USE OF

FIluESS

THEM AZ&5

BEYOND

THE PURPOSE,

TZf&SLZM-

PROFZl3,

DAM!XGES,

Material Re-

THE

‘-3

Page xx

INTER-TELPRACTICES lMX/GMX

256

INSTAWLATION &

MAINTENANCE

OVEIRVIEW

Issue 1, November

OVERVIEW

1994

CONTENTS

1. Introduction ..........................................................

2. System Capacities .....................................................

3. Software Packages

....................................................

4. Hardware Summary ...................................................

Installation, Programming, And Maintenance Summary

....................

6. Features Summary ....................................................

. System Features ...................................................

Keyset

C. Enhanced Single-Line Set (ESLS) Features

D. Single-Line Instrument

Features ...................................................

............................

(SLI)

Features ................................

E. Direct Station Selection/Busy Lamp Field (DSS/BLF) Unit Features .

Attendant Computer Console Features

G. Attendant Features

................................................

................................

H. Maximum Capacities ..............................................

.......

PAGE

l-l l-l l-2 l-3 l-3 l-4

l-4 l-5

l-6 l-6 l-7 l-7 l-7 l-8

1. INTRODUCTION 2. SYSTEM CAPACITIES

1.1 The 256

ce/data, hybrid telephone system. As a hybrid system, it incorporates many of the user-tiendly features of key systems with many of the expanded features and flexibility of private branch exchange (PBX) systems.

1.2 The 256 System is designed to meet the needs of growing businesses. In fact, the system’s unique structure (including digital signal processing) allows it to be

easily adapted and expanded as business communication needs change. The modular design makes the system easy to install and service. And, the programmable features provide an abundance of user-friendly applications to meet each customer’s needs. Highlights of the system’s design include:

Advanced microprocessor technology.

Modular, easily replace-able hardware with add-on

capabilities for optional features.

Flexible programming to customize many system

and station features.

System is a state-of-the-art, digital, voi-

2.1 The equipment cabinet has 16 slots for station and

trunk cards. The actual number available depenak on the nwnber and type tion

in&uznts, andpower

2.2

For example, if all 16 cards are station cards, there can be a maximum of 256 station instruments installed. Or, if only one of the cards is a type of Keyset Card (required), four are Tl Cards (the maximum allowed), and

the other 11 are Loop/Ground Start Cards, the system maximum is 16 stations (using digital keysets or using

g-line IMX AIM

circuit) and 184 trunks. Of course, in most circumstances, the maximums listed below will never be reached due to the variety of cards and station instruments installed.

A fully-equipped 256 System has the capacity for

up to:

256 Ports (16 available card slots with a maxi-

mum 16 circuits per card equals 256 ports. Although it is theoretically possible to equip more than 256 ports [e.g., using Tl Cards and/or digital or 8-line IMX AIM keysets], the system limits the number to 256. See page 2-6 for more information.)

keysets,

which can be installed two to a

of stations and trunk

supply motihles installed

cards, sta-

Page l-l

OVERVIEW

Issue 1, November 1994

IMWGMX 256

INSTALLATION

INTER-TELPRACTICES

MAINTENANCE

- 216-220

Non-Blocking Voice Channels (The

exact number of voice channels available de-

pends on the

number

of DTMF decoders installed in the system. The voice channels are available for outside calls, intercom calls, and

paging on a first-come, first-served basis. See page 2-6 for more information.)

184 Central Office (CO)

Trunks

(Loop start

and/or ground start trunks installed in increments of up to eight or 24, depending on the number of

Loop/Ground Start Cards Cards [LsCs], and/or Tl Cards in the equipment cabinet.

have up to eight CO trunks installed, while

[LGCS],

FlCs]

LGCs

Loop Start

installed

and

LSCs

can

TlCs

can have up to 24 CO trunk circuits installed.)

NOTE:

The system is limited to a maximum of

four Tl Cards. (Pour cards with up to 24 circuits

per card equals 96 possible Tl trunk circuits.)

- 184

Direct Inward Dialing (DID)

l’kunks

(Direct station access trunks installed in increments of up to eight or 24, depending on the number of Inward Dialing Cards Cards installed in the equipment cabinet.

[n>cs]

and/or

IDCs

can have up to eight DID trunks installed, while

TlCs

can have up to 24 DID trunk circuits

installed.)

140

E&M ‘Ihmks

(Special “tie” trunks between

two supporting telephone systems [e.g., between

two 256

Systems] installed in increments of up to four or 24, depending on the number of E&M Cards

WCs]

equipment cabinet.

E&M

trunks installed, while

and/or Tl Cards installed in the

EMCs

can have up to four

TlCs

can have up to

24 E&M trunk circuits installed.)

- 256

Stations (Combinations of

keysets, DSS/

BLF Units, Attendant Computer Consoles, and single-line sets in increments of up to eight or 16, depending on the number of Digital Cards

[DKSCs], Keyset

Ds],

Single-Line Cards

Cards

[SLCs],

PCs

and/or Inward

Keyset

KSC-

Dialing Cards @DCs] installed in the equipment cabinet. XSCs can have from eight to 16 stations connected depending on the type of

keysets

used, SLCs can have up to 16 stations connected, and IDCs can have up to eight.)

NOTE: At least one DKSC,

KSC,

or KSC-D must be installed to provide an attendant (equipped with a display keyset or an Attendant Computer Console) to program selected system data, act as the attendant for unsupervised CO recalls, receive system alarm messages, etc.

Keyset

Circuits Equipped With Direct Station Selection/Busy Lamp Field Units

(Digital DSWBLF Units are physically at-

@SS/BLF)

tached to and programmed to be used with specific digital

keysets.

Up to four units may be

attached to one keyset. The units are powered by

their own AC transformers and do not require a

DKSC circuit that is separate from the keyset’s circuit. Analog

keys&,

analog DSS/BLP Units, and Attendant Computer Consoles use separate KSC or KSC-D circuits. For each analog DSS/ BLF Unit installed, one less analog keyset or At-

tendant Computer Console may be installed. Up to four analog to a single

DSS/BLF

Keyset

Units may be connected

Card, and as many units as de-

sired can be used with a single keyset. See page

2-27

for more information.)

3. SOFTWARE PACKAGES

3.1 The IMX 256 System is available in five software “packages” (refer to REPLACEMENT PATnrs for the part numbers). The customer can choose between one

KP-rated system and four MP-rated systems. The KP-

rated system permits only one trunk to be accessed per trunk key, and users can access only one auto trunk and only one trunk in each of the trunk groups. The MP-rated systems permit one-key access to multiple outgoing trunks. The five software packages are listed below.

MF-rated,

This software package has all of the features

MErated, Extended

This software package has all of the features

MF-rated,

This software package has all of the features

Xl?-rated,

This software package has all of the features

3.2 The IMX 256 system has an additional software package that has all of the features described in this manual, plus it allows the GX station instruments to be

installed on the system. (Refer to Appendix A in the

back of the manual for complete information.)

Basic

package:

described in this manual except Toll Security, Intercom/Outside Directory, Automated Attendant, Station Message Detail Accounting (SMDA),

Tl,

and E&M.

package:

described in this manual except Tl and

Etiendedplus

Tl and E&M

E&&M.

package:

described in this manual.

Ext&plus

Tl and E&M

package:

described in this manual except Least-Cost Routing @CR).

Page l-2

INTER-TELPRACTICES

IMX/GMX

256 INSTALLATION & MAINTENANCE

Issue

OVERVIEW

1, November 1994

NO’I‘E:

wishes to change from an existing RF-rated system to an MF-rated system (or vice versa), the installing company must advise the customer “to notify the telephone corn-

party of the change if they want the

that they may have to certify in writing to the telephone company that the equipment is configured as a key system and pay appropriate service order charges.”

4.1’ plains environmental requirements of the system, describes the hardware, and gives pre-installation information. The hardware descriptions include: equip ment cabinet, power supply, circuit cards, station instruments, and additional equipment needed for the

optional features.

According to FCC regulations, if a customer

[ICF

or MF] rate and

HfmDwAREsuMMARY

The SPEClFICATIONS section of this manual ex-

INSTALLATION, PROGRAMMING, AND MAINTENANCE SUMMARY

5.1

The modular design and self-diagnostic capabili-

ties of the system facilitate installation and repair with minimal down-time. Strict quality control standards for manufacturing and thorough field testing provide the system with the reliability demanded by today’s

technology market.

5.2 The

tions for assembling the main distribution frame (MI@)

and for installing the equipment cabinet, power supply, circuit cards, station instruments, and other optional hardware.

53 cedures for programming the system features. After the system is installed, the flexible software allows the database to be customized to meet the customer’s needs. An external, customer-provided, IBM AT-compatible personal computer (PC) is used to perform this task.

5.4 The

instructions for correcting system problems and replacing defective parts. Part numbers and a recommended inventory of spare parts are listed in the

MENT PARTS section.

IN~~ON

ThePRGGRWMINGsection describes the pro-

TROUBLESHGGTING

section

contains

section gives

high-

instruc-

REPIACE-

Page 1-3

OVERVIEW

Issue 1, November

1994

IMX/GMX

6. FEATURESSUMMARY

6.1

System,

Attendant Computer Console, and attendant features are listed on the following pages.

with an asterisk

complete descriptions and operating instructions, refer to the SPECIFICAI’IONS and this manual.

k SYSTEMFEATURES

Hardware add General System

Five available software packages Flexible station instrument

bering plan

mo DB9

ing Unit

SMDR/SMDA output devices or an external (IBM

AT-compatible) PC for programming

Easily

front edge of the RCPU Card Database battery back-up with voltage test points Adjustable baud rates for on-site programming and

the optional

300,600,1200,2400,4800,9600,

Computer modem with software auto-baud on the RCPU Card for remote programming (300 and 1200 baud)

Variable system timers Industry-standard message waiting capability on

SLCs (using

of system voltages)

l * Optional Station Message

(SMDR) and/or Station Message Detail Accounting

(SMDA) output device(s)

One relay on the RCPU Card is dedicated as a power failure transfer relay; the other relay is a general purpose relay that can be used for night transfer, general signaling devices, etc.

Optional Attendant Co

computers equipped with headsets; allow the user to view system activity on the monitor and to process calls and messages using the keyboard)

* Two optional external music sources

* Optional off- premises

able ring cadence

* Optional OPX repeaters

* Optional multi-port voice mail system

* Optional

keyset,

single-line set,

Those

(*) mquire aa2iitional eqwpment.

con&uration

DSS/BLF

future murkzd

sections of

Featulres

and num-

Unit,

For

connectors on the ROM Central Process-

(RCPU)

Card for connecting optional

accessible system voltage test points on the

SMDR/SMDA

output devices (110,

and 19200 baud)

-1OWDC

derived from a combination

Detail Recording

mputer Consoles (personal

extensions (OPXs) with vari-

talkback

speaker equipment

256 INSTALLATION & MAINTENANCE

* Optional facsimile machine

Optronal doorbox

* Optional battery back-up

* Optional exte ma1

* Optional playback devices for use with the auto-

INTER-TELPRACTICES

paging equipment

mated attendant and hunt group features

System Organization and Record Keeping

Featpres

Ten paging zones and nine external paging ports

* Station Message Detail Recording (SMDR)

l * Station Message Detail Accounting (SMDA)

available only in the

and

E&M software packages

* Programmable reports for toll restriction, Least-

Routing

Exfer&d

&CR),

and station data

and

Ex&naMplus

Call cost accounting (estimated)

Forced, forced LCR toll, standard, optional, and

class-of-service account codes (forced account codes can be validated or non-validated)

Flexible attendant arrangements Tenant groups and departments

* Hunt groups with individually-programmed timers (may have optional overflow and announcement stations with playback devices)

System alarm display and reporting

l Voice computer hunt groups with optional

IYIMF

feedback tones

lhmkFeatures

Auto trunks and trunk groups (restricted to accessing a single trunk on KF-rated systems)

Automatic incoming trunk answering Dual-tone multi-frequency

(MMF)

or dial-pulse

signaling

Loop start and/or ground start compatibility

Hybrid balancing (ideal, loaded, or unloaded) for optimal CO trunk performance

CO trunk receive and transmit adjustments for optimal voice volume levels

Relaxed ring detection (ground start trunks on LGCs

OdY)

Outgoing-access, allowed-answer, and ring-in

assignments on a station-by-station basis (day lists

and night lists)

Day and night modes of operation (by tenant group)

Day and night toll restriction on a station-by-station basis (including provisions for eight area/office code

Page 14

INTER-TELPBACTICES

IMX/GMX

256

INt3lXLLATION &

MAINTENANCE

Issue 1, November 1994

OVERVIEW

.. I

restriction user groups and PBX, absorbed-digit, and equal access dialing)

Least-Cost Routing (LCR) (may be programmed on

a station-by-station basis to be transparent to the

-not available in the

and

E&M software package

System-wide Call Privacy Release option

Trunk reseize capability on a station-by-station basis

Direct Inward System Access

Extended

packages, DISA lines can have toll restriction class of service similar to station toll restrictions

l * Automated attendant

Exmuiki and

packages Basic Tl trunk emulation Basic E&M networking (tie trunks) Direct inward dialing (DID) trunks Flexible DID ring-in assignments Programmable wink, immediate, or delay start op-

tions for DID and EgLM trunks

Toll Security with weekly limits for 7- and

and/or operator-assisted and international calls available

and E&M

General Station Features

Programmable feature codes for easy station operation

Call privacy/privacy release

Station-to-station intercom calls

Off-Hook Voice Announce (OHVA) calls (the ability to place or receive OHVA calls depends on the

type of station instrument used, and may be enabled/

disabled on a station-by-station basis)

Inter-station messages and message cancel Station exchange

Ring intercom always Private intercom call override

Automatic camp on to busy stations, trunks, and LCR (ability to camp on to LCR may be disabled on

a station-by-station basis) Busy trunk/station callback (queue) Individual hold Call splitting Hold recall

and

Extendedplus Tl and

ExtUplus

only in the Extended

software packages

KF-rated, Exhznakdplus

@ISA) -

E&U

available only in the

Tl and

E&Msdware

and

Exzendedplus

in the

software

Xl-digit

Call waiting

Call transfer to outside telephone numbers and extension numbers

Transfer to hold

Transfer recall

Reverse transfer and group call pick-up

conference calls taneous three-party conferences to four simultaneous &party conferences

System forwarding (routes calls based on the type of

call and the status of the intended station)

Call forward to extension numbers and hunt group

pilot numbers

Call forward to outside telephone numbers

System speed dialing (including non-display and

tenant-specific numbers) - can be programmed to

override station class of service

Station speed dialing

Redial (last number dialed or, at keysets only, last

number saved)

Do-not-disturb with customized messages (the abil-

ity to place a station in do-notdisturb may be en-

abled/disabled on a station-by-station basis)

Cancel miscellaneous operations

Hookflash (over all types of trunks)

Hunt group remove/replace

House phone

Silent messaging (leaves a message at a stationwith-

out placing an actual call)

KEYSET

Various digital and analog keyset models are avail-

able (for a complete listing of all the keyset models available and the optional equipment that may be installed on them, refer to pages 2-21 and 2-25 in

SPEClPICAl-IONS)

Digital

keysets allow the users to individually control voice

and tone volume levels for intercom calls, outside calls, background music, etc.

models) for viewing: numbers dialed; speeddial numbers; inter-station, do-notdisturb, and reminder messages; date/time; programming; etc.

Optional Data Port Module on IMX 12-/2Q-line key- sets and modem-equipped data device (for simultaneous

keysets,

* Liquid crystal display (LCD) (optional on some

-capacity ranges from 10 simul-

FEATURES

AIM

keysets,

keyset

Inter-Tel/DVK keysets

and

identification; station

for installing a

Inter-Tel/DVK 1

OVERVIEW

Issue 1, November 1994

IMX/GMX

INTER-TELPRACTICES

256 INSTALLATION & MAINTENANCE

voice/data communication), or for installing a loud

ringing adapter (LRA) and signaling device(s)

l * Optional Personal Computer Data Port Module

(PCDPM) on digital keysets for off-hook voice an-

nounce receive capability and to allow a digital

DSS/BLF Unit and/or an optional Modem Data Port

Module to bc installed

l * Optional Modem Data Port Module

digital keysets for installing a

modem+z&peddata

(MDPMJ

device (for simultaneous voice/data communica-

tion) or a single-line set -requires a PCDPM

12-key pushbutton keypad

“Hot”

keypad

-allows dialing of

feature

codes, extension numbers, and trunk access codes without pressing the SPCL key or lifting the handset

Up to 20 key maps for determining the exact layout and function of the keys

Feature keys for one-key access to feature codes

(some of the keys may be designated as user programmable)

ICKO

speed-dial (SD) keys with light-emitting

diode (LED) indicators

Call appearance keys with LED indicators (for incoming call indication/access)

Secondary call keys with LED indicators (show ring-in indications for the designated ‘Primary” station)

Individual trunk keys with LED indicators (for incoming and outgoing call indication/access)

Trunk group keys with LED indicators (for outgoing call access and trunk group status)

Integrated speakerphone (allows handsfree operation on outside calls and intercom calls)

Speakerphone on/off

Slide-out directory card

Ring and voice volume controls

User-programmable ring tone

Self-test function

Hearing aid-compatible (I-WC) handset

Reversible baseplate and cradle hook for wall

mounting

* Optional headset

* Optional handset amplifier

* Background music (two sources)

Microphone mute

Handsfree answer enable/disable

l On-hook dialing/monitoring

System hold Station call monitoring (hunt group supervisors

OdY)

Call barge (break through to a busy station) Do-not-disturb override (the ability to override do-

not-disturb may be enabled/disabled on a station-by- station basis)

Activity release feature (primarily intended for use with the Attendant Computer Console; entering this feature code terminates any current activity and returns the station to idle or dial tone)

Page remove/replace Intercom (extension number) and outside (system

speeddial number) directories - available only in

the Extended

and

ExendedpruS

Tl and E&M soft-

ware packages Automatic intercom and/or outside call access

ENHANCED SINGLE-LINE SET

@SL!3)

FEATURES

12-key pushbutton keypad

User-programmable feature keys for one-key access to feature codes

Timed hookflash (FLASH) key Neon lamp for message waiting indication Ring volume control Selectable ring tone (HI or LO) Hearing aid-compatible

(HAC)

handset

Reversible baseplate and cradle hook for wall mounting

Selectable AC/DC ringer

* Optional handset amplifier

SINGLELINE INSTRUMENT

(SLI)

FEATURES

0 l%-key

pushbutton keypad

User-programmable feature keys for one-key access to feature codes

Timed hookflash (FLASH) key

Ring volume control

Hearing aid-compatible

Reversible baseplate for wall mounting

Selectable AC/DC ringer

Optional message waiting indication tones

* Optional handset amplifier

(HAC)

handset

Page l-6

INTER-TETJPRACTIC~ IMX/GMX

* Up to 50

Each unit has 60 keys with LED indicators for one-

256

INSTALLATION &

MAINTENANCE

DIRECT STATION SEZECTION/FWSY

LAMP

FIELD

@SS/B~ UNlT FEATURES

keyset

circuits may have units installed

key access to up to 60 extension numbers (the LEDs show the status of the assigned stations and/or hunt

groups)

Up to eight key maps for determining the layout and numbers accessed by the keys

A’lTENDA.NT

COMPUTER CONSOLE

FEnwtEs

IBM

XT-, AT-, or

CGA, EGA, or VGA monitor and Monitor Interface

3Wcompatible

computer

Card

122-key custom keyboard

Headset operation

Visual display of system call activity, system directory, system alarms, date and time, etc.

Automatic call priority

Quick, simple call answering and transfer

NOTE: For additional information on the Attendant Computer Console, along with detailed installation and

Issue 1, November 1994

OVERVIEW

programmiq~ instructions, refer to the manual included

with the console.

AlTENDANTF’EATURE!3

System speed-dial number/name programming

Remote canceling of do-not-disturb and call forward for stations served

System alarm reporting/clearing

Enable/disable system night mode

Set date and time of day

Attendant recall

System do-not-disturb and reminder message pro-

EFamminP

Station feature programming (user name, tenant group, department, and attendant)

Immediate off-hook voice announce (OHVA) calls (requires special programming and an Attendant Computer Console or a DSS/BLF Unit)

Enable/disable background music to external paging speaker(s)

Trunk maintenance feature for taking trunks out of

service and placing them back in again

SMDAreport

can be generated at any time by enter-

ing a feature code

Page l-7

OVERVIEW

Issue 1, November

MAXIMUMCAPAClTlE!3

6.2

Some

of the features have maximum capacities

1994

that are dependent on the availability of system channels and/or circuits. The features with such capacities are listed in the following table.

FEATURE

Voon-blocking voice chaanels/poxts

Paging zones

Extexnal paging pelts

Conference

dmuits

available

Parties per conference

Simultaneous conferences

System speed dialing

Numbers per system

Digits

per number

Station speed dialing

Numbers per Numbers per Numbers per single-line set

CO and/or IC

Digits Digits

Redial numbers

keyset keyset -

per entry - CO per entry - IC

per station

CO IC

Digits per number

LCR

Route groups Facility groups

Trunk groups Dial

rules (16

total

programmable

Facility

per facility group

digits each)

group

callback requests per

system

Camp on requests per system

Callback (queue) requests per station

Camp on by a station

Stations camped on to a station

Ptatlons

camped on to a tnmk group

hter-station Programmable reminder messages

Message

Do-not-disturb messages

Messages par system

Ring-in/allowed-answer patterns

System forwarding paths

Paths per station

Points

messages per system

requesk

per system

per

path

1 CAPACllY

220

400

10 10

10 16

19 24

32 29

50 so

1 1

255

240

286

120

266

200

3 4

IMX/GMX

Toll

Allowed

Alteraate canier

Account codes

Attendants

Hunt

Tenant groups

Tlhlnks

Map

Secondarg call key stations per

station

b Ifuaingthrewiigitext

= Plualovcrflow * Asmanyasdesireduntilatotalof480forallhuntgroupsisreached c orunlimited f AsmanyPSdcSireduntilatotalof400forallDIDtrunLgroupsb

256

lNSTALLATION % MAINTENANCE

FEATURE CAPAClTY

action

Extended

Digits

Forced Standard 128

clsss-of-selvice Digits

SMDA account codes

Attendant Computer Consoles

DSS/RL.F-equipped circuits Rxtension numbers per

groups

Per system Stations per hunt group Announcement stations per hunt

group

Overflow stations

overflow counts

Departments per tenant group

Auto

CO/E&M trunk

Trunks per group

DID trunk groups

Trunks per group

DID entries

Entries per DID group

pup

Keyset DSWRLF

Secondary

pr~edwithaponnd(#)tospeeddialprivateintercomcallstothe

station. Or, a “4” (the default feature coda for ravaraa transfer) may

be entered before a station extension

number to qaickly reverse tramfar or hunt group.

user groups

area

codes par

long

distance numbem 20

per

number

numbers

per number

per code

tnmks

groups

assignments

tail

keys per station

group

DSS/RLF

per

group

enaion

num~anexte.naionn~canbe

prhuy

rumba

(pii

Unit

up) calla

B 50

iis

o-127c

or hunt group pilot

Lam

that station

INTER-TELPRACTICES

8 4

256

128

184

10 16

Page

l-8

INTER-TELPRACTICES

IMX/GMX

CONTENTS

256 INS’E4LLATION

Lik

MAINTENANCE

SPECIFICATIONS

Issue 1, November 1994

1. Introduction

Cabling And The Main Distribution Frame (MDF)

.........................................................

........................

. Station Connections ...........................................

‘Ihnk

3. Equipment Cabinet .

E&ipment

B. Functional Description

Connections ............................................... 2-5

..................................................

Cabinet Description ....................................

............................................ 2-6

. Environmental Requirements ......................................

D. System Power Supply .............................................

E. Circuit Cards

....................................................

..i.

2-2 2-4

2-4

2-6 2-6

2-8

2-10

4. Station Instruments .................................................. 2-21

. IMX 256 B.

GMX.256 Keysets

C. IMX 256 DSS/BLF Units D. GMX-256

Keysets

DSWBLF

.................................................

................................................

..........................................

Units .......................................... 2-28

E. Attendant Computer Consoles

......................................

2-21

2-25 2-27

2-28

F. Single-Line Sets .................................................. 2-29

G. Off-Premises Extensions

H. Playback Devices .................................................

5. Additional System Equipment .........................................

Personal Computer (PC) For On-Site Or Stand-Alone/Remote

Programming

.................................................. 2-31

B. Programming PC And SMDR/SMDA Output Device Requirements

System Battery

Back-Up

D. Additional Information ............................................

(OPXs)

....................................

2-30

2-31

...... 2-31

........................................... 2-32

2-32

Page 2-l

SPECIFICATIONS

Issue 1, November 1994

1. INTRODUCTION

1.1

This section of the manual describes the following

256

System hardware:

Cabling and the Main Distribution Frame (MDF)

Equipment Cabinet

Power Supply

Circuit Cards

Station Instruments

Additional System Equipment

1.2

The 256 System has 16 slots available for station

andtrunkcards.l%emarimum

trunk9 that can be installed&pen& on the number and

typ

cards;

mod&s

station

used.

For example, there could be as many as

insmunent

184 trunks installed (using one Keyset Card [required], four Tl Cards [the maximum allowed], and 11 other- type trunk cards). Or, there could be as many as 256 sta-

m tions

(using a combination of digital

IMX AIM keysets, and single-line sets). NOTE: Generally, one station instrument can be in-

stalled on each available station circuit. However, the new

84ine

“dual-circuit” specially designed so that two of these keysets can be installed on a single circuit, if desired. be equipped with any combination of the various keyset models.

1.3 The trunks

and stations are controlled by the cir-

cuit cards in the equipment cabinet.

1.4

A wide variety of station instruments can be used

on the Inter-Tel IMX and GMX-256 Systems, including:

IMX 256

Digital Station Instruments

Standard Digital Keyseta (also referred to as Standard Digital Terminals)- display and non-display

l Executive Digital

Keysets

Executive Digital Terminals) - display only

Digital Direct Station Selection/Busy Lamp Field

IMX 256 Analog

(DWBLF)

24-Line

units

Station Instruments

AIM Keysets (display only)

number of

aMww0 ~PP&

keysets, 8-line

IMX

AIM

keyset

Keyset

(also referred to as

stations and

has been

Cards can

IMX/GMX

0 0 0 0 0 0 0 0 0 0

256

INSTALLATION &

12-Line

8-Line

AlM

Keyseta (display only)

Dual-Circuit AIM Keysets (display only)

24-Line Keysets (standard and display)

12-Line Keysets (standard and display)

8-Line

Keysets (non-display only) Attendant Computer Consoles

DSS/BLF Units

Enhanced Single-Line Sets (ESLSs) Single-Line Instruments (SLIs) Industry-Standard Single-Line, Dual-Tone

INTER-TELPRAcTlcEs

MAINTENANCE

Multi-Frequency (DTMF) Sets

NOTE: With the proper software package, the Inter-Tel

GX station instruments can also be installed on the IMX 256 System. Refer to Appendix A in the back of the

manual for complete information.

GMX-256

Analog Station Instruments

Inter-Tel/DVK

24-Line

Keysets (standard and dis-

play)

‘0

Inter-Tel/DVK 12-Line Keysets (standard and dis-

play)

Inter-Tel/DVK 8-Line Keysets

(standard and dis-

play)

GMX 24-Line Keysets (standard and display)

GMX 12-Line Keysets (non-display only)

GX 24-Line Keysets (standard and display)

Attendant Computer Consoles

Inter-Tel/DVK Direct Station Selection/Busy Lamp

Field (DSWBLF) Units (single or tandem)

GMX DSWBLF Units (single only)

GX DSWBLF Units (single or tandem)

GMX Single-Line Instruments (SLls)

SLIS

Industry-Standard Single-Line, Dual-Tone

Multi-Frequency

(MMF)

Sets

NOTE: For more information on the GX and GMX station instruments, refer to appendixes

Aand

Bin the back

of this manual.

Page 2-2

INTER-TELPRACTICES

lMX/GMX

256

INSTALLATION & MAINTENANCE

SPECIFICATIONS

Issue 1, November 1994

1.5 A wide variety of optional system equipment can also be installed, including:

Off-premises extensions (OPXs) and OPXrepeaters,

refer to pages 2-30 and 3-30.

Playback devices, see pages 2-30 and 3-95. Output device(s) for the Station Message Detail Re-

cording (SMDR), error recording, and Station Message Detail Accounting (SMDA) features, refer to pages 2-31 and 3-98.

System battery back-up (uninterruptable power sup ply or standby power supply), refer to page 2-32.

?kro external music sources, refer to pages 2-10 and

3-99.

Power failure transfer equipment, refer to pages

2-11 and 3-30. Night switch equipment, refer to pages 2-11 and

3-30.

General signaling devices, refer to pages 2-11 and 3-30.

External paging speaker equipment, refer to pages 2-6 and 3-98.

Doorbox, refer to page 2-32.

Multi-port voice mail 2-32.

Facsimile machine, refer to page 2-32.

Talkback speaker equipment, refer to page 2-32.

equipment,

refer to page

Page 2-3

SPECIFICATIONS Issue 1, November

1994

IMX/GMX

256 INSTALLATION & MAINTENANCE

INTER-TELPRACTICES

2. CABLING AND

THEMAIN

DISTRIBUTION FRAME (MDF)

2.1

0xwctions

ments, external equipment, and the station and trunkcir-

cuit cards are made at the MDF. The MDF is made up of

industry-standard, 66Ml-SO-type terminal blocks and, if using Tl Cards, eight-conductor

jack assemblies. Bridging clips are used on all terminal

blocks to complete the connections. As many as 17 blocks may be needed, including any combination of the following:

l-15

blocks for CO trunk terminations and Loop/ Ground Start Card (LGC) and/or Loop Start Card

(LX) terminations.

1-15 blocks for DID trunk terminations and Inward

Dialing Card (IDC) terminations.

1-15 blocks for E&M trunk terminations and E&M

Card @MC) terminations.

1-16 blocks for station cabling terminations and

Digital

Keyset

RX-D), Single-Line Card (SLC), and/or Inward Dialing Card (IDC) terminations.

1 block for optional system equipment terminations and ROM Central Processing Unit (RCPU) Card terminations.

between the

hnks,

(RJ48C)

station instru-

modular

Card (DKSC), Keyset Card (KSC or

mount the terminal blocks, modular jack assemblies,

and any optional peripheral equipment.

SllATION

2.3

For each keyset, analog DSS/BLF Unit, Attendant

CONNECTIONS

Computer Console, single-line set, and playback device, three-pair (24 AWG) twisted cable is run from

the station location to the MDF. All station cables are terminated on blocks at the MDF and on six-conductor modular jack assemblies at the station locations.

NOTE: It is recommended that three-pair twisted cable and six-conductor modular jacks be used for all station

ConnectiOllS.

This

allows the various

types

of station instruments to be easily interchanged if necessary. However, if desired,

ESLSs, SLIs,

single-line DTMF sets,

and playback devices can be installed using one-pair

twisted cable and four-conductor modular jacks.

2.4 Industry-standard, 25-pair telephone cable is used to connect the station blocks to their corresponding station cards. Female

%-pin

amphenol-type connectors on the cables attach to the male connectors on the station cards in the cabinet.

2.5 To meet Part 15 of FCC Regulations, all station cables must be equipped with ferrite beads. ‘Iwo ferrite “split” beads (two half beads) are installed on each

25-pair cable just below the amphenol-type connector.

The beads help to reduce electromagnetic interference

(EMI) and radio frequency interference (RPI).

2.2

The MDF requires at least a 4 x

2.4meter), @rich

plywood backboard. (Depending on

&foot

(1.2 x

the number of stations and trunks installed, a larger backboard may be necessary.) This will allow room to

NOTE:

Each ferrite split bead, which is actually half of

a fall bead, is ordered individually (see REPLACE-

MENT PARTS for the part number). Two split beads are required to form one complete bead.

Page 2-4

lNTEIbTELPR4mcES

JMX/GMX

TRUNK

2.6 The CO, DID, and

256 INSTALLATION &

CONNECTIONS

E&M

trunks are terminated on

MAINTENANCE

telephone company RI-type blocks, as required by FCC regulations. Cross-connect cable is used to connect the

RI-type blocks to the CO, DID, and E&M terminal blocks on the MDF. The trunks are then connected to the Loop/Ground Start Cards

(LSCs),

Cards

Inward Dialing Cards

(E&Q)

using industry-standard, 25-pair cable.

Female 50-pin amphenol-type

(LGCs),

(IDCs),

w~ectors

Loop Start Cards

and/or E&M

on the cables

attach to the male connectors on the cards.

2.7

To meet Part 15 of FCC Regulations, all trunk cables must be equipped with ferrite beads. *o ferrite “split” beads (two half beads) are installed on each

25-pair

cable just below the amphenol-type connector.

The beads help to reduce electromagnetic interference

(EMI) and radio frequency interference (RFI).

NOTE: Each ferrite split bead, which is actually half of

a full bead, is ordered individually (see REPLACEMENT PARIS for the part number). Two split beads are

required to form one complete bead.

2.8

spans are terminated on telephone company

RJ4gC modular jacks (or on RI-type blocks that are then

cross-connected to modular jack assemblies), as required by FCC regulations. Four-pair, non-reversing,

SPECIFICATIONS

Issue 1, November 1994

mod-to-mod line cord is used to

connect

each Tl span directly to the Tl jack on the corresponding Tl Card. (Or, to use the optional DB15 connector instead,

see

page 3-20.)

It is recommended that gas discharge tubes with silicon avalanche suppressors be installed on all non-T1 trunks for lightning protection. (For Tl spans, the CSU itself provides the lightning protection.) Also, in areas with frequent occurrences of lightning, it is recommended that the cable between the telephone company termination and the gas discharge tubes be at least 75 feet long (the cable may be coiled up if desired).

2.10 The 256 System has the following trunk characteristics:

Losshxx

CO to

keyset

CO to .single4ne set

cotoco

Ringer quivalenca

Ringing voltage Ring frequency Loop currcnt

l-$-to-ring

&m (@lLHz, 0 fL)

CUB (@lLHz 0 fQ odB @W-k 0 k)

0.6B 4ovRMs 17-63I-h 2chnAminimum

4OOV

minimum

transient

Page 2-5

SPECIFICATIONS

Issue 1, November 1994

IMX/GMX 256

INSTALLATION & MAINTENANCE

lNTER-TELPBAcIIcES

3. EQUIPMENT CABINET

EQUIPMENT CABINET DESCRIPTION

3.1 The 256 equipment cabinet houses the system

power supply, the Telecom Motherboard, a 17-slot card-

ftle

assembly, and the circuit cards, including: ROM Central Processing

(TlCs), E&M Cards (EMCs), (WCs), @KS&), Keyset

Line Cards (SLCs), and Inward Dialing Cards (IDCs).

3.2 Hquipment cabinet dimensions are as follows:

3.3 Together, the circuit cards in the equipment cabinet perform the switching activities for the system; detect incoming calls, process data-controlled features; control the interaction of station instruments, trunks,

and intercom calls; etc.

3.4 The system is a microprocessor-controlled, pulse code modulation

(TDM) system. Memory includes 512k bytes read-only

memory (ROM) and 512k bytes random access memory (RAM) on the ROM Central Processing Unit (RCPU) Card. In addition, each keyset contains a microprocessor that communicates via a Keyset Card with the microprocessor on the RCPU Card.

3.5 The 256 circuitry and software combine to produce an “integrated switching matrix” of 256 time slots (8 PCM highways Ibuses] x 32 time slots). Of the 256 time slots, 32 are reserved for conferencing and four are reserved for

coders are installed (up to four), additional time slots are also reserved. This leaves between 216 and 220 time

slots available for voice channels. (For a diagram of the system voice channel allocation, refer to Figure 2-l on page 2-7.) Therefore, the total number of

ingvoice

pending on the number of additional IYTMP decoders installed on the RCPU Card).

3.6 Whenever there is a change in the system’s circuit

card

one of the PCM highways (also called buses). The indi-

vidual circuits on each card may use only those voice

channels available on the assigned PCM highway. The

Loop Start Cards (LSCs), Digital Keyset Cards

Height Width 32.0 in. (81.3 an.)

Depth

Weight

- Empty

Loaded

FCJNCTIONAZ

MMP

channels available ranges from 216to 22O(de-

con&uration,

Unit (RCPU)

Cards

(KSCs

26.0 in. (66.0 cm.)

23.0 in. (58.4 cm.)

98 lbs. (44 kg.)

146 lbs. (66 kg.)

DESCRIPTION

(PCM),

time-division multiplex

decoders. If additional

all equipped cards are assigned to

Card, Tl Cards

Loop/Ground Start Cards

KSC-Ds), Single-

M’MF

non-block-

de-

software automatically distributes the cards to best possible use of the available voice channels.

3.7 If there is a large mrmber of cards installed, two or more cards may be assigned to the same PCM highway.

The voice channels on each PCM highway are then allo-

cated to the assigned cards for outside calls, intercom calls, and pages on a first-come, first-served basis. Since each two-way conversation requires two voice channels, the maximum number of simultaneous two-way conversations available ranges from 108 to 110.

3.8 If, on a single equipped than there are voice channels, there is a remote possibility that all the voice channels could be in use at one time (see Figure 2-l on page

a user attempting to place a call or page hears reorder

tones and must try again (the system also generates an

error message to indicate that no voice channels were available). Generally, a voice channel will be available

on the second attempt. NOTE: It is possible to equip more ports than there are

available voice channels, especially when installing a

number of Tl spans, single-line sets, digital keysets, or

8-line

IMX AIM keysets installed two to a circuit. (In

fact, the programmer can equip up to 256 ports.) For total non-blocking applications, it is necessary to limit the number of circuit cards installed in the cabinet. (Refer to

PROGRAMMING, page 5-172, for information on des-

ignating certain circuit cards as non-blocking and gen-

erating voice channel allocation data for

analysis.)

3.9 As many as nine external paging ports can be used

for

comtecting

Each external paging port requires au available SLC,

LGC, or LSC circuit.

NOTE: When installing external paging equipment on an LGC or LSC circuit, use a paging amplifier that provides talk battery. When installing external paging equipment on an SLC circuit, use a paging amplifier that

DOES NOT

Usmg a pagmg amplifier

3.10 The 256 System has two music channels. If de-

sired, two different music-on-hold sources (port 1 and

port 2) maybe connected to the RCPU Card. By entering

a feature code, individual keyset users can choose to listen to background music from either of the two music sources. Internal users will also hear music selected source when on hold and when camped on. For outside callers, the source for the Music-On-Hold fea-

ture is assigned on a trunk group-by-trunk group basis.

PCM

highway, there are more ports

2-7).

external paging speaker equipment.

provide talk battery.

wrth

talk battery on an

make the

If this happens,

traffic

from

the

-\,

‘\

;;

..-

Page 2-6

INTER-TELPRACTIcEs IW4GMX

3.11

256

Il’iSTALLA’I’ION &

MAINTENANCE

The card slot on the far right (17th slot) of the cabinet is reserved for the RCPU Card. Other than that, any station or trunk card may be placed in any of the remaining 16 slots.

NOTE: Information on the type of card installed in each

SPECIF’I~~ONS

Issue 1, November 1994

card slot must be entered through database ruing. See page 5-170 in

3.12 The

Telecom Motherboard power cable, which

PROGRAMMING.

program-

comes alreadv installed in the equipment cabinet, connects the

systim

power supply to the Telecom Mother-

board.

FIGURE

32 voke

Channels Channels

52 voice

EOUIPMENT CABINET -5 PCM HIGHWAYS WITH 22 TIME SLOTS PER HIGHWAY

2-l.

S2Vdtcb

Channels

VOICE CHANNEL ALLOCATION

32VOkO

Channels

‘.

52 voice

Channels

VOICE CHANNELS

AVAILABLE

pq/n-

SAMPLE ALLOCATlON FOR ONE PCM HlGHWAY

NOTE: The above example shows a sample voice channel allocation for one PCM highway (voice bus) in a heavily-loaded equipment cabinet. The system has assigned one Card, and one Inward Dialing Card to the same PCh4 highway. If all three cards are designated as “blocking” in database programming, the 48 circuits will vie for the 32 voice channels on a first- come, first-served basis. If, however, the Tl Card is designated as “non-blocking,” the system will rebalance the cards so that the Tl Card is assigned to a highway that has no more than 32 equipped ports. (Refer to PRGG RAMMING, page 5-172, for information on designating certain circuit cards

as non-blocking and generating voice. channel allocation data for

tra5c

Page 2-7

Card, one Single-Line

analysis.)

SPECIFICATIONS

Issue 1, November

1994

IMX/GMX 256 IN-TION

INTER-TELPRACTICES

& MAINTENANCE

ENvrRoIvMENmL

REQUIREMENTS

3.13 The equipment cabinet and the station instruments require the following environmental conditions:

#OPERATlON

Temperature

(Cabinet) O”t0 4o”c

Temperature 32” to 113’ F -40” to 185” F

(Station Instruments) Relative Humidity 5% to 95% 5% to 95%

(Non-condensing)

AltiNde

32’ to 104” F

o”to 4Yc

up to

10,000 ft. Upto40,OOOR

(3,048 m.1

-40°t0185’F

-4WtOSS”C

40°t08S”C

(12,192 m.)

NOTE: It is recommended that the maximum operating temperature (as stated above)

Therefore, when

iustalling

never

be exceeded.

the equipment cabinet and station iustruments, allow a sufficient margin for error in case of air conditioning failure, routine mechanical maintenance, plant shutdown, etc. As a general guideline, if the conditions are suitable for office personnel, they are also suitable for all equipment and station instrument operation. A properly controlled environment will help to extend the operating life of the equipment.

3.14 While in operation, a fully-loaded equipment

cabinet generates approximately 1,000 British Thermal

Units (BTUs) of heat per hour. The maximum amount of

heat generated per individual station instrument is 6.8

BTUs

per hour.

NOTE: This information is provided so that any cooling needed to meet the proper environmental conditions (as listed in the chart) can be calculated.

D. SYSTEM POWER SUPPLY

3.15 The

system power supply is installed to provide

power to the circuit cards and to all stations. The power

supply itself is comprised of a metal chassis with various modules installed.

3.16 The power supply must have an isolated, dedicated,

10%12!5VAC,

HA,

57-63H2, single-phase corn-

mercial power source (for details, refer to the first NOTE on page 3-3 in INS’WLLAIION).

3.17 All systems are equipped with one Quad Module

(+5V, -5V, +12V, and

-12V)

and one Master 30V Module. Depending on the number and type of keysets installed, one or two Slave 30V Modules may also be needed (see the following paragraph for details). If any AC-ringing single-line devices are to be used, a

Ring

Generator Module must be installed. If any SLCs, IBCs,

LGCs, or EMCs are used, a

stalled.

KSCs, LSCs,

and

(Refer to REPLACEMENT

-48V

Module must be in-

TlCs

do not use

-48vDc.

PARIS for the part num-

bers of the various power supply modules.)

3.18 Based on the number of dual-circuit

AIM

keysets and

other-type

keysets

8-line

IMX

installed, the following chart can be used to determine the number of Slave 30V Modules needed. (The programming PC will also display a message if an additional module is needed.) If it is determined that two Slave 30V Modules are needed, a version C power supply chassis and version C power supply modules must be used (see paragraphs

3.21

and 3.22).

(S-line

AIhis

+ (digital

X 0.0755) +

keysets

X 0.060) =

(other analog keysets X 0.125)

If y ( 8, only the Master 30V Module is required.

Ify > 8, but ,( 16, one Slave 30V Module is

also required. Ify > 16, two Slave 30V Modules are also

required.

3.19

Located on the front side of the power supply chassis are the ON/OPP power switch, a 1OA or 15A fuse that isolates the AC power source from the system,

and the removable cover plate.

3.20

Located on the back side of the power supply chassis are the AC power cable, all of the connectors for the various power cables, and a grounding lug to connect the equipment cabinet to an earth ground.

Power Supply Modules

3.21

Currently, there are three versions of power sup

ply modules used on the 256 System: (A) part numbers

440.0102-0106, (B) part numbers 440.01% 0122, and (C)part numbers 440.0112- 0115. (Refer to REPLACEMENT PARTS for a complete list of the part numbers.)

3.22 Version A and B

power supply modules are com-

patible with each other, and they use the same chassis.

However, due to numerous design enhancements, ver-

sion C modules and chassis are not compatible with versions A

and

B. Either use all version A and B power supply modules and chassis, or use all version C modules and chassis.

Do not mix the two @pes.

Page 2-8

. . .

INTER-TELPRACTICES IM.X/GMX 256 INSTACLATION &

3.23

The version A Ring Generator Module has a 3

MAINTENANCE

amp fuse, while all other version A power supply modules have 6 amp fuses. Maximum power outputs for each version A module are shown below.

SPECIFICATIONS

Issue

1, November 1994

NOTE: For easier power supply module removal, each

version C power supply chassis is shipped with an extractor tool attached to the inside, front cover. The ex-

tractor tool may be used with version B and C modules

only.

MOOUE -48V MODUU

+NDc, 18A -48VDC, 5A

-WDC,

+12vDc,

MASTER

3.24

Except for the Quad Module

12VJ.X, .5A

+3ovDc, 8A

90VAC

Ring

Frequency, mI-k

SLAM

+3ovDc, 8A

NOR MODULE

0,2OW

(SA

fuse,

+WDC

output of 23A, and +12VDC output of 4A), version B

and C power supply modules have the same fuses and maximum power outputs. Also, there is only one version C 3OV Module, which can be used as either a master or a slave.

Voltage

3.25 To reduce the effects of

Sutge

and Spike Protection

AC voltage surges

and spikes that may cause system malfunctions, false logic, and/or damage to the electronic components, a surge/ spike protector is provided. (Refer to REPLACEMENT PARTS for the part number.) Its specifications are:

Clamp voltage transients at 300VDC within 5 nanoseconds when exposed to waveforms as described in the ANSI/IEEE Standard C62.41-1980 (IEEE 587).

Reduces RFI/EMI noise by at least 20dB at frequencies between &I-Ix and 3OMHz.

Battery Back-Up

3.26 To provide back-up power in the event of a power failure or brownout condition, the power supply can have optional battery back-up using a customer-provided

uninterruptable

power supply (UPS) unit or a standby power supply (SPS) unit. Refer to page 2-32 for more information.

Page 2-9

SPECIJ?ICATIONS

Issue

November 1994

IMX/GMX

256 INSTALLATION & MAINTENANCE

INTER-TELPRACTICES

E. CIRCUITCARDS

3.27 In addition to the power supply, the equipment cabinet houses the Telecom Motherboard and the circuit cards that control and coordinate the functions of the

system. Up to 17 cards may be connected to the Telecom

Motherboard, including:

m l-16,

KcysctCard(DKSC,KSC,orKSGD)-atlcastoneis

1-W 1-W

1-W

l-15’ l-15 l-4

328

=w=l

siiglc!-Line card

Inward Dialing Card @DC)

LoopF3round

Ltwpslartcard(Lsc)

=Q=d(EMc) Tl

Card

Refer to page Z-21 for station capacities.

(SLq

Start Card (LGC)

VlC)

Descriptions of the cards are given in the follow-

ROM central promsing unit

(RCPU) card -

rquircd

ing paragraphs. Drawings of the cards are located in the

INSTALIA-ION

ROM Central Processing Unit

3.29

The RCPU Card contains the main controlling

IIlicroprocesso

section.

(RCPU)

Card

r and associated control logic and memory circuits. It is under the control of a program, stored in the ROM, which is activated when the system

is powered up. ROMs containing the system software are installed on the RCPU Card before it is installed in

the equipment cabinet.

330

The RCPU Card contains the following system

resources:

lb0

RS-232-C (DB9)

connectors (g-pin subminiature “D” male connectors) for connecting SMDR/

SMDA

output devices and/or a personal computer for programming the system database (see page 2-31 for requirements).

Voltage test points

for checking the system

+WDC,

-5vDc, +12vDC, -12vDC, +3ovDC, -4WDC,

and AC ring voltage levels. To measure system voltage levels, voltmeter probes are

iuserted

into the ground test point and the desired voltage test point. Refer to

INSTXLATION,

page 3-45, for details.

Reset

switch

is used to manually reset the system

during troubleshooting. This is a software reset

(mi-

nor reset), not a hardware reset (major reset). Pushing this switch does the following:

Preserves the battery-backed database iuforma-

tion, non-conference calls in progress, outside calls being dialed from keyset stations, inter-station messages, calls on individual hold, do-not- disturb messages, and reminder messages. A call on system hold is changed to individual hold at the station that placed it on hold.

Restores

MMF

decoders, modem access, and

speech channels, and resets the station clocks to

match the system clock. Updates trunk key, DSS/

BLF

key,

speeddial

key, and feature key lamp

SMUS.

Interrupts system operation, which disconnects

pages in progress, calls ringing in, calls using the conference resources (as described on the next page), and calls using DTMF decoders. Camped- on calls are disconnected and queue requests are canceled.

Terminates system and user programming.

Database back-up battery

(3.6V, HAA

lithium

battery) that can support the database for at least two months of accumulated system down time.

Battery voltage test points and check button for

checking the database back-up battery charge. If the battery voltage is not greater than 2.!WDC, replace the battery.

Rattery

back-up jumper strap for activating the

database back-up battery. The jumper strap should be placed in the ON position (over the top two pins) before the RCPU Card is installed. When the card is taken out of service for repair or storage, the jumper strap should be placed in the OFF position (lower two pins) to preserve the battery charge.

NOTE: Placing the

BmRY

jumper strap in the

OFF position erases the database.

Male

50-pin amphenol-type

necting up to two music sources, a power failure

connector for con-

transfer relay, and a general purpose relay:

“:,

LED

indicators

show main processor operation (CPU ACTIVE), major system alarms (MAJOR ALARM), minor system alarms ALARM), database error occurrences

(h4lNOR

(DAlXBASE

ERROR), database back-up battery connection

(BAZTERY OFF), high power supply temperature

(POWER ALARM), and external clock activity (EXTERNAL CLOCK ACTIVE). Refer to TROUBLESHOOTING for detailed LED information.

Page 2-10

Up to two external music sources (such as radios, tape players, etc.) may be connected to the

RCPU Card. AGC circuits on the RCPU Card au-

tomatically hold the volume of each music

source to a predetermined level that is slightly lower than the normal voice volume, as required by FCC regulations. Optimal input level is

0.775VRMS (OdB). For installation instructions, see

page 3-99.

,-J

i, ;:

INTER-TELlPRACTICES

IMX/GMX

256 INSTALLATION & MAINTENANCE

Relay 1, which is the power failure transfer relay

(and cannot be changed),can be used to connect one or more single-line sets to predetermined CO trunks in the event of processor card failure or a power failure. (If ground start trunks are used, the single-line set must be equipped with a

ground start button.) The output is a normally-

open DPDT relay that is held closed during system operation. Additional equipment needed includes a customer-provided PFT relay card and card mounting case. The RCPU Card relay contact ratings are listed below. (See also page

2-32.)-

REICARD

0.6A

at 125VAC

0.6A at

1lOvDC

2.OA at 30VDC

Relay 2 can be used to activate an external sig-

naling device when a call rings in on assigned

CO trunks. The dry contacts follow the normal

keyset CO ringing cycle (two seconds on/four se-

conds off). Ring in for the relay can be programmed for day and/or night modes.

Or, relay 2 can be used for night switch to turn on or off lights, an alarm system, or other devices. The relay, which is activated when an attendant

in the designated tenant group places the system

night mode, causes the swing connection to

move from the “break” to the “make” position. Or, relay 2 can be used for activating external

paging. The relay, which is activated when the paging zone to which it is assigned is accessed by

a station user, causes the swing connection to move from the “break” to the “make” position. This contact can be used to activate the microphone input of an externally-mounted paging

amplifier.

Music-on-hold (MOJX) jumper

straps for enabling

one or both of the external music sources that are heard by callers when they are placed on hold or camped on. If connecting an external music source, place the associated jumper strap in the ON position

(over the top two pins). Then, in the database, each trunk group can be assigned music port 1, music port

2, silence, or tick-tones. Refer to PROGRAM-

MING, page

300~baud

mote progr

5-103.

and

1200~baud

modem interface for re-

amming. When the system is in the de-

SPECIFICATIONS

fault

contiguration,

Issue 1, November

the

300-baud

Bell modem is

1994

assigned extension number 270, the 12OO-baud Bell

modem is 271, the 300-baud CCITT modem is 272,

and the 1200-lbaud CCI’IT modem is 273. Any attendant can transfer a call to the modem, or it can be accessed directly using DISA.

Conferencing resources

for connecting up to 32

parties in multiple conferences. There can be up to

10 simultaneous three-way conferences or four si-

multaneous eight-party conferences. Except for the

fact that there can be only eight parties involved in a single conference, any combination using the 32 dedicated conference circuits is possible. The con- ferencing resources also support the Call Forward, Call Transfer, Station Call Monitoring, and DISA features when two trunks are connected. Conferenc- ing utilizes a zero dB loss function so that there is no substantial loss in voice volume no matter howmany

people are in the conference.

DTMF decoding circuits

(four) are used when single-line sets are dialing and when features such as DISA and Automated Attendant are used. They are also used for the Unsupervised CO Call Continuation feature (as described in paragraph 4.88 on page

4-37).

These four decoders convert DTMF signals to the digital codes used by the system. They are in use only while the dialed number is beii processed, not for the duration of the call. If all four DTMF decoders are busy, the user may camp on.

NOTE: If necessary, up to four additional DTMF decoding circuits can be added to the RCPU Card by installing

lYIMF

Expansion Chips (two chips per circuit; four chips per kit). Refer REPLACEMENT PARIS for the part number.

Tone generating circuit generates DTMF tones

whenever needed by the system (for example, when a station user uses one of the system auto-dial features, such as LCR, Call Forward To The public Network, Station or System Speed Dialing, etc.). The circuit is also used to produce all of the system tones (busy, reorder, do-not-disturb, etc.) heard by digital

keyset, single-line set, DISA, and automated atten-

dant users. (Analog keysets generate their own sys-

tern tones.)

A-law/mu-law jumper strap for choosing the

method of encoding sampled audio waveforms used in pulse code modulation systems. Domestic telephone companies use the mu-law method. The a-law method is widely used outside of North America.

Page 2-11

SPECIFICATIONS

Issue 1, November 1994

IMX/GMX 256 INSTALLATON &

lNTER-TELPRACTICES

MAINTENANCE

4 Keyset

Cards

Single-Line Cards

331

Station instrnments are connected to the station

(DKSCs, KSCs,

(SLCs)

or KSC-Ds) and

cards in the equipment cabinet. Digital keysets are con-

nected to Digital Keyset Cards. Analog keysets, analog

DSS/BLF Units, and Attendant Computer Consoles are

connected to

(ESLSs),

Keyset

Cards. Enhanced Single-Line Sets

Single-Line Instruments

(SLIs), industry-

standard single-line DTMF sets, and playback devices are

uxmected

to either Single-Line Cards (AC-ringing instruments only) or Inward Dialing Cards (AC or DC). For more

infoimation

on Inward Dialing Cards, refer to

page 2-15.

332

Digital

Keyset

Card (DKSC):

vides up to 16 circuits for connecting digital

Each DKSC pro-

keysets.

Each circuit has a self-correcting thermistor to protect the system from damage due to a short circuit in the station cabling. If a short circuit causes a thermistor to open, it will automatically close when the short is removed.

3.33 Up to 50 digital keysets may be equipped with up to four digital DSS/BLF Units each. The units are connected in series to the PC Data Port Module (PCDPM) on the back of the corresponding keyset. Unlike analog units, digital DSWBLF Units do nor require station cabling separate from the keyset’s cabling; instead, they are

334

Each DKSC has a green LED (CARD ON-LINE) to indicate the card’s functional readiness and 16 green

LEDs

(CIRCUlT

BUSY) to indicate whether any circuit

on the card is busy (see Figure 3-30 on page 3-48).

3.35

Each

DKSC

comes equipped with one Digital Signal Processor (DSP) that provides resources for up to 12 shared speakerphones. If desired, a second DSP can

he installed to provide an additional 12 shared speakerphone resources.

NOTE: For information on using shared speakerphones

for digital

3.36

keysets,

Keyset

see page 4-40 in

Card

(KSC

FEAWRES.

or KSC-D): Each KSC (or

KSC-D, see the following note) provides up to eight cir-

cuits for connecting analog

keysets,

analog

DSS/BLF

Units, and Attendant Computer Consoles to the system.

Up to 50 KSC circuits can be used for installing analog

DSS/BLF Units. As many as four analog units can be

connected to a single card. Some

KSCs

have a

2A, 25OVAC, AGC 2 (fast-acting) fuse to protect the system

from damage due to a short circuit in the station cabling. Newer version KSCs have eight self-correcting thermistors (one for each circuit) instead of the fuse. If a short

circuit causes a thermistor to open, it will automatically close when the short is removed.

NOTE: To install any

circuit,

the new “dual-circuit” version

&line

IMX AIM keyseta nuo to

Keyset

Card (KSC-D) must be used (see REPLACEMENT PARTS for the part number). To install

to a

cinxir, either the KSC or the KSC-D can be used.

337

Each KSC has an LED (CARD ACTIVE) to indi-

cate the card’s functional readiness. In addition,

8-line

AIM keysets one

eachin-

dividual circuit on each card has an LED to indicate the circuit’s activity (lit green) or failure (lit red).

3.38

Single-Line Card (SLC):

SLCs

are used for

connecting AC-ringing ESLSs, SLIs, single-line DTMF sets, and playback devices. They can also be used for connecting external paging equipment. Off-premises stations cannot be legally connected to SLCs; instead, Inward Dialing Cards (IDCa) must be used (see page

2-15). Some SLCa have a fuse to protect the

put. Thisfuse

cannot be

qdaced

thefield

-48V

out-

If the fuse

is defective, the entire card must be sent in for repair. Newer version SLCs have a self-correcting thermistor instead of the fuse. If a short circuit causea a thermistor to open, it will automatically close when the short is removed.

NOTE: For optimal performance, it is recommended that voice mail units and automated attendant playback devices be installed on IDC circuits rather than SLC circuits. Doing this mutes any DTMF digits automatically dialed by the system (e.g., those generated when tran- sferriug or forwarding an outside caller to voice mail).

339

Each SLC has an LED

(CARD

ACTIVE) to indicate the card’s functional readiness. In addition, each individual circuit on each card has an LED to indicate the circuit’s activity (lit green) or failure (lit red).

3.40

Station configuration: Station instrument con-

figuration depends on the number and type of station cards installed in the equipment cabinet. There can be any combination of station cards allowing combinations of keysets in eight-station increments (or 16-station increments if using digital

IMX

AIM

keysets)

keysets

&line

dual-circuit

and single-line sets or playback

devices in increments of 16 (using SLCs) or in increments of eight (using IDCs).

NOTE: At least one KSC-D)

~ULR

be installed to provide an attendant

Keyset

Card

(DK!X,

KSC, or

(equipped with a display keyset or an Attendant Computer Console) that can receive system alarm messages, program system data, act as the attendant for unsupervised CO recalls, etc.

3.41

Each station card circuit is assigned a hardware

address number according to the card’s slot in the equip

-\. /

Page 2-12

INTER-TELPlGKTICES IMX/GMX

256 IN-TION & MAINTENANCE

SPECIF’ICA~ONS

Issue 1. November 1994

ment cabinet and the location of the circuit on the card. For example, circuit 1.2 is the second circuit on the first card installed in the equipment cabinet.

NOTE: In the default database configuration, there are no keyset circuits assigned for

AIM keysets

1.2B).

3.42 When the system is first powered up, the default configuration is used to assign extension numbers to the station circuits. On IMX 256 Systems, card slots l-4 are considered KSCs or KSC-Ds, slots 5-6 are DKSC!s, slots 7-g are unassigned, slots 9-12 are

13-16 are LGCs. On GMX-256 Systems, card slots are considered KSCs or KSC-Ds, slots 9-12 are SLCs, and slots 13-16 are LGCs. Changes to the default con-

figuration can be made through database programming.

installed two to a circuit (e.g.,

8-line

dual-circuit JMX

SLCs,

1.2A

and

and slots

l-8

Refer to PRGGRAMMIN G, page 5-170, for more in- formation.

3.43 The system assigns extension number 100 to station circuit 1.1, extension number 101 to station circuit

1.2, and so on to match the initial configuration. Circuit

1.1 is equipped as the primary attendant’s keyset when the system is in the default configuration. If desired, the circuits can be assigned different extension numbers and/or four-digit extension numbers through database programming. Refer to for more information.

NOTE: When

dual circuits, the “B” circuits do not have extension numbers until they are assigned in database program-

ming-

8-line

PRGGWWMJN

IMX AIM keysets are assigned to

G, page 5-58,

Page 2-13

SPECIFICATIONS Issue 1, November 1994

IMX/GMX 256

INSTALLATION & MAINTENANCE

INTER-TELPRACTICB

Loop/Ground ~~a.=3

3.44 Each LGC and

Start Cards

LSC

(LGCs)

and Loop Start

has circuitry for up to eight trunks. LGC and LSC circuits may also be used for installing external paging equipment. LSCs can only have loop start trunks connected to them. LGCs can have either loop start or ground start trunks. Each individual circuit on the LGC has two

jumper

straps for designating whether the circuit is loop start or ground start. Individual trunks may be designated as either loop start or ground start in database programming.

NOTE: For each LGC circuit, both jumper straps must be in the proper (LS or GS) position. If the strap settings are mixed, or if one or both of the straps is missing, the circuit will not function properly. Also, when setting the straps, note the unique ordering of the LGC circuits as shown in Figure 3-34 on page 3-55.

3.45

For optimal CO trunk transmission performance, each LGC and LSC circuit should be “hybrid balanced” in database programming. Hybrid balancing refers to selecting the balance network - ideal, loaded, or unloaded

-that best matches the trunk’s impedance. Re-

fer to PROGRAh4MlN

G, page 5-147, for details.

3.46 Should voice transmit or voice receive volume problems occur, the receive gain

and/or

the transmit gain for individual trunks can be adjusted in database programming. Refer to PROGRAMMIN

G, page 5-103,

for additional information.

3.47 Each LGC

and LSC has 16 speciallydesigned fuses soldered to the card to protect it from large voltage surges due to lightning. If a fuse is open (blown), it may mean that other parts of the card have also been dam-

aged. For this reason, open fuses must not be replaced in the field. Instead, the entire card must be returned for testing and possible repair. Failure to follow this policy will void the warranty on the card.

3.48 When the system is in the default configuration, all trunks are configured for M’MF signaling. If necessary, some or all of the trunks can be reprogrammed for dial-pulse signaling through database programming. Although both the LGC and the LSC can use dial-pulse trunks, the pulse circuitry on the LGC is more sophisti-

cated and may provide better performance in

certainsit-

uations.

NOTE:

Single-line sets generate their own

MMF

tones when dialing. If used on dial-pulse trunks, both the

DTMP tones generated by the phone and the dial-pulse

signals generated by the system are sent to the central office, which may be a problem if the central office rec-

ognixes

both. To avoid this problem, single-line sets should be restricted to LCR only when using dial-pulse trunks. Then, only the LCR-generated dial-pulse signals will be sent to the central office.

3.49 With loop start trunks, it is sometimes possible

for the user to attempt to place an outgoing call and

instead be connected to an incoming call on the same trunk. This unintended connection, called glare, is due to the natural switching delay characteristics of the telco

equipment and the system. Previously, if the user did not dial a valid outside number, the glare connection was dropped. The software now allows the incoming call to remain connected, while still protecting against possible toll fraud. A new system-wide programmable op tion, called Drop Incomplete Outgoing Calls, has been

added to the Miscellaneous System-Wide information

screen, as shown on page 5-67 in PROGlWMMING.

3.50 The CO circuits are assigned hardware address

numbers according to the card’s slot in the equipment

cabinet and the location of the circuit on the card. For

example, when using the initial configuration (see para-

graph 3.42), CO circuit 13.4 is the fourth circuit on the

13th card (an LGC) installed.

351

When the system is in the default

confi~ation,

the first four trunk keys on each keyset are assigned as call keys for incoming call indication/access.

Qhe

AN-

SWER key may also be used to access incoming calls.) No individual trunk keys or trunk group keys are assigned. Key assignments can be designated in database programming. Refer to PROG

RAMMING, page 5-44,

for more information.

3.52 CO trunk groups may be assigned on a tenant-by- tenant basis. Up to 47 CO trunk groups can be distributed among the tenant

grouPs.

Refer to

FEAWRES,

vage 4-15. for more information.

Page 2-14

INTER-TELPRACTICES IMX/GMX

256

INS~TION

MAlNTENANCE

SPECIFICATIONS

Issue 1, November 1994

Inward Dialing Cards

353

IDCs are used for connecting direct inward dial-

(IDCs)

ing (DID) trunks and off-premises single-line stations. Like SLCs (described on page 2-12), IDCs may also be used for connecting on-premises single-line sets and playback devices. In fact, for optimal performance, it is recommended that voice mail units and automated attendant playback devices be installed on IDC circuits rather than SLC circuits. Doing this mutes any DTMF digits automatically dialed by the system (e.g., those generated when transferring or forwarding an outside caller to voice mail).

NOTE: IDCs do not support message waiting applications. If single-line sets with message waiting lamps are installed on IDCs, the lamps will not function.

3.54 On older-version IDCs, each IDC circuit has a 2-pin AC ENABLE jumper strap that must be removed when installing a DID trunk or a DC-ringing station. AC-ringing off-premises stations can be connected directly to IDC circuits provided that both the optional

-48V

Module and the optional Ring Generator Module

are installed in the power supply chassis

(external

HVRA Units, power supplies, and ring generators are not needed).

3.55 On newer-version IDCs, each IDC circuit has a 3-pin RING SELECT jumper strap that must be set in

either the AC/OPX position (over the bottom two pins)

or the DC/DID position (over the top two pins).

NOTE: When setting the jumper straps on either ver-

sion card, note the unique ordering of the IDC circuits as shown in Figure 3-33 on page 3-53.

3.56 Each IDC can have up to eight DID trunks or up to eight single-line sets, or any combination of the two.

357

DID trunks may be programmed to ring in to in-

dividual stations, multiple stations, or hunt groups. Or,

they may be programmed

ring in as

DISAcalls.

Ifpro- grammed to ring in at a single station, the DID call will follow any programmed forward.

3.58 DID trunk groups may be assigned on a tenant- by-tenant basis. Up to 11 DID trunk groups can be distributed among the tenant groups. Refer to

FEAWREB,

page 4-15, for more information. Also, DID trunk groups maybe designated as immediate start, wink start,

or delay start in database programming.

3.59 Each IDC has 16 specially-designed fuses sol-

dered to the card to protect it from large voltage surges due to lightning. If a fuse is open (blown), it may mean that other parts of the card have also been damaged. For this reason, open fuses must not be replaced in the field. Instead, the entire card must be returned for testing and possible repair. Failure to follow this policy will void the warranty on the card.

Page 2-15

SPECIFICA~ONS

Issue 1, November 1994

IMXfGMX

256

INSTAT.,LATION &

INTER-TEL+PRAcTKEs

MAINTENANCE

E&M Cards

3.60

(EMCs)

E&M trunks, also called “tie” lines, are special trunks that tie individual telephone systems together. They allow the users of either telephone system transparent access to the users and resources of the other telephone system, often for less than what it would cost to use normal long distance service.

3.61 E&M (literally “ear” and “mouth”) refers to the pair of wires that carry the signals between the trunk

equipment and a separate signaling unit. The M lead

transmits a ground or battery condition to the signaling equipment, while the E lead receives open or ground signals from the signaling equipment.

3.62

If designated for “auto ring-in,” E&M trunks may be programmed to ring in to individual stations, multiple stations, or hunt groups on the other telephone system. (If programmed to ring in at a single station, the

E&M call will follow any programmed forward.)

3.63 If designated for “dial repeating,” E&M trunks may be programmed to ring in as DISA calls.

3.64 Additionally, LCR may be used to turn what would normally be a long distance call into a local call. For example, when a call is made from one telephone system to a long distance number that is local to the other telephone system, LCR could be programmed to route the call through the E&M network to make a local

call from the other telephone system.

cannot be hybrid balanced). Hybrid balancing refers to selecting the balance network - ideal, loaded, or unloaded -that best matches the trunk’s impedance. Refer to PRGGRAh4MlN G, page 5-147, for details.

3.68 Should voice transmit or voice receive volume problems occur, the receive gain and/or the transmit gain for individual E&M trunks can be adjusted in database programming. Refer to PROGRAMMING, page S-103, for additional information.

3.69 Each EMC has 24 speciallydesigned fuses soldered to the card to protect it from large voltage surges due to lightning. If a fuse is open (blown), it may mean that other parts of the card have also been damaged. For this reason, open fuses must not be replaced in the field.

Instead, the entire card must be returned for testing and possible repair. Failure to follow this policy will void the warranty on the card.

3.70 When the system is in the default configuration,

all E&M trunks are configured for IYI’MF signaling and

dial repeating. If necessary, some or all of the trunks can be reprogrammed for dial-pulse signaling and/or auto ring-in through database programming.

3.71 The

E&M circuits are assigned hardware address

numbers according to the card’s slot in the equipment

cabinet and the location of the circuit on the card. For example,

E&M

circuit 13.4 refers to the fourth circuit on the 13th card (an EMC) installed in the equipment cabinet.

3.65

Each EMC has circuitry for up to four E&M

trunks. Each individual circuit on the EMC has two

jumper straps, one for selecting the signaling type

(1,2

4, or 5) and one for selecting the audio type (2-wire or

4-wire).

The signaling and audio type for each circuit

must also be programmed in the database.

3.66 Although not currently operational, the EMC is equipped with a “make-busy” switch for removing all circuits on the card from service and placing them back in again, The switch is reserved for possible future use.

3.67

For optimal E&M trunk transmission performance, each 2-wire EMC circuit should be “hybrid balanced” in database programming

(4-wire

circuits

3.72 When the system is in the default con.&uration, the

lirst

four trunk keys on each keyset are assigned as call keys for incoming call indication/access. (The ANSWER key may also be used to access incoming calls.)

No individual E&M trunk keys or trunk group keys are

assigned. Key assignments can be designated in database programming. Refer to PROGRAMMING, page

5-44,

for more information.

3.73

E&M

trunk groups may be assigned on a tenant- by-tenant basis. Up to 47 E&M trunk groups can be distributed among the tenant groups. Refer to

FEAWRES,

page 4-15, for more information. Also, E&M trunk groups may be designated as immediate start, wink start, or delay start in database programming.

,’

Page 2-16

NOTE: The acronym for the Tl Card not be confused with the special tem (which operates at twice the data rate of the standard

carrier system). The 256 Tl Card does not support

TlC.

3.74 The term “Tl” refers to a specific digital method of transmitting voice and data; it is the basic 24-chamtel time-division multiplex (TDM), 1.544 Mb/s pulse code modulation (PCM) system as used in the United States.

3.75 The Ti standard, which was developed as a method of reducing cabling and increasing transmission quality between distant central offices, is actually a subset of a multi-level Digital Signal (DS) scheme. Inpopu- lar usage, Tl refers to the type of media (e.g., copper wire, fiber optics, or microwave).

3.76 Since each Tl span actually consists of 24 individual circuits (or channels) multiplexed together, it is often less expensive to purchase a single Tl span than it is to purchase multiple individual trunks. Each of the 24

circuits can be programmed as a loop start, ground start, DID, E&M, or OPXtrunk (or as unequipped). Any combination is possible.

3.77 “Fractional” service where only a portion of the 24 channels are used

and paid for. To implement fractional Tl (if available), equip only those circuits that are provided.

NOTE: Currently, the Tl Card is used to transmit voice signals only, not data. In the future, data transmissions

over Tl circuits may also be supported.

3.78 To interface with the public network, each Card must be equipped with a customer-provided, on- board Channel Service Unit (CSU) or a customer-provided, external CSU. If the optional on-board CSU is installed, the programmer must select the line build-out

(LBO)

attenuation, which is determined by the distance to the nearest public network Tl repeater. (This information is available from the Tl provider.) If an external CSU is installed instead, the programmer must select the DSX-1 line length, which is determined by the distance from the Tl Card to the external CSU. (The card

and the external CSU must be located in the same building, and the cabling between them must be less than 655 feet.)

NOTIG

directly from Inter-Tel using part number 440.3004.

3.79 public network, it is possible to use Tl Cards to connect two telephone systems together (e.g., two 256 Systems).

The on-board CSU can now be purchased

Although most Tl interfaces will be with the

DSl

Tl,

often called

rate as transmitted via any

-TlC

TIC

digital carrier sys-

Ffl,

is a special

-should

SPECIFICATIONS

Issue 1. November 1994

To do this without CSUs, the two systems must be lo-

cated in the same building and the cabling between them must be less than 655 feet. If each system is equipped with a CSU, they may be located in separate buildings

and the cabling between them may be as long as 6000

feet. (See page 3-34 for more information on connect-

ing two 256 Tl Cards together.) NOTE: For information on programming various types

of Tl installations, refer to pages 5-122 to 5-129.

3.gO

In the future, a Tl span could possibly be used to connect the 256 System to a host computer via a digital multiplexed interface been designed to interface with the coming Integrated

Services Digital Network (ISDN) features, when available.

3.81 When a Tl span is used to connect a 256 System to the public network or to another telephone system, it is important that the two endpoints communicate at the same frequency. Since it is practically impossible for both endpoints to have clocks running at identical

quencies, one endpoint is given “master” clock status

and the other endpoint is given “slave” clock status. The slave clock can then extract and lock onto the master clock frequency from the incoming Tl information. This master/slave synchronixation is programmed in the

.database. When connected to the public network, the

256 System is automatically designated as the slave clock.

3.82 When information (currently, voice only) is transmitted over a Tl span, a “framing” bit is added so that the receiving end can recognize where the information begins and ends (as long as the clock circuitry of the

two endpoints is synchronized). Currently, the 256 System supports the two major types of framing schemes in

use today: D4 Super&me, which is the most common,

and Extended Superframe @SF), which is required to

support future ISDN and DMI features. For missions, D4 Superframe is quite adequate. However,

for data transmissions (not currently supported), ESF is much more reliable and efficient.

383 Digital information is transmitted over the span as a series of 1s and 0s (e.g., .

OOOL..). Tl

To prevent this, Tl carrier equipment limits the number

of consecutive zeroes. The 256 System supports the two major types of xero code suppression schemes in use today: Alternate Mark Inversion bit-7 stuffing, and Bipolar Eight Zero Substitution

@QS).

adequate. However, for 64 kb/s clear channel data transmissions (not currently supported), BSES is required.

If there are too many consecutive zeroes, the

clock extraction circuitry will not operate correctly.

Again, for voice transmissions,

@MI).

Also, the Tl Card has

..lOOO

(AMI),

voice

trans-

000 0000

also called

AMI

is quite

fie-

Page 2-17

SPECIFICATIONS

Issue 1, November

1994

IMX/GMX 256lNSTALLATlON

INTER-TELPBACTICES

MAlNTENANCE

3.84 Like the

repeater distance, the framing scheme type and xero code suppression scheme type are also available from the Tl provider. In fact, when ordering a Tl span, always request the following information from the Tl provider:

Framing scheme: D4

- Zero

code suppression scheme:

the

optional

tance from

repeater (for determining the line build-out attenuation): O-1599 feet

the

(7.5dB), or 3OO&6000

3.85

Each

TlC

has circuitry for up to 24 trunk chan-

Superframe

on-board CSU is to be inshlle~

MDF

neBrpsf

public

(15dB),

or ESF

AMI

B8ZS

networkTl

1600-2999 feet

feet (OdB)

dis-

nels. The 24 channels (or circuits) can be any combina-

tionofloopstarttru&,groundstarttnmks,DIDtrunks,

E&M trunks, or OPX trunks.

3.86 The Tl Card itself is equipped with the following resources:

LED indicators are

provided to show the status of each circuit and to show Tl trunk alarms and board- level error occurrences. Refer to the

TROUBLE!-

SHOOTING section of this manual for additional LED information.

Audio jack (8-pin, a-conductor modular jack) for

possible future use. NOTE: The audio jack is currently used for engi-

neering diagnostic purposes only.

Alarm relay jack

@-pin, 8-conductor

modular

jack) for connecting optional Tl alarm signaling de-

vices. The Tl Card relay contact ratings are:

I= RF’ PY

l Serial port jack

CONTA~

0.6A

2.OA

at 30VDC

125VAC

1lOVDC

RATINGS

@S-232-C, g-pin,

&conductor

modular jack) for possible future use.

NOTE: The serial port jack is currently used for engineering diagnostic purposes only.

l Tl span jack

jack)

for connecting a single, 24-channel Tl span to

(RJ4SC,

g-pin, 8-conductor

modular

the Tl Card. (If this jack is used, do not use the optional DB15 connector also provided on the card.)

NOTE: All Tl spans should be disconnected from their cards before turning the system power on or off.

l Dual bantam jack(with transmit and receive audio

ports) for connecting Tl test equipment to the

Card and monitoring the transmit and receive signals.

CAUTION

When a live Tl span is installed on the Tl Card, test

equipment should be used for monitoring purposes only. Do not attempt to send signals over either the transmit or receive audio ports on the Tl Card if a

span is installed. Also, be sure the test equipment is set in the “bridge” mode.

Optional Tl span DB15 connector

(15-pin

sub miniature “D” female connector) for connecting a single, 24-channel Tl span to the Tl Card.

NOTE: In certain situations (e.g., when using an external CSU equipped with a DB15 connector), it may be more convenient to use the optional DB15 connector instead of the standard RJ48C jack also provided on the card.

Make-busy switch with LED for removing all cir-

cuits on the card from service and placing them back in again. Pressing the switch will light the LED and begin the process of “busying out” each circuit not in use. The circuits that are in use are then busied out as soon as the users hang up. When all circuits are busied out, the make-busy LED and all 24 circuit

LBDs

flash slowly, and the card can be removed

from its slot in the cabinet.

Ifthe

card is not removed within a certain amount of time, a programmable timer expires and the card returns to normal operation; however, the make-busy LED will then flash rapidly until the make-busy switch is released.

Channel Service Unit

ing the optional on-board CSU Module. If the

(CSU)

connector for install-

Card interfaces with the public network, either the on-board CSU Module or an external CSU must be connected to the card.

0 DSXKSU j&per

plug

for indicating whether the on-board CSU is installed. If the on-board CSU is installed, place the jumper plug in the CSU position. If there is no on-board CSU, place the jumper plug in the DSX position. This information must also be programmed in the database.

Line build-out jumper plug

for selecting the proper line build-out (LBO) attenuation of the Tl span connected to the card. This selection is necessary only if the optional on-board CSU is installed. If the dis-

tance between the equipment cabinet and the closet public network Tl repeater is less than 1600 feet, place the jumper plug in the 15dB position. If the distance is between 1600 and 2999 feet, place the jump

er plug in the 7.5dB position. And, if the distance is

Page 2-18

INTER-TELPRACTIcEs

l.MX/GMX 256

between 3ooO

INSTALLATION & MAINTENANCE

and 6000 feet, place the jumper plug in the OdB position. This information, which can be obtained from the Tl provider, must also be programmed in the database.

387

Compared to the other trunk cards in the system, the Tl Card is very sophisticated and offers some unique programming options. The information that is pro-

grammed comnwn to all Tl

Cads installed in the sys-

tem includes:

- Dialing

feedbackconfiguration: When a number is

dialed over a Tl circuit, the user hears the feedback from the signals (either M’MF or dial-pulse, depending on how the circuit is designated). By adjusting the

M’MF

gain control or the dial-pulse gain control (from -15dB to 15dB), the programmer can determine how loud the signals appear to the user. If the circuit is designated for dial-pulse signaling, the programmer can also select the type of dial-pulse tone the user hears (23 different tones are available).

Error thresholds: The

cal thresholds (number per hour and

programmer can set muneri-

number

per day) for certain Tl Card errors. If a threshold is exceeded, an error is printed on the SMDR report.

Reference clock back-up priorities: One

of the

Cards installed in the system must be programmed as the system reference clock (see “reference clock programming” following paragraph 3.88). If more than one Tl Card is installed in the system, the programmer may designate one or more of the cards as a “backup” to the system reference clock. Then, if the

Card acting as the system reference clock fails or is taken out of service, the next Tl Card on the backup priority list takes over.

3.88 The each Tl

Card type:

information that is programmed

specijic

Cad installed in the system includes:

The programmer must select the type of

framing scheme, D4 Superframe or Extended Super- frame (ESF), used by the Tl span connected to each card.

Zero code suppression scheme: The programmer

must select the type zero suppression scheme, (bit-7

stufling)

or Bipolar Eight Zero Substitution

AMI

(BSZS), used by the Tl span comected to each card.

PCM encoding law: In pulse code modulation

(PCM) systems, there are two primary methods of

encoding analog signals (sampled audio waveforms) into digital signals. In North America and Japan, the “mu-law” method is normally used. In other places, like Europe, the “a-law” method is widely used. The programmer must select both the transmit

and receive method of encoding used by the

SPECIFICATIONS

Issue 1, November 1994

Card.

In the UnitedStates, this will almost always be

mu-law to mu-law.

Relay activation: If desired, the programmer may

enable the two relays, Tl line error and Tl line OK, on the Tl Card.

Channel

service

unit

(CSU):

The programmer

must designate whether the optional on-board CSU is installed on the Tl Card.

(‘The

database selection

must match the jumper selection on the card.)

Line build-out

(LBO):

If the optional on-board

CSU is installed, the programmer must designate the

LB0

attenuation of the Tl

span

connected to the card. This value is determined by the distance to the nearest public network Tl repeater. (The database selection must match the jumper selection on the card.)

DSX-1

line

length: If the optional on-board CSU is

not

installed, the programmer must designate the

length of the cabling between the Tl Card and the external CSU, or between the Tl Card and the other telephone system to which it is connected.

Reference clock programming:

The

programmer

must first designate whether the Tl Card is connected to the public network. If it is, the card is auto-

matically designated as a slave clock (the public

network always acts as the master clock). If the card

is not connected to the public network, but is instead

connected to another Tl Card or a card in another telephone system, the programmer must designate whether the card is a master clock or a slave clock (in relation to the card on the other end).

In addition, one of the Tl Cards installed in the sys-

tem must be programmed as the system reference

clock. The reference clock then becomes the clock

for all the other cards in the system. If there is no

Card acting as the reference clock, the Matrix Card becomes the system reference clock.

If a Tl Card is designated as both a master clock and the system reference clock, the programmer must then designate whether the card’s on-board oscillator is the source of the clock or whether there is an

external clock.

NOTE: The external clock option is provided for possible future use only. For now, always designate

the card’s on-board oscillator as the source of the clock.

Test tone:

If desired, the programmer can transmit a

digital test tone (1007Ex, OdBM, sine wave) over the selected Tl circuit. The tone can be verified by mon- itoring the transmit audio port on the card’s dual bantam jack.

Page 2-19

SPECIFICATIONS

Issue 1, November 1994

Error diagnostics: If

desired; the programmer can

lMX/GMX

generate the current Tl error counts (by hour and by day) for the selected card. The error counts can be displayed in a graphical or tabular format, printed (stand-alone/remote only), or saved in a file for future reference.

3.89 The information that is programmed

each

circuir

(i.e., each of the 24 channels) on the

specifzc to

Card includes:

Circuit type: Each individual circuit can be pro-

grammed 3s a loop start, ground start, DID,

E&M,

OPX trunk.

Diital gain

should voice transmit or voice receive volume

lems

control:

As with the other trunk cards,

prob

occur, the programmer can adjust the receive gain and/or the transmit gain (-15dB to 15dB) for individual Tl circuits.

DTMF’ or dial-pulse

signaliug:

When the system is in the default configuration, all trunk circuits are configured for DTMP signaling. If necessary, some or all of the circuits can be reprogrammed for

dial-

pulse signaling.

3.90 The Tl circuits are assigned hardware address

numbers according to the card’s slot in the equipment cabinet and the location of the circuit on the card. For example, Tl circuit 6.21 is the 21st circuit on the 6th card, a

3.91

TlC,

installed in the equipment cabinet.

Special Tl

cabling

requirements: It is recom-

mended that special high-speed data cable with the following characteristics be used for all Tl installations:

256 INSTALLATION 4% MAINTENANCE

INTER-TELPRACTICES

22 AWG Individually shielded two-pair (or with the transmit

and receive pairs run in separate cables or binder

&TOT4

ABAM or PIC (a level-3 cable designed specifically for the T-carrier transmission rate)

Maximum capacitance of lSpF/ft. Maximum attenuation of

5dB/lOOO

ft. at

772kHx

and 70“ F

NOTE: The programming prompts for

LB0

attenuation and DSX-1 line length assume that proper Tl cable (with the above characteristics) is

being

used. When transmitting over shorter distances (e.g., when the nearest public network Tl repeater is less than 2000 feet from the MDF), it may be possible to use standard two- pair voice frequency cable instead; however, the programmer may have to compensate by selecting longer

LB0

distances or DSX-1 line lengths. Also,

matter which type of cable is used, the transmit and receive pairs must be shielded from each other (or nm in separate cables or binder groups).

3.92 If the optional DB15

corrector

on the Tl Card is used in place of the standard RJ48C jack, a flat, 2SAWG, twisted-pair ribbon cable with a maximum capacitance of 16pF/ft. may be used for distances of up to 50 feet (see page 3-20 for more information). For distances longer than 50 feet, use the special high-speed data cable described in paragraph 3.91.

Page 2-20

E!E=2imcw

STALLATION & MAINTENANCE

SPECIFICATIONS

Issue 1, November

1994

4. STATION INSTRUMENTS

4.1

A wide variety of station instruments can be used

on the 256 System. The combination of station instru-

ments depends on the number and type of station cards

installed.

4.2 The system capacity for stations is as follows:

Total Station

Key-

Attendant

Single-Line

Dss/BLFunits

* At least one

dant (equipped Console) to

data,andrecciveamqen&dCOrecaUs.Whenthesystemis

in the default and the primaxy attendant.

l *

Analog puter Consoles for each analog DSS/BLF Unit installed, one less analog or Attendant Computer Console may be installed. (A

Unitcannotbepro~edasthe”IT’circaitforan&linedual-

circuit

NOTE: Since most systems will be installed with a variety of station and trunk cards and a variety of station instruments, the maximum station and trunk capacities listed in this manual will rarely be reached.

IMX 256 KEYSETS

4.3 Refer to page 3-71 for keyset installation instruc-

tions. The following digital and analog models are

available:

Standard Digital Keysets (also referred to as Standard Digital Terminals)

Executive Digital Executive Digital Terminals) - display only

24Line AlM

12-Line

8-Line Dual-Circuit AIM Keysets (display only)

24Line

12-Line Keysets (standard and display)

8-Line Keysets (non-display only)

NOTE: With the proper software package, the Inter-Tel

GX station instruments can be installed on the system. Refer to Appendix A in the back of the manual for complete information.

hstrnments

-Using Digital

-Using &Line

-UsingOther’QpeKeysetsOnly

-using

Keysets,

JhfX

AIh4

Keysets

Only

Dual-M. AIMS

calDuter

Kevset

re4xive

umtiguration,

Consoles

Se&

Digital units only cL200 Analog units only

Card must be installed to

kitlt

a display keyset or an

system alarm

circuit 1.1 is designated as a keyset

analog

use

DWBIP

separate KSC or

keyset.)

Keysets

Only

messages,

Units, and Attendant

KSCD citcnits.

display and non-display

(also referred to as

Keysets (display only)

AIM

Keysets (display only)

Keysets (standard and display)

256

CL256

O-256 O-128

&128

&240’

O-50-

urovide

an atten-

Am&ant

Computer

program system

Therefore,

DWBLF

Corn-

key&

4.4 For illustrations of the keysets (and other station instruments), refer to the drawings beginning on page 2-33. The feature keys, speeddial keys, call keys, and

station programmable keys shown in the drawings are as they appear when the system is in the default

cotigura-

tion.

4.5

The approximate

dimensions of both the Standard

and Executive Digital Keysets are:

Height 3.0 in. (7.6 cm.) Width 7.5 in. (19.1 cm.) Length 9.0 in. (22.9 cm.)

4.6

Weight 2.3 lb. (1.0 kg.)

The

IMX 12~line

and

24-line keyset

dimensions

are:

Height 5.5 in. (14.0 cm.) Width 9.0 in. (22.9 cm.) Length 9.5 in. (24.1 cm.) Weight 3.1 lb. (1.4 kg.)

4.7

The

lMX 8-line

keyset dimensions are:

Height 4.5 in. (11.4 cm.) Width 6.5 in. (16.5 cm.) Length 9.5 in. (24.1 cm.) Weight 2.5 lb. (1.1 kg.)

4.8

All keysets (except as noted) have the following

design features in their default configuration:

12-key pushbutton keypad

Avariety

of feature keys (some of which may be des-

ignated as user programmable)

IC/CO

speed-dial (SD) keys with light-emitting

diode (LED) indicators (S-line keysets do not have

SD keys in the default configuration)

Four call keys with LED indicators for incoming call access and indication

Integrated speakerphone (digital

keysets

have

access to shared speakerphone resources)

Ring and voice volume controls (digital and AIM

keysets have UP and DOWN keys for adjusting vol-

ume levels)

Slide-out directory card

Self-test feature (for testing keyset functions)

Hearing aid-compatible

Reversible baseplate for wall mounting and reversible cradle hook for holding the handset on

(HAC)

handset

wall-

mounted keysets

Page

2-21

SPECIFICATIONS Issue 1, November

1994

IMX/GMX

256

INSWTION

INTEX-TELPRACTICES

& MAINTENANCE

Integrated Speakerphone

4.9 A built-in, integrated speakerphone is standard in all IMX analog keysets. All digital keysets have a speaker and a microphone for handsfree intercom reply, but they do not have a true integrated speakerphone. However, the DSP(s) on the associated

DISC

can be used to

provide shared integrated speakerphone circuitry. (See

page

4-40

for more information.)

NOTE: If there are no DSP speakerphone resources available when a digital keyset user attempts to use the speakerphone, the MUTE key lights and display keysets show NO SPKR AVAIL COME OFF HOOK The user can only monitor the call and must lift the handset to

Speak.

4.10 The integrated speakerphone allows users to

place and receive outside calls and intercom calls with-

out lifting the handset. Once a call is connected, the key-

set user may speak handsfree over the speakerphone or

lift the handset to speak privately. When using the handset, the user may switch

to the

speakerphone by pressing the SPKR key and replacing the handset. If enabled, pages and/or background music may be broadcast over

the speaker when the phone is not being used.

Liquid Crystal Display (LCD)

4.11 All Executive Digital

keysets @I-line,

with LCDs. Standard Digital Keysets and standard Ih$X

24-line

and ll-line

ll-line, and S-line) come equipped

keysets

Keysets

and all

IMX

AIM

can be converted to display sets by installing the appropriate LCD Unit (see REPLACEMENT PARTS for the part number). Non-AM

g-line

keysets

cannot be equipped with displays.

4.12 Each “display” keyset has a liquid crystal display (LCD) with two

16character

lines. The display helps the user to process calls more efficiently and professionally. There are display messages for date and time, numbers dialed, call cost data, reminders, do-notdisturb, forwarding, voice mail processing, incoming calls, station and system status, system alarms, and programming. These displays are indicated throughout the

PEKWRES

4.13

16-character

section of the manual.

Executive Digital

Keysets

have four additional

display lines that are associated with the eight menu selection keys that border them. The menu display changes to reflect the functions of the menu

keys. Pressing the key next to the displayed option selects that option. Refer to page 4-41 in

IMMURES

for information about the available menu options.

Electret

4.14

Circuitry

All newer

keysets

and handsets have been designed using “electret” microphone circuitry, rather than the “dynamic” microphone circuitry used on many previous Inter-Tel keyset models.

Electret

keysets and handsets are not electrically compatible with dynamic

keysets and handsets.

4.15

If a dynamic handset is attached to an

keyset,

the handset transmit levels will be noticeably

electret

lower. If an electret handset is attached to a dynamic

keyset, the handset will not transmit. (In both cases, nei-

ther the keyset nor the handset will be damaged.)

4.16

Electret keysets

ufacturer’s label on the bottom of the keyset.

can be identified by the man-

Electret

handsets can be identified by the “El” embossed in the recess for the wall-mount hook (near the receiver).

Optional Headsets

4.17

A headset may be attached to any keyset by unplugging the handset from the handset jack on the base of the keyset, plugging the headset into the handset jack,

and entering a feature code to enable the headset. The

SPKR key, which is used to turn the headset on and

of&

is lit when placing and receiving calls and unlit when the headset is not in use. The keysets are compatible with industry-standard, four-conductor, modular headsets. The headsets can have

electret

or dynamic micro-

phones, as needed (or carbon-microphone headsets that

are connected to the keyset through an extemally-pow- ered jackset, which makes the headset

dynamiccom-

patible). Refer to page 3-77for installation iustructions.

Optional Handset Amplifiers

4.18

The typical handset amplifier is an external de-

vice that plugs into the keyset (where the handset is nor-

mally connected); the handset is then plugged into the

amplifier. Receiver voice volume is controlled by tum- ing a thumbwheel (or similar control) located on the amplifier. Such amplifiers are generally equipped with a transformer that requires a 1lOVAC outlet. Refer to page 3-77 for installation instructions. AIM keysets do not require handset amplifiers.

Page 2-22

.,’

INTER-TELPRACTICES

lMX/GMX

256 INSTALLATION & MAINTENANCE

SPECIFICATIONS

Issue 1, November 1994

Optional Personal Computer Data Port Module

(PCDPM)

4.19

and to allow an optional digital

for Diital

Keysets

For off-hook voice announce receive capability,

DWBLFUnit

and/or an optional Modem Data Port Module to be installed, any digital

keyset

may be equipped with an optional PC Data Port Module (part no. 550.3014). See page 3-66 for instructions on installing the PC Data Port Module.

NOTE: PCDPMs require AC transformers when they

are connected to DSS/BLF Units only. PCDPMs do nor

require AC transformers when they are used for

off-

hook voice announce only or have attached MDPMs. For a diagram of AC transformer requirements, refer to Figure 2-2 on page 2-24.

Optional Modem Data Port Module

Digital

4.20 Digital

Keysets

keysets

equipped with PC Data Port

(MDPMY)

for

Modules may also be equipped with optional Modem

Data Port Modules (part no. 550.3015). The MDPM contains a jack that can be used to connect a data device (such as a Personal computer

equ+d

with a modem) to the keyset. Each MDPM is powered by its own AC transformer.

NOTE: MDPMs always require their own separate AC transformers. For a diagram of AC transformer requirements, refer to Figure 2-2 on page 2-24.

4.21

The data device attached to the

MDPM

must have a direct-connection modem. The modem must be external1 y powered (or capable of operating on 20mA of loop current) and have an device can be used by the associated

RJll

CO interface. The data

keyset

to communicate with remote data equipment over voice channels being used for CO or intercom calls. Refer to pages 3-78 and 4-101 for installation and operation

tiOllS.

Optional Data Port Module for

24-Lime

4.22

Keysets

All

IMX 12-line and

IMX 12-Lime

24line keysets

instmc-

and

may be equipped with optional Data Port Modules (refer to RE-

PLACHMRNT PARTS for the part number). The mod-

ule contains a four-conductor, can be used to connect personal computer

either

equ$ped

RJll

modular jack that

a data device (such as a

with a modem) or a loud ringing adapter (LRA) and an external signaling device (such as a loud bell, horn, flashing light, etc.) to the key- set. The Data Port Module is a source for

20-26mA

of loop current (constant current source). Refer to page 3-78 for instructions on installing the optional Data Port Module.

4.23

Specifications for modem-equipped data de-

vice: The data device must have a direct-connection modem. The modem must be externally powered (or capable of operating on 20mAof loop current) and have an

RJll

CO interface. The data device can be used with the

keyset

to communicate with remote data equipment over voice channels being used for CO or intercom calls. Refer to pages 3-78 and 4-101 for installation and oper-

ation

instructions.

4.24 Specifications for loud ringing adapter

(I&A):

An external

LRAmay

be connected to the Data Port Module to provide a relay for controlling external signaling devices. The LRA is connected to the Data Port Module, and the external signaling device is con-

nected to the LRA. Refer to page 3-80 for installation

instructions. Each time the keyset rings, the Data Port Module provides This causes the

20-26mA

LRA

of loop current to the LRA.

contacts to close and activates the signaling device. The LRA is not affected by the ring tone or the ringer volume of the keyset. The LRA must be capable of operating on 20mA current (approximately

2OvDc).

S-Line

4.25 If desired, new

installed two to a circuit

version

keysets one to

lMX

Keyset

AIM

Card

a circuit,

Keysets

On Dual Ciiuits

8-line

IMX AIM

keys&

using the new “dual-circuit”

@SC-D).

(To install

either the KSC or the KSC-D

can be

8-line AIM

can be used.) There are jumper straps on the back of the

8-line AIM

keyset to select the baud rate (2400 baud for two to a circuit; 1200 baud for one to a circuit) and to select the circuit position (A or B), depending

how

the keyset’s circuit will be designated in database programming.

4.26 Each

8-line AIM keyset

is shipped with a

stan-

dard (six-foot, three-pair) “flat” line cord for connecting the keyset to its corresponding modular jack assembly. For most installations, this flat line cord is more than adequate. However, when

8-line AIM

keysets are installed two to a circuit, low-level crosstalk between the two stations sharing the circuit may occur in certain situations. This is because the wires in a flat line cord are parallel to each other for long distances, thereby providing a susceptibility to audio bleedover. The level of crosstalk is dependent on the voice volume of the users, the length

of the line cord, and the station cable loop length.

4.27 To eliminate this low-level crosstalk, if necessary, replace the flat line cord with a twisted-pair line

cord that has the following characteristics:

Telcc orientation (rather than data)

0 26-gauge,

6to8twistsperfoot

stranded

Page 2-23

SPECIFICAlIONS

Issue 1, November 1994

Equipped with connectors designed specifically for round, twisted-pair line cord

4.28 Charcoal and grey twisted-pair line cords of vari- ous lengths can be purchased from a local supply house or directly from a cable distributor, such as:

lMX/GMX

256

INSTALLATlON

MAINTENANCE

AmericsnSources

Interstate Business Park #/806

Fredericksburg, VA 22405

Phone: (703) 899-3777

FAX: (703) 371-4350

Pt. No.: LCM65OxL (Grey), LCM66OxL (Charcoal)

(whae

x =

kngth ia

feet; e.g., LCM65O2.5L is a 25 ft.

INTER-TELPRACTICES

grcy

cord)

,,j

-FIGURE

= AC transformer required

IEJ

2-2.

DIGITAL AC TRANSFORMER REQUIREMENTS

(for off-hook voice announce only)

NOTE: require AC transformers when they are connected to DSS/BLF Units only. PCDPMs do

Digital

DSS/BLF Units and MDPMs always require their own separate AC transformers. PCDPMs

not

require AC trans-

formers when they are used for off-hook voice announce only or have attached MDPMs.

Page 2-24

. ’

. >,

.‘.!

~LF~RA&CTICES

ii?INLATION &

MAINTENANCE

!3PEClFICATlONS

Issue 1, November

1994

B. GMX-256KEYSETS

4.29

A maximum of 128 keysets can be connected to the GMX-256 System. Refer

keyset

installation instructions. The following analog

page 3-81 for GMX-256

models are available:

Inter-Tel/DVK

24-Line

Keysets (standard and dis-

play)

0 Inter-Tel/DVK 12-Line Keysets

(standard and dis-

play)

0 Inter-Tel/DVX

play)

GMX

24-Line Keysets (standard and display)

0 GMX 0

12-Line Keysets (non-display only)

24Line

8-Line

Keysets

(standard and dis-

Keysets (standard and display)

NOTE For more information on the GX and Gh4X key- sets, refer to appendixes A and B in the back of this manual.

4.30

For illustrations of the

Inter-Tel/DVK keysets,

refer to the drawings beginning on page 2-33. The feature keys, speed-dial keys, call keys, and station pro-

grammable keys shown in the drawings are as they

appear when the system is in the default configuration.

4.31 The

Inter-Tel/DVX 24-line keyset

dimensions

are:

Height 3.8 in. (9.7 cm.) Width Length

9.2 in. (16.5 cm.)

95in. (24.1cm.)

Weight 2.8 lb. (1.3 kg.)

4.32 The

Inter-Tel/DVK

12-line

keyset

and

8-line

keyset dimensions are:

Ring and voice volume controls (using the VOL Up and VOL DN keys)

Slide-out directory card

Self-test feature (for testing keyset functions)

Hearing aid-compatible

Reversible baseplate for wall mounting

Integrated Speakerphone

@AC)

handset

4.34 Abuilt-in, integrated speakerphone is standard in all keysets. The integrated speakerphone allows users to

place and receive outside calls and intercom calls with-

out lifting the handset. Once a call is connected, the key-

set user may speak handsfiee over the speakerphone or

lift the handset to speak privately. When using the hand-

set, the user may switch to the speakerphone by pressing

the

SPKR

key and replacing the handset. If enabled, pages and/or background music may be broadcast over the speaker when the phone is not being used.

Liquid Crystal Display (LCD)

4.35 Each “display” keyset has a liquid crystal display (LCD) with two 16-character lines. The display helps the user to process calls more

e5ciently

and profession-

ally. There are display messages for date and time, numbers dialed, call cost data, reminders, do-not-disturb, forwarding, voice mail processing, incoming calls, station and system status, system alarms, and program-

miug.

These displays are indicated throughout the

FEMURES

section of the manual.

4.36 All standard Inter-Tel/DVX keysets can be converted to display sets by installing an LCD Unit. The

24&e keysets

828.1166). The 12-line and 8-line keysets use the

use the

Zarge

LCD

Kit

(part no.

small

LCD Kit (part no. 828.1165).

Height 3.8 in. (9.7 cm.) Width 7.0 in. (17.8 cm.)

Length 9.5 in. (24.1 cm.) Weight 2.5 lb. (1.1 kg.)

433 All design features in their default

Inter-Tel/DVK keysets

con@uration:

have the following

12-key pushbutton keypad

Avariety

of feature keys (some of whichmay be des-

ignated as user programmable)

IC/CO

speed-dial (SD) keys with light-emitting

diode (LED) indicators

Four call keys with LED indicators for incoming call

access and indication Integrated speakerphone

Electret

437 All newer

signed using “electret” microphone circuitry, rather

than the “dynamic” microphone circuitry used on many

previous Inter-Tel keyset models.

handsets are not electrically compatible with dynamic

keysets and handsets.

4.38

keyset,

lower. If an electret handset is attached to a dynamic

keyset, the handset will not transmit. (In both cases, nei-

ther the keyset nor the handset will be damaged.)

439 ufacturer’s label on the bottom of the keyset. Electret handsets can be identified by the “El” embossed in the recess for the wall-mount hook (near the receiver).

Page 2-25

Circuitry

keysets

and handsets have been de-

Electret

If a dynamic handset is attached to an

keysets and

electret

the handset transmit levels will be noticeably

Electret keysets

can be identified by the man-

SPECIFICATIONS

Issue 1, November 1994

IMX/GMX

256

INS~TION

INTER-TELPRACTICEs

& MAINTENANCE

Optional Headsets

4.40 A headset may be attached to any keyset by un-

plugging the handset from the handset jack on the base

of the keyset, plugging the headset into the handset jack, and entering a feature code to enable the headset. The

SPKR key, which is used to turn the headset on and off, is lit when placing and receiving calls and unlit when the headset is not in use. The keysets are compatible with industry-standard, four-conductor, modular headsets that have dynamic microphones, or carbon-microphone headsets that are connected to the keyset through an externally powered namic-compatible). Refer to page

illStNCtiOUS.

Optional Data Port Module

4.41

All Inter-TeUDVKkeysets maybe equipped with

jackset

(which makes the headset dy-

3-86

for installation

optional Data Port Modules (refer to REPLACFMJZNT

PA#rs

for the part number). The module contains a four-conductor, connect

RJll

modular jack that can be used to

either

a data device (such as a personal computer equipped with a modem) or a loud ringing adapter

(LRA) and an external signaling device (such as a loud

bell, horn, flashing light, etc.) to the keyset. The Data

Port Module is a source for 2O-26mA of loop current

(constant current source). Refer to page

3-87

for in-

structions on installing the optional Data Port Module.

4.42

Specifications for modem-equipped data de-

vice: The data device must have a

direct-connection

modem. The modem must be externally powered (or ca-

pable of operating on

RJll

CO interface. The data device can be used with the

keyset

to communicate with remote data. equipment

2omA

of loop current) and have an

over voice channels being used for CO or intercom calls.

Refer to pages

3-87

and 4-101 for installation and oper-

ation instructions.

4.43

Specitications

An external

for loud ringing adapter

LRAmay

be connected to the Data Port Module to provide a relay for controlling external signaling devices. The LRA is connected to the Data Port Module, and the external signaling device is connected to the LRA. Refer to page

3-89

for installation instructions. Each time the keyset rings, the Data Port Module provides This causes the

2O-26ti

LRA

of loop current to the

contacts to close and activates the

LRA

signaling device. The LRA is not affected by the ring tone or the ringer volume of the keyset. The

LRA

must

be capable of operating on 2OmAcurrent (approximate-

ly 2ovDC).

Page 2-26

lNlxR-TELPRACTIcES

IMX/GMX

256 INSTALLATION &

MAINTENANCE

SPECIF’ICATIONS

Issue 1. November 1994

C. IMX 256 DSWBLF

4.44 The

lMX

256 System can have as many as 50

UNlTS

keyset circuits equipped with DSS/HLF Units. For ex-

ample, there could be a maximum of 50 digital keysets (i.e., DKSC circuits) equipped with up to four digital

DSS/BLF Units each. Or, there could be a maximum of

50 KSC or KSC-D circuits equipped with one analog

DSS/BLF Unit each. Or, there could be any combination

of the two using up to 50 keyset circuits.

4.45 Each unit provides one-key access to 60 numbers. The

numbm

can be station extension numbers, hunt group pilot numbers, system feature codes, or system speed-dial numbers.

4.46

Digital

DSS/HLF

Units are physically attached to and programmed to be used with specific digital key- sets. The units are connected in series to the PC Data Port Module (PCDPM) on the back of the corresponding

keyset.

Unlike analog units, digital

not

require station cabling separate

DSS/BLF

from

the

Units do

keyset’s

cabling; instead, they are powered by their own AC transformer. If desired, all units can be connected to

keysets installed on the same Digital Keyset Cards. (Re-

fer to page 3-90 for digital

DSS/BLF

Unit installation

instructions.)

NOTE: Digital

DSSBLF

Units always require their own separate AC transformers. For a diagram of AC transformer requirements, refer to Figure 2-2 on page 2-24.

4.47

Analog

DSS/HLF

Units are programmed to be used with specific analog keysets, but are not physically attached to the among several assigned to one

keysets. keysets

keyset.

The units can be distributed or, if desired, they can be Each unit requires a KSC or

KSC-D circuit that is separate from the keyset’s circuit. If50 station circuits are used for analog DSS/HLFUnits, 50 fewer analog

Consoles can be installed. Up to four analog units

keysets

and/or Attendant Computer

canbe

installed on a single

for

IMK

DSS/BLF Unit installation instructions.)

4.48 For illustrations of the station instruments), refer to the drawings

Keyset

Card. (Refer to page 3-92

DSS/HLFUnits

beginuing

(and other

page 2-33.

4.49

Digital

DSS/BLF

Unit dimensions are:

Height 3.0 in. (7.6 cm.)

Width 7.5 in. (19.1 cm.) Length 9.0 in. (22.9 cm.) Weight 1.7 lb. (0.8 kg.)

4.50

lMX

DSS/HLF Unit dimensions are:

Height 5.5 in. (14.0 cm.)

Width 9.0 in. (22.9 cm.)

Length 9.6 in. (24.1 cm.)

Weight 2.0 lb. (0.9 kg.)

4.51

As stated earlier, each

DSS/HLF

Unit provides

one-key access to up to 60 numbers. These numbers can be station extension numbers, hunt group pilot numbers, or system feature codes, or system speed-dial numbers.

The layout of the keys and the numbets they access are

assigned using one of up to eight key maps in database

progr-g.

4.52 Together, the lamps in the keys create a busy lamp field that indicates the status of each station or hunt group assigned to the keys. The LED indicator in the key is solidly lit when the associated station is busy, flashes slowly when the station is in do-not-disturb, flashes fast when the station has a call ringing in, or flutters continuously if the station is causing a SDXI’ION OFF-HOOK

system alarm. If assigned to a hunt group, the LED indi-

cator is solidly lit when all stations in the hunt group are unavailable (busy, forwarded, in do-not-disturb, or removed from the hunt group) and it flashes fast when a

call is camped on to a hunt group.

Page 2-27

SPECIFICATIONS

Issue 1, November 1994

lM.WGMX 256 INSmTlON

INTER-TELPRACTICES

& MAINTENANCE

D. GMX-256 DSWBLF UNITS

453 There can be a maximum of 50 Direct Station Selection/Busy Lamp Field

@SS/BLP)

Units installed on the GMX-256 System, including any of the follow- illg:

Inter-Tel/DVK DSS/BLF

GMX

DSS/BLP

GX DSS/BLF Units - single or tandem

Units -single only

Units -single or tandem

NOTE: For more information on the GMX and GX station instruments, refer to appendixes A and B in the back

of the manual.

4.54 A DSS/BLF Unit consists of either a single unit or two units connected together to form a tandem unit.

Each single unit provides one-key access to 6Onumbers, while tandem units provide access to 120 numbers. The numbers can be station extension numbers, hunt group pilot numbers, system feature codes, or system speed-

dial

numbers.

4.55

The 50 single/tandem units can be distributed

among several

keysets

or, if desired, they can be assigned to one keyset. (Refer to page 3-93 for DSS/BLF Unit installation instructions.)

4.56 DSS/BLF Units are programmed to be used with specific keysets, but are not physically attached to the

keysets. Each unit requires a KSC-D circuit that is sepa-

rate from the keyset’s circuit. If 50 station circuits are used for DSS/BLF Units, 50 fewer keysets and/or Attendant Computer Consoles can be installed. Up to four units can be installed on a single

457 For an illustration of the other

Inter-TellDVK

station instruments), refer to the

drawings beginning on page 2-33.

Keyset

Card.

DSS/BLF

Unit (and

Unit

dimensions are:

Height 3.8 in. (9.7 cm.) width 7.0 in. (17.8 cm.) Length 9.5 in. (24.1 cm.) Weight 2.5 lb. (1.1 kg.)

4.58 As stated earlier, each single DSS/BLF Unit provides one-key access to up to 60 numbers. These numbers can be station extension numbers, hunt group pilot numbers, or system feature codes, or system speed-dial numbers. The layout of the keys and the numbers they

access are assigned using one of up to eight key maps

(12 in expanded systems) in database programming. The intercom number/key assignments are programmed in two lists, DSS 1 and DSS 2. Single DSS/HLF Units

can be assigned with either list. Tandem Inter-Tel/DVK units are assigned with the DSS 1 list, then an internal strap is set to identify the key arrangement each individual unit will use.

4.59

Together, the lamps in the keys create a busy

lampfieldthatindicatesthestatusofeachstationorhunt group assigned to the keys. The

LFD

indicator in the key is solidly lit when the associated station is busy, flashes slowly when the station is in do-not-disturb, flashes fast when the station has a call ringing in, or flutters continuously if the station is causing a STATION OFF-HOOK system alarm. If assigned to a hunt group, the LED indicator is solidly lit when all stations in the hunt group are unavailable (busy, forwarded, in do-not-disturb, or removed from the hunt group) and it flashes fast when a call is camped on to a hunt group.

A’ITENDANT

4.60 The Attendant Computer Console is an

COMPUTER CONSOLES

IBM-

compatible personal computer that is connected to an available KSC or KSC-D circuit (they cannot be connected to DKSC circuits). The computer contains a proprietary circuit card and special software. It is primarily designed for use by attendants of larger 256 Systems

those systems with so many station users that it would make using DSS/BLF Units somewhat awkward. However, due to its enhanced functionality, including electronic text messaging and directory dialing, the

Attendant Computer Console is also an attractive option for smaller 256 Systems as well.

4.61 Attendant Computer Console design features include:

IBM XT-, AT-, or 386-compatible processing unit

CGA,

EGA,

or VGA monitor and Monitor Interface

Card 122-key custom keyboard

Headset operation

Specially-designed circuit card and interface software

NOTE For additional information on the Attendant Computer Console, along with detailed installation and programming instructions, refer to the manual included with the console.

Page 2-28

~LI&Jyms

STALLATION &

MAINTENANCE

SPECIFICATIONS

Issue 1, November 1994

F. SINGLE-LINE SETS

4.62 Up to 240 single-line sets may be installed on the 256 System. The models available are:

Enhanced Single-Line Sets

(EEiLSs)

-available on

IMX 256 Systems only

Single-Line Instruments

Industry-standard, single-line DTMF sets

(SLIs)

4.63 For illustrations of the ESLS and SLI (and other station instruments), refer to the drawings beginning on page 2-33. The feature keys shown in the drawings are

as they appear when the system is in the default conflgu-

ration.

4.64 The dimensions of the ESLS are: Height 45 in. (11.4 cm.)

Width 6.5 in. (16.5 cm.)

Length 9.5 in. (24.1 cm.)

Weight 2.2 lb. (1.0 kg.)

4.65 The dimensions of the SLI are: Height 3.5 in. ( 8.8 cm.)

Width

7.5 in. (18.8 cm.) Length 9.0 in. (22.5 cm.) Weight 2.0 lb. (0.9 kg.)

4.66 ESLS design features include:

Nine user-programmable feature keys and a

non-

programmable timed hookflash (FLASH) key

A neon light for message waiting indication

A ring volume thumbwheel control

Hearing aid-compatible

@AC)

handset (may be equipped with a handset amplifier as described on page 2-22)

Reversible baseplate and cradle hook for wall mounting

A ringer that can be set for AC or DC by moving a

jumper strap located on the control board

Selectable ring pitch jumper strap (HI or LO) on the control board

4.67 SLI design features include:

Four user-programmable feature keys and a

non-

programmable timed hookflash (FLASH) key

A ring volume thumbwheel control

l Hearing aid-compatible

(HAC)

handset (may be equipped with a handset amplifier as described on page 2-22)

Reversible baseplate for wall mounting

0 AringerthatcanbesetforACorDCbymovinga

jumper strap located on the control board

4.68 Single-line set users access some station features

simply by lifting the handset and pressing a feature key (or entering a feature code). Other features are accessed using a combination of a hookflash (FLASH key) and a feature key or code. Refer to the

FEMURES

section of

this manual for details.

4.69

When single-line sets are connected to

Line Cards

ringers

(SLCs),

(ESLSs

they must be equipped with AC

and

SLIs

have internal jumper straps

Single-

that can be moved to set the ringer for AC or UC). When connected to Inward Dialing Cards sets may have AC ringers by setting the

(ID&),

lDC

single-line

circuit for AC ringing, or they may have DC ringers by setting the circuit for DC ringing. (Refer to page 3-95 for single- line set installation instructions.)

NOTE: IDCs do not support message waiting applications. If single-line sets with message waiting lamps are installed on IDCs, the lamps will not function.

Page 2-29

SPECIFICM’IONS

Issue 1, November

1994

IMX/GMX

256 INSTALLATION

INTER-TELPRACTlCE8

MAINTENANCE

G. OFF-PREMISES EXTENSIONS

(OPXs)

4.70 An OPX is an AC ringer-equipped BSLS, SLI, or single-line

M’MF

set that is placed in a remote location and connected to the system through a telephone company OPX circuit or a customer-provided circuit.

4.71 Off-premises stations are

connected to Inward Dialing Cards (up to eight circuits on a card) or Tl Cards (up to 24 circuits on a card). If necessary, the receive gain and/or the transmit gain for each circuit can be ad-

justed in database programming (see page 5-30 for de-

tails). NOTE: lf connecting

OPXs,

Inward Dialing Cards

must be used. FCC regulations prohibit connecting

OPXs to Single-Line Cards.

4.72 The OPX circuits provided by the telephone company are identified with Facility Interface Codes

(FE):

Class A,

OL13C. The service order code is

private circuit).

OL13A; Class

Ifthe

impedance does not exceed a loop

OL13B;

or Class C,

9.OF

(fully protected

measurement of 800 ohms (loop of 15,600 feet using 24AWG wire), a customer-provided circuit between the

remote location and the system may be used.

4.73

The

8OO-ohm

loop limitation is usually suitable for accessing on-premises stations from off-premises stations. However, for applications where one off-pre-

mises station will be calling another through the station

card, the impedance between the two off-premises sta-

tions (both circuits added together) must be less than

800 ohms (loop measurement). In this situation, a Class

A or B FIC circuit is preferable.

4.74 When an IDC circuit is designated for OPX use in database progr

amming

(see page 5-170), its voice volume levels are increased approximately 3dB over normal single-line set voice volume levels. This is an

attempt to compensate for any loss in the external OPX circuit. However, in certain off-premises applications,

the voice volume levels may still be unacceptable. This

degradation in voice volume is due to the natural voice frequency range limitations of the telephone company or customer-provided circuit. To increase the frequency

range, installation of a two-wire, negative impedance

repeater unit is recommended. Such units typically provide from O-15 decibels of voice volume gain and allow regulation of the gain in each direction when simulta-

neous voice transmission oczurs. The switching sensi- tivity on the unit should also be adjustable.

4.75 The repeater unit is installed at the MDFbetween the station block and the cabling to the off-premises station. (Refer to page 3-30 for OPX installation instructions.) When ordering a repeater unit, consult with the

supplier for ordering the proper mounting shelf and

power supply for the unit. Additional information on op-

erating and adjusting the repeater unit is generally included with the product.

H. PLAYBACK DEVICES

4.76 A playback device is an answering machine that

answers the call, plays a message, and then disconnects from the call. Playback devices are installed like siugle- line sets, using three-pair twisted cable and six-conductor modular jacks (or, if desired, one-pair twisted cable

and four-conductor modular jacks). The device must be capable of the following functions: detect ringing, pro-

vide ring trip, and automatically disconnect when the

announcement is completed.

4.77 Because most playback devices respond to AC ring signals, they are attached to SLC circuits or IDC circuits that are set for AC ringing. If the playback device responds to DC ring signals, an Inward Dialing

‘Card circuit that is set for DC ringing must be used. (Re-

fer to page 3-95 for playback device installation instructions.)

NOTE: For optimal performance, it is recommended

automated attendant playback devices be installed on

IDC circuits rather than SLC circuits.

4.78

Hunt groups can have two special stations that

help process calls: announcement stations and overflow

stations. These stations can be equipped with station in-

struments or playback devices. Automated attendant

stations can also be (See

FEKNRES,

equipped

page 4-17.)

with playback devices.

4.79 The playback device is programmed as a regular single-line station and is assigned an extension number. If the device is sensitive to camp-on tones and disconnects calls, the programmer can disallow the camp-on tone for that station circuit (refer to PROGRAMMING, page 5-30).

“.,

Page 2-30

pERLz&cn

STALLATION &

MAINTENANCE

. SPECIFICATIONS

Issue 1, November

1994

5. ADDITIONAL SYSTEM EQUIPMENT

A. PERSONAL COMPUTER (PC) FOR

ON-SITE OR STAND-ALONEIREMOTE

PROGRAMMlNG

5.1

The device used for on-site or stand-alone/remote programming must be an IBM AT+ompatible PC with a minimum: drive, Sy4-inch (1.2MB) or 3%~inch (1.44MB) double sided/high density floppy disk drive, 640k RAM (with minimum graphics monitor. A grogramming mouse is optional (if used, install on au unassigned COM port). For remote maintenance, a 3CKLbaud or 1200-baud modem is also needed. (See PRCGRAMMIN tional information on remote system maintenance.) To

connect the PC to the RCPU Card for on-site program-

ming, refer to the following information.

33.

PROGRAMMIN

5.2 The on-site programming PC and the optional output device(s) for the Station Message Detail Recording

(SMDR) and Station Message Detail Accounting (SMDA) features must have the characteristics de-

scribed in the following paragraphs.

5.3 To connect a PC or an output device to one of the

DB9

Card, one end of the cable between the two must have an

RS-232-G-compatible,

connector. The other end of the cable must be compatible with the output device. Consult the owner’s guide for the device to verify that the pin functions are the same as those shown in the following chart. Ifnecessary, rewire the connector on the device to match the requirements.

DataCarrierDetect(DCD) Re&ve

Transmit

Data Terminal Ready (M-R)

Signal

Data Set Ready (DSR)

Requti

Clear To Send (Cl-S)

Ring

True

5.4 The following cable can be created to connect one

of the

found on some PCs and output devices.

5MB

available memory on the hard disk

512k

available),

MS-DOS

3.3, and an EGA

G, page 5-3, for addi-

GPC AND

OUTPUT DEVICE REQUIREMENTS

serial ports

(PGRT

A or

female

FUNCTION

Data (RXD)

Dab (J-XD)

Ground

To Send (RIB)

hiicator

= steady signal

DB9

>+SV

ports on the RCPU Card to the DB25 port

Darato256

Data hm 256

Signal 6vm

Reference Ground

SMDR/SMDA

PORT

B) on the RCPU

g-pin subminiature “D”

Signal to 256

256

true*)

256

@ways me*)

Signal SigmaI from 256

(always Signal to 256 Signal to

Ell!i

2 3

6 7

JO=DBp

The following cable can be created to connect one

of the

DB9

ports on the RCPU Card to the

JO pc/olJlPuT QE2s

2 3 7

6 8

DB9

port

found on some PCs and output devices.

JO PCK)uTpIJJ

DB@

5.6 When the system is in the default conf@uration, the 256 output device ports (PGRT A and PORT B) are enabled for “software” handshaking. Most output devices are designed for software handshaking, which is the use of “X-ON” and “X-OFF” characters to indicate readiness to send or receive data. Refer to the device’s

operating manual to determine if it uses X-ON/x-OFF characters.

5.7 If the device does not support X-GN/X-OFP characters, hardware handshaking may be enabled (see

PRGGRAMMING,

page 5-169). When enabled for hardware handshaking, signals are sent over the comrec- tor pins to indicate readiness to send or receive data. The 256

DB9

port will send a logic true

(>+!5V)

on pin 4 (Data Terminal Ready) and pin 7 (Request To Send) when it is ready to receive data. In addition, the 256 DB9 port will monitor pin 6 (Data Set Ready), pin 8 (Clear To Send), or both (depending on how the 256 System is programmed) and will only send data if it receives a logic true (>+5V) over the programmed pin(s). port receives a logic false

(c-5V)

Ifthe

256 DB9

to indicate that the

buffer on the attached device is full, it will not send data.

5.8 To meet Part 15 of FCC Regulations, all RS-232-C cables must be equipped with ferrite beads. Two ferrite “split” beads (two half beads) are installed on each cable just below where the cable connects to the system. The

Page 2-31

SPECIFICATIONS

Issue

1, November 1994

IMX/GMX 256

INSWTlON

INTER-TELPRACTICE-S

& MAINTENANCE

beads help to reduce electromagnetic interference

(EMI) and radio frequency interference (RFI).

NOTE: Each ferrite split bead, which is actually half of

a full bead, is ordered individually (see REPLACEMENT PARTS for the part number). Two split beads are required to form one complete bead.

5.9 The on-site programming PC and SMDR/SMDA output devices must communicate at 110, 300, 600,

1290,2400,4800,9600,

or 19200 baud. (NOTE: The

19200 baud rate is for outgoing data only. The maximum programming baud rate is 9600.) System baud rates are set independently in database programming.

other specitications

The data format must be 8 bit standard ASCII.

Parity is off (ignored).

Communication is full duplex.

There is one start bit and one stop bit.

5.10

The output devices, whether used for SMDR or

include:

SMDA, must be able to print reports with a width of 80 characters. The devices must not have cables longer

than 50

5.11

feet (15 meters).

SYSTEM

BATTERY BACK-UP

To provide back-up power in the event of an AC power failure or brownout condition, the 256 System power supply can have optional battery back-up using a

customer-provided uninterruptable power supply (UPS)

unit or standby power supply (SPS) unit.

5.12 It is recommended

that

a power supply unit with

the following characteristics be installed:

rating, which results in longer discharge rates; the volt-

age level remains the same as a single string.

5.14

Batteries must be fully charged when installed. Charge each individually using a constant-voltage, current-limited charger with less than three percent ripple. The charge voltage per cell must be set according to the manufacturer’s specifications. Be careful not to damage the batteries by overcharging them. For example, new

Globe brand batteries require 25 days of float voltage or

25-30

discharge cycles to attain full capacity. Initial ca-

pacity might only be 80 percent of rated capacity.

5.15

All

batteries should be of the same age and AH

rating. Some manufacturers date batteries by stamping

them with a date code. For example, Globe stamps their batteries with a code such as

410-B,

where 4 = the last digit of year, 10 = the month, and B = the type of electrolyte. If a battery in a string needs to be replaced, the age of the string will determine if a fresh battery can be added. If the string is two to three years old, adding a fresh battery will reduce the life of the entire string. This is because a fresh battery will be overcharged, while the older batteries are undercharged.

5.16

Batteries may give off explosive and/or corrosive gases. To reduce the effects of this gas, place the batteries (or battery compartment) in a well-ventilated room and coat the terminals with an anti-corrosive agent. Avoid storing batteries; they will self-discharge and their capacity decreases with age. If you must store batteries, recharge them every six months. Recharge time may vary depending on the charger’s current limit and the battery’s state of charge.

D. ADDITIONAL INFORMATION

Sine wave output Transfer time of less than 20 milliseconds

Output rating of 700 Watts (minimum needed for a fully populated system; for smaller system require-

ments, contact Customer Support) External or internal batteries Low voltage cutoff circuit of 105VAC (minimum)

NOTE: Even if the power supply unit has the specifications listed above, it

camrot

be guaranteed that it will work properly with the 256 System. Contact Customer Support for a listing of approved IIPS/SPS power sup plies and installation instructions.

5.13

Batteries comrected in series form a “string.“The voltage of the string is equal to the sum of the individual battery voltages. For example, five 6V batteries connected in series form a 30V battery pack. If desired, connect two strings in parallel to double the amp/hour

Page 2-32

5.17 If necessary, contact Inter-Tel Customer Support for additional information on the optional equipment listed below:

OPX Repeaters

LRAs

and External Signaling Devices

Standby Power (system battery back-up)

Multi-Port Voice Mail

Facsimile Machine

Doorbox

Lightning and AC Surge Protection

Multiple External Paging Zones and

Talkback

Speakers

Headsets

Playback Devices

Power Failuxe Transfer

INTER-TELPRACTICES

lMX/GMX

256

lNSTALLATION &

MAINTENANCE

SPECIFICATIONS

Issue 1, November

1994

FIGURE

2-3.

EXECUTIVE DIGITAL KEYSET (also called Executive Digital Terminal)

HEARING AID-COMPATIBLE

(HAC) HANDSET

INTERNAL

SPEAKER

LCD

WlTH

SIX 8 LCD

MEtiU

SELEG

16-CHARACTER LINES TION KEYS

2 LCD FEATURE

INSTALLATION

CONTENTS PAGE

1. Introduction

2. System Installation Outline

Pre-Installation

Establish Suitable Environmental Conditions For The System B. Assemble The Necessary Tools Aud Supplies .

Plan Station Locations And Types Of Station Instruments D. Assemble The Optional Equipment

4. Station Cabling

Running Cable

B. Terminating The Cables At Station Locations

.........................................................

............................................ 3-2

Checklist

............................................. 3-3

.......................... 3-3

..................................

...................................................... 3-6

................................................... 3-6

.........................

5. Assembling The Main Distribution Frame (MDF) Backboard .

Connecting The Trunk Cables To The MDF

B. Connecting Tl Spans To The MDF

.................................. 3-17

C. Connecting Station Cables To The MDF

D. Station Loop Resistance Test

....................................... 3-29

E. Connecting Optional Off-Premises Extensions (OPXs) .

Connecting The RCPU Card To The MDF

..........................

............................. 3-21

..................

............................ 3-30

G. Connecting Optional Tl Alarm Relay Devices To The MDF H. Connecting

6. Equipment Cabinet Installation A. Unpack The Equipment

B. Check The Equipment Cabinet

Install The Power Supply Modules D. Install The Circuit Cards E. Check The Circuit Card Installation F.

Complete The Equipment Cabinet Installation

‘Dvo

256 Systems Together Using Tl Cards

........................................ 3-35

........................................... 335

Pre&sembly

.................................. 3-39

.......................................... 3-44

.................................

.................

.........................

........................

...........

..............

...............

.............

3-2

3-3 3-4

3-5.

3-7 3-9

3-H

3-30 3-33

3-34

3-35

3-61

7. Station Installation ...................................................

IMX 256 Digital Keyset Installation

IMX 256 Analog Keyset Installation C. GMX-256 Analog Keyset Installation D. IMX 256 Digital DSS/BLF Unit Installation

IMX 256 Analog DSS/BLF Unit Installation

GMX-256 Analog DSS/BLF Unit Installation G. Attendant Computer Console Installation

H. Single-Line Set And Playback Device Installation

8. SMDR/SMDA Output Device Installation

9. External Paging Equipment Installation

10. External Music Source Installation

11. Preventative Maintenance

12. Post-installation Checklist

............................................. 3-99

............................................. 3-100

.................................

................................. 3-71

................................ 3-81

...........................

.......................... 3-92

......................... 3-93

............................ 3-93

...................... 3-95

................................

.................................

...................................... 3-99

Page 3-l

3-62 3-62

3-90

3-98 3-98

INSTALLATION

Issue 1, November 1994

lMX/GMX

256 INSTALLATION & MAINTENANCE

INTER-TELPEACTICES

1.1 This section describes the recommended procedures for installing the 256 System hardware. Refer to

SPBCIFICAlIONS

2. SYSTEM

2.1 System installation is performed in the following order. Detailed instructions and figures for each step are located throughout the J.NSTAL,LAlTON section.

Plan the installation, including the equipment

(1)

cabinet and main distribution frame (MDF) location, station locations, cable runs, and optional equipment.

Run cables to the keysets, analog Direct Station

(2)

Selection/Busy Lamp Field Attendant Computer Consoles, single-line sets,

and playback devices. Run wiring to any optional equipment, such as power failure transfer

equipmenf

signaling devices, music sources, etc.

INTRODUCI’ION

for hardware descriptions.

INS’WLLATION OUTLJNE

(DSWBLF)

external paging equipment, general

Units,

Perform the station loop resistance test for each

(6)

station cable. Assemble the equipment cabinet.

I&all

(8) (9)

(11)

(12)

(13)

the system power supply modules in the

power supply chassis. Install the circuit cards in the equipment cabinet

and connect them to the cables

that run from the MDF blocks (or MDF modular

jack assemblies).

Install the station instruments and any optional station equipment, such as headsets, handset amplifiers, and Data Port Modules.

Install any optional system equipment, such as output device(s) for station message detail recording (SMDR) and station message detail accounting (SMDA), external paging network,

external music source(s), voice mail, etc.

Ensure that all equipment is working properly.

Refer to the manual to cont&ure and program the system.

PROG RAMMING section of this

(or,line

cords)

Terminate the station cables on modular jack as-

(3)

semblies at the station locations. Mount the MDF backboard and assemble the ter-

(4)

minal blocks on the backboard. If any Tl spans

are to be installed, terminate them on eight-con-

ductor modular jack assemblies at the MDF. NOTE: The Tl span is typically connected to

the standard the Tl Card. However, in certain situations (e.g., when using an external CSU equipped with a DB15 connector), it may be more convenient to use the card’s optional DB15 connector instead. Refer to page 3-20 for more information.

Connect the trunks, station cables, and circuit

(5)

card cables to the corresponding terminal blocks

(or, for

R&X.!

modular jack provided on

Tl,

modular jack assemblies).

NOTICE

This LUWGMX256 Installation and

nance

Manual

on the proper installation practices for the 256 Sys-

tem. This manual does

instructions for premises wiring practices as dictated by the National Electrical Code, which includes, but is not limited to, cable layouts, cable installation, AC power installation, proper AC grounding, eliminating or preventing external inter-

ferences (including, but not limited to, RFI, EMI,

lightning, AC power disturbances, static discharge),

and other telephony practices standard within the in-

dustry. Cable installers, electricians, and field technicians are expected to be properly trained and, if

applicable, licensed in their trade practices.

256

certijktion

tance.

inst~cts

certified field technicians

not

provide stepby-step

is required for technical assis-

Fiekihiainte-

Omial

Page 3-2

INTER-TELPRACTICES IMNGMX 256

INSTALLATION &

M4INTENANCE

INS-TION

Issue 1, November 1994

PRE-INSTALLATION

CHECKLIST

3.1 To make installation easier, use the checklist on the following pages when preparing to install the sys-

tem. (Hardware specifications are included in the

SPEClFICAI’IONS section.)

A. ESX4BLISHSIlI’k3LE

EI’MRONMENTAL

CONDITIONS FOR

THE SYSTEM

Locate the equipment cabinet within 5 feet (1.5 me-

ters) of an isolated, dedicated,

57-63H2, 15A,

single-phase commercial power

105-125VAC,

source. NOTE: This musf be an isolated, dedicated AC cir-

cuit for proper operation. All three wires (power, neutral, and ground) must be run separately from the outlet to the breaker panel without being bonded to any other wire or circuit. DO

NOT

plug any other

equipment into this outlet. To maintain the protection provided by the isolated, dedicated circuit, the length of the AC power cord limits the distance between the power supply and the outlet; DO

NOTuse

an extension cord. Also, to protect the system from AC voltage surges, a surge/spike protector is

supplied with the system (refer to page 2-9 for speci-

fications).

Select the equipment cabinet location to minimize

cable run length. Station instruments connected to

the system must not exceed the limits (using

24AWG wire) listed in the table on page 3-29. The

ohm values are loop measurements; feet

(meter)val-

ues are the maximum one-way measurements from the equipment cabinet.

REQUlREMENTSINOPERATlON

Temperature Equipment Cabiiet o”to 4o”c!

Temperahue Station Instruments

Relative Humidity 5% to 95% 5% to 95%

(Nolbcondensing)

Altitude

32’ to 104” F

32” to 113’ F

O”t0

45°C

up to 10,ooo ft.

(3.043 m.)

-40’

to 185’ F

-40°t08S0C 40”

to 185” F

-40°t08S0C

UptO40,ooOft. (15192 m.)

NOTE: It is recommended that the maximum oper-

ating temperature (as stated above) never be exceed-

ed. Therefore, when installing the equipment

cabinet and station instruments, allow a sufficient margin for error in case of air conditioning failure, routine maintenance, plant shutdown, etc. As a general rule, if conditions are suitable for office personnel, they are also suitable for all equipment and station instrument operation. A properly controlled environment will help to extend the operating life of

the equipment.

From UL 1459, apnxakct

safety specification

govttming

telephone equipment:

Never install telephone wiring during a lightning

storm.

Never install telephone jacks in wet locations unless

the jack is specifically designed for wet locations.

Never touch uninsulated telephone wires or termi-

nals unless the telephone line has been disconnected at the network interface.

Use caution when installing or modifying telephone

lines.

Do not expose the equipment cabinet location to di-

rect sunlight, high humidity, heat, dust, or strong magnetic fields (such as those generated by heavy motors and large copy machines).

The MDF requires a 4 x 8-foot (1.2 x

x-inch

plywood backboard. This should provide

2.4meter),

sufficient room for all blocks and peripheral equip ment.

For cooling purposes, provide ample air space

around the equipment cabinet assembly (minimum

one foot on all sides). Other than the programming

PC, do not place or store items on top of the equip

ment cabinet.

The SMDR/SMDA output device(s) must not have

cables longer than 50 feet (15 meters).

Locate the equipment in a climate-controlled room

with the following environmental conditions:

Page 3-3

ASSEMBLE THE NECESSARY TOOLS AND SUPPLIES

Industry-standard,

twisted cable to run instruments, including:

three-pair (six-conductor)

from

the MDF to all station

keysets,

analog

DSS/BLF

Units, Attendant Computer Consoles, ESLSs, SLIs,

single-line DTMF sets, and playback devices. (For exceptions, see the NOTE on page 3-6.)

Six-conductor modular jack assemblies for all sta-

tion instruments. (For exceptions, see the NOTE on page 3-6.)

A high-impedance digital multimeter to check the

power supply and ensure correct wiring of the modular jack assemblies. Multimeter accuracy must be

H.5% or better.

Standard terminal blocks

(66Ml-50

type) and bridg-

ing clips for constructing the MDF.

INSTALLATION Issue 1, November 1994

Industry-standard,

MDF

terminal blocks to the circuit cards iu the

equipment cabinet.

Industry-standard, cross-connect wire may be needed for certain applications.

50-pin female amphenol-type connectors (with rec-

ommended non-conducting, plastic covers) and a

connecting machine.

Ferrite beads for all station, trunk, and RS-232-C cables. (Refer to SPECIFICATIONS, page 2-4.)

Gas discharge tubes with silicon avalanche suppres-

sors for lightning protection on the CO, DID, OPX,

andE&Mtrunks.

Grounding terminal and 1OAWG wire for grounding the equipment cabinet.

Standard hardware for the MDF backboard, trunk and station blocks, modular jack assemblies, etc.

Programm@

(refer to page 2-31 for specifications).

3.2

Ifauy ‘II

the type of Tl terminationused by the telephone compa-

ny (telco) and how close it is to the MDF, the following tools and supplies are also needed.

NOTE: The Tl span is typically connected to the standard

RJ48C

However, in certain situations (e.g., when using an external CSU equipped with a DB15 connector), it may be

more convenient to use the card’s optional DB15 connector instead. Refer to page 3-20 for more information.

For Tl spans terminated on

MDF:

Four-pair, non-reversing, mod-to-mod line cords

(one for each Tl span installed).

For Tl spans terminated on

the MDF (see

telephone hand tools and the mounting

modular jack provided on the Tl Card.

25pair

cable for comtecting the

PC for customizing the database

spans are

Figure

be installed: Depending on

RJ4SC

jacks near the

RJ48C

jacks away

3-9 on page 3-18):

from

lMX/GMX

INTER-TELPRACTICES

256

INSTACLATION

For Tl spans terminated on an

Figure 3-11

Eight-conductor modular jack assemblies (one for

each Tl span installed).

Four-pair, non-reversing, mod-to-mod line cords

(one for each Tl span installed).

- Tl

nation to the MDF (see page cations).

NOTE: For information on the GX and GMX station instruments, refer to appendixes A and B in the back of this manual.

Prepare a cable identification plan using station

cuit numbers; do not use extension numbers (see

page 3-6 for details).

- Keysets:

up to 256 keysets if using the new digital keysets or

8-line

to a circuit. The GMX-256 System has the capacity for up to 128 keysets. Refer to SPECIFICAI’IONS, starting on page 2-21, for a listing of the available

keyset models and for more information on maxi-

mum station capacities. Excluding nondisplay only models, all standard keysets can be converted to display Display (LCD) Units (see REPLACEMENTPARTS for part number).

NOTE: The equipment cabinet has 16 slots for station and trunk cards. The

and trunks available depena3 on the number and type of cam& station hsmmentts,

modides installed

- DSWBLF

equipped with powered by their own AC transformers and do not require a DKSC circuit that is separate from the key- set’s circuit. Each analog unit requires one KSC or KSC-D circuit and its own cabling. As many as four analog units can be installed on a single XSC.

on page 3-19):

-enough to extend from each telco termi-

cable

PLAN STATION LOCATIONS AND TYPES OF STATION INSTRUMENTS

The IMX 256

IMX AIM keysets, which can be installed two

keysets

by installing optional Liquid Crystal

Units: Up to 50

DSS/BLF

& MAINTENANCE

RI-type

2-u)

System has the capacity for

acmal number

keyset

Units. Digital units are

block (see

for cable specifi-

cir-

of stations

and power supply

circuits can be

Eight-conductor modular jack assemblies (two for

each Tl span installed).

Four-pair, non-reversing, mod-to-mod line cords

(two for each Tl span installed).

- Tl

cable -enough to extend from each telco RJ48C

jack to the MDF (see page

tions).

2-20

for cable specifica-

Page 3-4

Attendant Computer Consoles: If desired, up to

128 Attendant Computer Consoles can be installed

on the system. The consoles are connected to KSC or

KSC-D circuits.

NOTE: For additional information on the Attendant

Computer Console, along with detailed installation and programming instructions, refer to the manual included with the console.

‘,

2’

INTER-TELPRACTICES

IMX/GMX 256 INS-TION

MAINTENANCE

INSTALLATION

Issue 1. November

1994

- Single-Line

installed on the system. They can be Enhanced Single-Line Sets @SLSs), Single-Line Instruments

(SLIs), or industry-standard, single-line DTMF sets.

- PlaybackDevices:

place of single-line stations. They are especially

us&d

tions and automated attendant stations. (Refer to page 2-30 for specifications.)

ASSEM$LE

Headsets for keyset stations and handset amplifiers

for keyset stations or single-line set stations.

Digital keyset Personal Computer Data Port Mod-

ules (PCDPMs) for using Off-Hook Voice Announce (OHVA) features, and for installing a digital BLF Unit and/or an optional Modem Data PortMod- ule.

Digital keyset Modem Data Port Modules (MDPMs)

for connecting modem-equipped data devices or single-line sets.

Analog

either modem-equipped data terminals or loud ringing adapters and external signaling devices.

Sets: Up to 240 single-line sets can be

Playback devices can be used in

as hunt group overflow/announcement sta-

THE OPTIONAL EQUIPMENT

keyset

Data Port Modules for hooking up

DSS/

OPXrepeater(s) for amplifying voice volume levels,

if necessary. (Refer to page 2-30 for specifications.)

Up to two external music sources.

External paging speakers and amplifier(s). (Refer to

the NOTE and CAUTION on page 2-6.)

General signaling devices.

Power failure transfer equipment (customer-pro-

vided PFI’relay card, card mounting case, and external power source).

Electronic equipment (alarms, lights, etc.) to

nect to the night transfer relay and/or the Tl alarm

relays.

For on-site or stand-alone/remote system program-

ming, an IBM AT-compatible personal computer with a minimum: 6 megabytes (MB) available

memory on the hard disk drive,

3%~inch (l&MB)

floppy disk drive, 640k RAM (with minimum 512k available), MS-DOS 3.3 (or 5.0,6-O, or 6.2), and an EGA graphics monitor. A programming mouse is optional (if used, install on an unassigned COM port). For remote maintenance, a

2400-baud modem is also needed. (See page 5-3 for

more information.)

double sided/high density

S@nch

(1.2MB) or

300-, 1200-,

con-

- SMDR/SMDA

cables longer than 50 feet 2-31 for specifications.)

System battery back-up -

supply or standby power supply. (Refer to page 2-32 for specifications.)

output device(s) must not have

(15

meters). (See page

uninterruptable

power

Doorbox equipment. (Refer to page 2-32.)

Voice mail equipment. (Refer to page 2-32.)

Facsimile machine. (Refer page 2-32.)

Talkback speakers and external control unit. (Refer

to page 2-32.)

Page 3-5

INSTALLATION

Issue 1, November 1994

S’IXI’ION

CABLING

IlkWGMX 256

RUNNINGCABLE

INSTALLATION & MAINTENANCE

INTER-TELPRACTICES

4.1 Floor plans should be developed to aid in proper station cabling in a star (home run) configuration from the equipment cabinet. The cables are run from the station locations to the station blocks at the MDF. Refer to page 2-4 for cabling requirements.

4.2 Both ends of each cable should be labeled with the station’s circuit number (hardware address). The circuit number equipment cabinet (X = 1-16) and the circuit positionon the card (Y = 1-16 for DKSCS, Y = l-8 for KSCs, KSC-

lh,

number 4.6 identifies the sixth circuit on the card installed in slot number four.

NOTE: When IMX stalled two to a circuit, the circuit number is separated into two parts (A and B) in database programming (e.g., circuit

43 configuration is used to assign extensionnumbers to the station circuits. On IMX 256 Systems, card slots l-4 are considered KSCs or RSC-Ds, slots 5-6 are DKSCs, slots

7-8 are unassigned, slots 9-12 are

13-16 are LGCs. On GMX-256 Systems, card slots l-8 are considered KSCs or KSC-Ds, slots 9-12 are SLCs, and slots 13-16 are LGCs. Changes to the default configuration can be made through database programming. Refer to PROGRAMMIN G, page 5-170, for more information.

4.4

tion circuit 1.1, extension number 101 to station circuit

1.2, and so on to match the initial configuration. Circuit

1.1 is equipped as the primary attendant’s keyset when the system is in the default configuration. Through database programming the circuits can be assigned differ-

ent extension numbers and/or be changed to four-digit

extension numbers. Refer to PROGRAMMING, page

5-58,

NOTE: “B” circuit extension numbers

gramminp.

4.5

RX-D

set’s circuit and cabling. If50 keyset circuits are used for

analog DSS/BLF Units, 50 fewer analog keysets and/or

Attendant Computer Consoles can be installed. Up to

four units can be installed on a single Reyset Card.

(X.Y)

designates the card’s position in the

and IDES, Y = 1-16 for SLCs). For example, circuit

8-line

dual-circuit

4.6A

and 4.6B).

When the system is first powered up, the default

The system assigns extension number 100 to sta-

for more information.

8-line IMXAlh4

until

assigned one in database pro-

Each analog

circuit and cabling that is separate from the key-

DSS/BLF

Unit requires a KSC or

keysets

are in-

SLCs,

and slots

keysets do not have

NOTE: It is recommended that three-pair twisted cable and six-conductor modular jacks be used for all station connections. This allows the various types of station instruments to be easily interchanged, if necessary. However, digital sets, and playback devices can be installed using one- pair twisted cable and four-conductor modular jacks. (If three-pair cable is used for wiring digital single-line sets, and playback devices as recommended, extra terminal blocks and the use of crossconnect wiring techniques are required.)

4.6 From the MDF location, run industry standard, three-pair (six-conductor) twisted (24AWG, level-l or better) cable to keysets, analog DSS/BLF Units, Atten-

dant Computer Consoles, single-line sets, and playback devices. Follow these guidelines:

Install proper type cable for the application according to the National Electrical Code and local building

Avoid cable runs parallel to fluorescent light fixtures or AC lines not in conduit. If these obstacles are unavoidable, run the cables across them at right angles.

Do not run station cables inside electrical conduit already occupied by AC power cable. (To do so is a violation of the National Electrical Code.)

Do not run cables near equipment with electric motors or through strong magnetic fields, such as those generated by large copy machines, arc welding equipment, heavy motors, etc.

Do not place station cables where they can be stepped on or where they can be rolled over by office furniture.

Ifusingmulti-pair (e.g., 25-pair) ple station locations, do not include AC-ringing

single-line sets, AC-ringing auxiliary equipment, or

trunks in a cable being used for analog keysets, At-

tendant Computer Consoles, or analog Units. Stations using analog keyset circuits should be routed in separate multi-pair cable runs.

Do not exceed the loop limit measurements (using

24AWG wire) for the station cable lengths as out-

lined in the table on page 3-29. The ohm values are

loop measurements; feet (meter) values are the max-

imum one-way measurements from the equipment

cabinet.

keysets, ESLSs, SLIs,

txnks.

single-line

cablerunstomulti-

IYIMF

keysets,

DSS/BLF

Page 3-6

INTEB-TELPBACTICES

IMX/GMX

4.7

256

Since the

INS~TION

IMX

256 System utilizes digital voice

& MAINTENANCE

and data transmission between the digital keysets and the equipment cabinet, there are some additional digital keyset-only cabling requirements:

l Do not use shielded cable, and do not use cable

smaller than 24AWG.

Do not parallel cables (i.e., do not “double up on the COppX”).

Do not “bridge” or “Y” off the cable to another loca-

tion.

l Unlike analog

keysets,

the digital

keysets

do not

need to be routed in separate multi-pair cable runs.

For example, if using

25pair

cable runs to multiple station locations, it is acceptable to include single- line sets, auxiliary equipment, and trunks in a cable being used for digital keysets.

INSTALLATION

Issue 1, November 1994

TEBMINATING

THE CABLES AT

S’l%I’ION LOCATIONS

Digital

4.8

Keys&

Terminate the digital keyset station cables on four-

or six-conductor modular jack assemblies at the station

lOC&iOIlS.

4.9 Do not mount the assemblies on the wall at this time; they will be wall mounted later when the station instruments are installed. Refer to Figure 3-l below for a wiring diagram.

CAUTION

If the tip and ring is reversed when installing a digital keyset, the keyset will not function.

FIGURE 3-l.

RING

DIGITAL

KEYSET

FOR DIGITAL KEYSETS

USING FOUR-CONDUCTOR JACKS

MODULAR JACK ASSEMBLY WIRING

RING

TIP

FOR DIGITAL KEYSETS

USING SIX-CONDUCTOR JACKS

Page 3-7

IlWTALUTION

Issue 1, November 1994

Analog Station Instruments

4.10

Terminate the analog

keyset,

analog

DSS/BLF

lMX/GMX

Unit, Attendant Computer Console, single-line set, and playback device station cables on six-conductor modular jack assemblies at the station locations. (For exceptions to this, refer to the NOTE following section A on

the previous page.)

4.I.l

Do not mount the assemblies on the wall at this

time; they will be wall mounted later when the station

instruments are installed. Refer to Figure 3-2 below for a wiring diagram.

256 INSTALLATION & MAINTENANCE

If the power pair stalling a

keyset,

INTER-TELlPRACTICES

CAUTION

(W/BL, BL/W)

is reversed, in-

Attendant Computer Console, or DSS/BLF Unit will open the fuse or associated thermistor on the

Keyset

Card. If the card has a fuse, this affects operation of all station instruments connected to that card. If tip and ring (W/ BL,

BL/W)

is reversed for DC-ringing single-line

sets, the instrument may ring continuously.

FIGURE 3-2. ANALOG

WlBL w/o WIG

FOR ANALOG

SlATION

KEYSETS,

ATTENDANT COMPUTER CONSOLES,

AND ANALOG

DSS/BLF

UNITS

MODULAR JACK ASSEMBLY WIRING

BLMf WI0

WIG

FOR SINGLE-LINE SETS

AND

PLAYBACK DEVICES

NOTE: The

W/BL

and

BL/W

conductors for the

two

types of stations are reversed. If the type of station

instrument is changed, the modular jack must be rewired.

Page 3-g

INTER-TELPRACTIcEs IMX/GMX 256

ASSEMBLING THE MAIN DISTRIBUTION FRAME

INSTALLATION & MAINTENANCE

(MDF’)

BACKBOARD

5.1 The main distribution frame (IUDF) is the point at which the station instruments, trunks, and auxiliary system equipment are connected to terminal blocks (or, in the case of Tl spans and optional Tl equipment, modular jack assemblies are used instead). These terminal blocks (or modular jacks) are then connected to the 256 System. It is extremely important that the connections be made careffilly and accurately.

NOTE:

this manual outlines basic one block to one card installation using bridging clips. However, it is quite acceptable, and in some situations more additional blocks and then moss connect between them.

5.2 Assemble the MDF as follows:

To simplify the MDF installation instructions,

functional,

(1) Mount at least a 4 x 8-foot (1.2 x 2.4meter),

g-inch plywood backboard at the MDF location. (Depending on the number of stations and trunks to lx installed, a larger backboard may be necessary.)

(2)

Attach the plywood backboard. Refer to Figure 3-3 on the next page for a sample MDF block layout and cable assignments. Blocks include:

Up to 15 blocks for connecting CO trunks and the

66Ml-Xl-type

25pair

cables for the Loop/Ground Start

terminal blocks to the

to use

INSTALLATION

Issue 1. November 1994

Cards (LGCs) and/or the Loop Start Cards

(Lscs)-

Up to 15 blocks for connecting DID trunks

and the

~~0.

Up to 16 blocks for connecting station cables and the Digital

keysets; Keyset Cards (KSCs or KSC-Ds) for

analog keysets, analog DSWBLF Units, and

Attendant Computer Consoles; Single-Line

Cards

back devices; and Inward Dialing Cards

(ID&)

on-premises single-line sets and playback devices.

NOTE:

is used for wiring single-line sets and playback devices, extra terminal blocks and the use of cross-connect wiring techniques are required.

One block for connecting the RCPU Card

cable and cables for music sources, paging

equipment relay control, power failure trans-

fer equipment, night transfer equipment,

general signaling devices, etc.

(3)

If any Tl spans or any optional Tl alarm signaling devices are to be installed, attach eight-conductor modular jack assemblies to the MDF as required. (For complete information on installing Tl spans, refer to page 3-17.)

25pair

cables for the Inward Dialing

25pair

cables for the station cards

Keyset

Cards

(SLCs)

for single-line sets and play-

for off-premises extensions and/or

If, as recommended, three-pair cable

(DKSCs)

for digital

Page 3-9

lN!3TALLATION

Issue 1, November

FIGURE 3-3. SAMPLE MDF BLOCK LAYOUT AND CABLE ASSIGNMENTS

LGC OR LSC

TRUNKS

l-8 -

i f

LGC OR LSC

CO TRUNKS

9-16

1994

KSC

IMX/GMX

SLC

256

INS-TION

INTER-TELPRACTICES

& MAINTENANCE

TO CENTRAL

OFFICE

TO STATIONS

SLC

13.1

I3.lC

SLC

14.1

->* I

-1

EMC

E&M TRUNKS

1-4

DID TRUNKS

l-8

KSC

3.1

3.8

KSC RCPU

K ol

7.1

7.8

6.1

8.8

SLC

11.1

ll.lE

IIt

14.16

CARD

TO EXTERNAL

EQUIPMENT

CABLES

TO 256

Page 3-10

INTER-TELPRACTICES

IMX/GMX

256

INSTALLATlON &

MAINTENANCE

CONNECTING THE TRUNK CABLES TO

TEEMDF

lhmks

5.3

Connect the CO trunks and Loop/Ground Start

Card (LGC) and/or Loop Start Card

(LX)

cables as outlined below. Note that step 2 mentions two installation methods. Although the first method is more flexible, the second method can be used to minimize the number of terminal blocks that are used. Refer also to Figures 3-5 and 3-6 on the following pages.

Cross connect the CO trunks from the telephone

(1)

company RJ-type blocks to the righz side of the

LGC/LSC

blocks.

NOTE: For additional lightning protection, see paragraph 5.6 on the next page.

(2)

Mefhod

from the

A: Using enough

LGC/LSC

blocks to the cards, make the

25-pair

cable to run

termination cables. Attach a %)-pin female am- phenol-type connector to one end of each

LSC

cable. Label each connector and cable end

LGC/

with the appropriate slot number (for example, SLOT-15). These

oo~ectors

will be

attached to the cards after they are installed in the equipment cabinet.

Method

from the

B: Using enough

LGC/LSC

blocks to the cards, make the

25pair

cable to run

special termination cables. Attach up to three

%-pin

female amphenol-type connectors to one

end of each

3-6.

LGC/LSC

cable as shown in Figure

Connect CO trunks

l-8

to one connector, trunks 9-16 to another connector, trunks 17-24 to a third connector, and so on for each cable. Label each connector with the appropriate slot number (for example, SLOT-E). These connectors will be attached to the cards after they are installed in the equipment cabinet.

Using standard electrical tape, tape two ferrite

(3)

split beads around each 25-pair cable just below the amphenol-type connector (as shown in Figure

3-4

on the next page).

INS-TION

Issue 1,

November 1994

NOTE: Ferrite beads must be installed to meet

Part 15 of FCC regulations. Refer to REPLACEMENT PARTS for the part number.

(4) Terminate the other end of each

the left side of the corresponding

25-pair

cable on

LGCZSC

block.

(5) Install

DID

‘D-u&

5.4

Connect the Direct Inward Dialing (DID) trunks

bridging clips to complete the connec-

ti0I.B.

and Inward Dialing Card (RX!) cables as follows. Refer

Figure

3-7 on page 3-15 and Figure 3-19 on page

3-28.

NOTE: Resides DID trunks, IDCs can also be used to install single-line sets, playback devices, and

off-

premises stations. Any combination using the eight cir-

cuits on the card is possible. Refer to pages 3-21 to 3-28 for station installation instructions.

Cross connect the DID trunks from the telephone

(1)

company RJ-type blocks to the right side of the

IlX

blocks.

NOTE: For additional lightning protection, see paragraph 5.6 on the next page.

Using enough 25-pair cable to run from the IDC

(2)

blocks to the Inward Dialing Cards, make the termination cables. Attach a 50-pin female amphe- nol-type connector to one end of each IDC cable. Label each connector and cable end with the

ap propriate slot number (for example, SLOT-16).

These connectors will be attached to the Inward

Dialing Cards after the circuit cards are installed in the equipment cabinet.

Using standard electrical tape, tape two ferrite

(3)

split beads around each 25-pair cable just below the amphenol-type connector (as shown in Figure 3-4 on the following page).

Terminate the other end of each

(4)

the

Zej?

side of the corresponding IDC block.

Install bridging clips to complete the connec-

tiOIlS.

25-pair

cable on

Page 3-11

INS~TION

Issue 1,

November

1994

IMWGMX

256

INSTALLATION & MAINTENANCE

INTER-TELPRACTICES

E&M’Ih&s

5.5 Connect E&M trunks and E&M Card

@MC)

cables as follows. Refer to Figure 3-g on page 3-16.

(1)

Cross

comtect

phone company RJ-type blocks to the of the

RMC

the E&M trunks from the tele-

right

blocks.

side

NOTE: For additional lightning protection, see paragraph 5.6.

(2)

UsingenoughpaircabletorunfromtheEMC

blocks-to the cables. Attach a

EZ&M

Cards, make the termination

50-pin

female amphenol-type

connector to one end of each EMC cable. Label

each connector and cable end with the appropriate slot number (for example, SLQT-16). These

connectors will be attached to the -E&M Cards after the telecommunication cards ‘are installed in the equipment cabinet.

(3) Using standard electrical tape, tape two ferrite

split beads around each

25pair

cable just below the amphenol-type connector (as shown in Figure 3-4 below).

(4) Terminate the other end of each

the

ZejI

side of the corresponding

(5)

Install bridging clips to complete the

tiOIiS.

Lightning

Protection

25-pair

EMC

cable on

block.

connec-

5.6 For additional lightning protection, install gas discharge tubes with silicon avalanche suppressors to ground (grounding rod or copper, cold water pipe) on each CO, DID, E&M, and OPXtrunk. This must be done external to the system. Each gas discharge tube is installed directly between the telephone company RI-type block and the system’s CO/DID/E&M/OPX input. This protection should give energy absorption and filter low-

level surge potentials. (For installation instructions and specific recommendations, contact Customer Support.)

5.7 Also, in areas with frequent occurrences of lightning, it is recommended that the cable between the telephone company RJ-type blocks and the gas discharge tubes be at least 75 feet long (the cable may be coiled up

if desired).

:‘!,

FIGURE 3-4. EXAMPLE OF FERRITE BEAD INSTALLATION

AMPHENOL-TYPE

CONNECTORS

25-PAIR CABLES

TO THE MDF

FERRITE

BEADS

Page 3-12

INTER-TELPRAcTICE!3 IMX/GMX

256 INSTALLATION &

FIGURE 3-5. LGC/LSC BLOCK CABLE TERMJNATIONS (METHOD A)

MAINTENANCE

1.1 1,-

RIUG-

TIP-

121r-12----

RING

LGC/LSC

----

INSTALIATION

Issue 1, November 1994

TEE0

LOOP/GROUND

START CARD OR

LOOP START

CARD

AMPHENOL-

TYPE

CONNECTOR

66Ml-SO-TYPE

BLOCK

(PART OF

MDF)

Page 3-13

INS-TION

Issue 1, November

1994

IMX/GMX

256

DKIXLLATION 2%

lNTER.TEJaPRAcTIcEs

MAINTENANCE

FIGURE 3-6.

FEMALE AMPHENOL-TYPE CONNECTORS

LGC/LSC BLOCK CABLE TERMINATIONS (METHOD B)

LGWLSC

66Ml-50-TYPE BLOCK

(PART OF MDF)

l-2

WraL-oRR

6-16

Rm-aw

TRUNK6 17-24

25-PAIR

CABLE TO

MDF

17-24

f&WV

Page 3-14

INTER-TELPRACTICES

IMX/GMX

256 INSTALLATION &

FIGURE 3-7. IDC BLOCK CABLE TERMINATIONS

INWARD

DIALING

CARD

MAINTENANCE

RING

np -

1.2 1I- 1.2

RINB-

1.8

RING

RIO

R/BR

BRlR

SIR BKBL AC ENABLE

BL%K

NoTusED

. 1.11

IDC

1.1

1.8

1.1

INS-mON

Issue 1, November

1994

TELCO

~~-

AMPHENOL-

TYPE

CONNECTOR

66Ml-%-TYPE

BLOCK

(PART OF MDF)

NOTE: The AC Enable terminations shown above are used only when installing single-lines sets and playback devices, not DID trunks. For information on their use, refer to the following pages.

Page 3-15

IN-TION

Issue 1, November

1994

IMX/GMX

256 INSTALLATION & MAINTENANCE

INTER-TELPRACTICES

FIGURE 3-8. EMC BLOCK CABLE TERMINATIONS

EMC

TELCO

E&M

CARD

AMPHENOL-

TYPE

CONNECTOR

,--Id

66Ml-50-TYPE

BLOCK

(PART OF MDF)

TELCO

NOTE: Depending on the area of the country and/or the specific type of E&M trunk ordered, one or more of the cable pairs shown above may not always be needed. For each E&M trunk to be installed, terminate all cable pairs provided by the telephone company, as shown in the

Page 3-16

pinout

above.

INTER-TELPRACTICES

IMX/GMX

5.8

The installation procedure

spans at the tion used by the telephone company and how close it is to the MDF. The Tl spans may be terminated on RJ48C modular jacks or on RJ-type terminal blocks.

5.9 Follow one of the three Tl termination methods (A, B, or C) outlined on the following pages.

NOTE: The Tl span is typically connected to the standard RJ4gC jack provided on the Tl Card. However, in certain situations (e.g., when using an external

equipped with a venient to use the card’s optional instead. Refer to page

Method A- Tl Spans Terminated On RJ4SC Jacks Near The MDF

5.10

the MDF as outlined in below.

Method B - Tl Spans Terminated On RJSSC Jacks Away

256

INS-TION

CONNECTING Tl

MDF

is dependent on the type of termina-

DB15

Install Tl spans terminated on RJ4gC jacks near

Plug one end of a four-pair, non-reversing (straight through), mod-to-mod line cord into each telephone company RJ48C jack. The other end of each line cord will Zater be plugged into the Tl jack on the corresponding Tl Card.

NOTE: Make sure the connectors on the ends of each line cord are properly attached. If any of the wires are cracked or broken, Tl transmission problems can occur.

Fom

!3PANS

connector), it may bc more con-

3-20

The

MDF

MAIlQTNAlKl3

TEE

MDF

used

to connect

CSU

DB15

connector

for more information.

INSTALLATION

Issue 1, November 1994

Mount one eight-conductor modular jack assem-

(1)

bly next to each telephone company RJ48C jack. For each modular jack assembly mounted in step

(2)

1, also mount a corresponding modular jack assembly on the MDF backboard.

To connect the modular jack assemblies

(3)

mounted in steps 1 and 2: a. Run Tl cable between the

modular jack assemblies.

NOTE: If the telephone company termination is more than 2000 feet from the MDF, special Tl cable for cable specifications). For shorter distances, two lengths of standard two-pair voice-frequency cable (one cable for transmit

and one cable for receive) may be used in-

stead.

Wue

each end of the cable onto their respec- tivemodular jack assemblies. Refer to Figure 3-10 on the next page for a diagram of the wiring.

At the telephone company termination, plug one

end of a four-pair, non-reversing (straight through), mod-to-mod line cord into each RJ4gC

jack and plug the other end into the correspond-

ing modular jack assembly next to it.

At the MDF backboard, plug one end of a four-

(5)

pair, non-reversing (straight through), mod-to- mod line cord into each modular jack assembly. The other end of each line cord will

plugged into the Tl jack on the correspondingT1 Card.

uzu.rf

eightconductor

uuresponding

be used (see page

later

2-20

5.11 Install Tl spans terminated on RJ48C jacks away from the MDF as outlined in the following steps. Refer

to Figure 3-9 on the next page for a diagram of the complete layout.

Page

3-17

NOTE: Make sure the connectors on the ends of each line cord are wires are cracked or broken, Tl transmission problems can occur.

proFrly

attached. Ifauy of the

INSTALLATION

Issue

1, November 1994

FIGURE 3-9, Tl SPAN

IMX/GMX

TERMINATIONS

256 INS’ICAUATON & MAINTENANCE

FROM

INTER-TELPRACTICES

RJ4SC

JACKS

FOUR-PAIR, NON-

REVERSING,

MOD-TO-MOD

LINE CORD

JACK

CABLE

EIGHT-CONDUCTOR

MODULAR JACK ASSEMBLIES

FOUR-PAIR, NON-

REVERSING,

MOD-TO-MOD

LINE CORD

FIGURE 3-10. MODULAR JACK ASSEMBLY WIRING FOR Tl SPANS

MODULAR JACK ASSEMBLY FOUR-PAIR, NON-

REVERSING,

MOD-TO-MOD

LINE CORD

‘2

34 --

RING

w-n

TIP1

(IN)

NOTE: OUT = transmit to network, IN = receive from network

RING 1

UN)

Page 3-18

Tl CARD

RJ48C

JACK

INTER-TEL+PBACTICES

IMNGMX

256 INSTALLATION & MAINTENANCE

INSTALLATION

Issue 1, November 1994

Method C- Tl Spans Terminated On An

RJ-‘Qpe

5.12 Install the

Block

spans as outlined in the following steps. Refer to Figure 3-11 below for a diagram of the complete layout.

(1) On the MDF backboard, mount one eight-con-

ductor modular jack assembly for each Tl span termination on the telephone company RJ-type block(s).

(2) Connect Tl cable between the telephone compa-

ny terminations and the corresponding modular

jack assemblies as follows:

NOTE: If the telephone company termination is more than 2000 feet from the MDF, special

cable must be used (see page 2-20 for cable specifications). For shorter distances, two lengths of standard two-pair voice-frequency cable (one

FIGURE

3-W Tl

SPAN TERMINATIONS FROM R&TYPE BLOCKS

cable for transmit

and one

cable for receive) may

be used instead. a.

Terminate one end of a six-pair cable on each

modular jack assembly. Refer to Figure 3-10 on the previous page.

Terminate the other end of the six-pair cable on the

right

side of the Tl R&type terminal

block.

Plug one end of a four-pair, non-reversing (straight through), mod-to-mod line cord into each modular jack assembly (mounted in step 1). The other end of each line cord will

later

plugged into the Tl jack on the correspondingT1

Card. NOTE: Make sure the connectors on the ends of

each line cord are properly attached. If any of the wires are cracked or broken, Tl transmission problems can occur.

TELCO

CABLE

FOUR-PAIR, NON-

REVERSING,

MOD-TO-MOD

LINE CORD

EIGHT-CONDUCTOR

MODULAR JACK ASSEMBLY

Page 3-19

INS’lXLLAl”ION

Issue 1, November

1994

IMXIGMX

256

INS’rALLATION &

lNTER-TELPRACTIcEs

MAINTENANCE

Using The Optional The

RJ4SC

Jack

DBl5

Connector In Place Of

5.13 The three Tl installation methods described on

the preceding pages show the Tl span being connected to the RJ48C jack on the Tl Card. However, in certain situations (e.g., when using an external CSU equipped with a DB15 connector), the installer may wish to use the card’s optional

The pin functions of the Tl Card

5.14

DB15

connector instead.

DB15

connec-

tor (U-pin subminiature “D” female connector) are as

follows:

FIGURE 3-12.

MALE DB15 CONNECTOR

TO Ti SPAN TOT1 CARD

USING THE Tl CARD’S OPTIONAL

To connect the

5.15

a DB15 connector coming

28AWG,

twisted-pair ribbon cable with a maximum

DB15

connector on the Tl Card to

from

the Tl span, a flat,

capacitance of 16pF/ft. may be used for distances of up to 50 feet, as shown in the figure below. For distances longer than 50 feet, use the special high-speed data

cable described in paragraph 3.91 on page

DB15

CONNECTOR

MALE DB15 CONNECTOR

2-20.

TP(Out)

Ring (Out) 9

Ring 1 (In) 11

lip 1 (In) 3

-15

NOTE: OUT = transmit to network, IN = receive from network

1 -fiP(Out)

9 Ring (Out) 2 10

Tip

1 (in) 11 Ring 1 (in) 4

12 5 13

14 7

Page 3-20

INTER-TELPRACTICES IMX/GM.X

256

INSTAlLLATION &

MAINTENANCE

INSTAUATION

Issue 1, November 1994

COlWECTlNG S’IATION

MDF

5.16

Each type of station instrument is comtected to a specific station card. Digital keysets are connected to

DKSCs.

Attendant Computer Consoles are comtected to KSCs or KSC-Ds. Single-line sets and playback devices are connected to SLCs and/or IDCs.

NOTE:

off-premises extensions, IDCa can also be used to install DID trunks. Any combination using the eight circuits on the card is Possible. Refer to pages 3-11 to 3-15 for DID

trunk installation instructions.

5.17 After the

the 25-pair cables to the station blocks on the MDF as follows:

Analog

Resides single-line sets, playback devices, and

Ensure that both ends of each station cable are la-

(1)

beled with the circuit number of the associated station instrument.

Terminate each station cable on the

(2)

the corresponding station block. Refer to Figures 3-13 through 3-19 on the following pages for station cable terminations.

NOTE: For simplicity, Figures 3-18 show digital keysets, single-line sets, and playback devices being installed using one-pair cable and four-conductor modular jacks. Of course, if three-pair cable and six-conductor modular jacks are used instead (as is

keysets,

station cables are run, connect them and

analog

CABLES TO THE

DSS/BLF

Units, and

right

3-13,3-17,

side of

and

recom-

mended), extra terminal blocks and the use of cross-connect wiring techniques are required.

Using enough

(3)

block to each station card in the equipment cabinet, make the termination cables. Attach a

50-pin female amphenol-type connector to one

end of each cable. Label each cable end with the appropriate slot number (for example, SLOT-2). These

tached to the station cards after the circuit cards

are installed.

Using standard electrical tape, tape two ferrite

split beads around each 25-pair cable just below the amphenol-type connector (as shown in Figure 3-12).

NOTE:

Part 15 of FCC regulations. Refer to REPLACEMENT

Terminate the other end of each 25-pair cable on

the

Zefi

side of the corresponding station block.

NOTE: lf necessary, any of the eight circuits on

an IDC can be enabled for with off-premises extensions or on-premises

AC-ringing equipment. To do this, each circuit

can be strapped directly at the IDC terminal block (as shown in Figure 3-18 on page 3-27) or on the card itself (as described on page 3-51).

DO NOT

(6)

sistance tests have been performed (as described on page 3-29).

25pair

cable to run from each

connector

co~ectors

Ferrite beads must be installed to meet

PAWTS

for the part number.

AC ringing to be used

attach bridging clips until the loop re-

will be at-

and

Page 3-21

INSTALLATION

Issue 1, November 1994

FIGURE 3-13.

DIG+

IMXIGMX

256INS~~ON

INTER-TELPRACTICES

&MAINTENANCE

KSC BLOCK CABLE TERMINATIONS FOR

KEYSETS

, . .

DIGITAL

KEYSET

CARD

RING

np -

121~,,~1.!21--‘-

RING

1.8.11

RING

DKSC

1 l-1.1.1

Jy.8.1

--me

MODULAR

JACK

ASSEMBLY

TO DIGITAL

KEYSET

TO DIGITAL

KEYSET

AMPHENOL-

TYPE

1 ‘-&---I

CONNECTOR

66Ml-50-TYPE

BLOCK

(PART OF

MDF)

NOTE: For simplicity, this figure shows keysets being installed using one-pair cable and four-conductor modular jacks. Of course, if two-pair cable or three-pair cable is used instead, extra terminal blocks and the use of cross-connect wiring techniques are required. Note that tip and ring are

connected

to the

secondpuir

terminals (black and yellow) on the modular jack.

Page 3-22

lNTER-TELPRACTIcEs

IMX’GMX

256INSTALIATION & lMMNTENANCE

FIGURE 3-14. ANALOG KSC BLOCK CABLE TERMINATIONS

INSTAz;LATION

Issue 1, November 1994

KSC

MODULAR

KEYSET

CARD

AMPHENOL-

TYPE

CONNECTOR

66Yl-S&TYPE

BLOCK

(PART OF

MDF)

SLMIGMJ

olw ml

G/WSEC

MODULAR

JACK

ASSEMBLY

TO KEYSET,

ATTENDANT CONSOLE,

OR DSSBLF

Page 3-23

IN-TION Issue 1, November

1994

IMX/GMX 256INsTALcATON & MAINTENANCE

INTER-TELPRACTICES

FIGURE 3-15. INSTALLING S-LINE IMX AIM

MDF

KEYSETS

TWO TO A CIRCUIT

CIRCUIT 1 .lA

CIRCUIT 1.1A

KSC-D

MDF

BLOCK

CIRCUIT

l.lA

CIRCUIT

l.lB

NOTE: This illustration shows three common methods for installing two 8-line IMX

KSC-D circuit. For a detailed wiring diagram of method A, refer to the following-page.

Page 3-24

AlM

keysets on a single

INTER-TELPRACTICES IMXGMX 256INSTAL.LA’TION &

MAINTENANCE

INSTALLATION

Issue 1, November 1994

FIGURE 3-16. KSC-D BLOCK CABLE TERMINATIONS FOR &LINE IMX AIM

KEYSETS

INSTALLED TWO TO A CIRCUIT

MODULAR

KSGD

--k-l-r

CIRCUIT 1

MODULAR

-fi I

BWOND

om PRI

WSEC

ASgEMBLY

CIRCUIT 1 .l B

I I

.lA

JACK

TO S-LINE AIM KEYSET

66Ml-50-TYPE

BLOCK

(PART OF

NOTE: This illustration details one common method for wiring two Mine IMX

KSC-D circuit. For a simple illustration of some alternative installation methods, refer to the previous page.

MDF)

Page 3-25

WF;

SEC

Alh4

keysets to a single

INSTALLATION

Issue 1, November

1994

IMX/GMX

256

INSI’AUATION &

INTER-TELPRACTICES

MAINTENANCE

SINGLE-

LINE

CARD

FIGURE 3-17.

SLC BLOCK CABLE TERMINATIONS

MODULAR

JACK

ASSEMBLY

TO SINGLELINE SET OR PLAYBACK DEVICE

MODULAR

JACK

wmnp

TO SINGLE-

LINE SET OR

PLAYBACK

DEVICE

AMPHENOL-

TYPE

CONNECTOR

66Ml-W-TYPE

BLOCK

(PART OF MDF)

NOTE: For simplicity, this figure shows single-line sets and playback devices being installed using one-pair cable and four-conductor modular jacks. Of course, if three-pair cable and six-conductor modular jacks are used instead (as is recommended), extra terminal blocks and the use of cross-connect wiring techniques are required.

Page 3-26

Inter-Tel IMX 256, GMX 256 User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

OVERVIEW

SPECIFICATIONS

INSTALLATION