Comdial 616 User Guide

COMDIAL

Executech II

• Installation

• Maintenance

• Programming

-I

1311 66-Q31 July, 1986

INSTALLATION AND MAINTENANCE INFORMATION

FOR THE MODEL 616

ELECTRONtC KEY SYSTEM

SERIAL NUMBER

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IMI 66-031

TABLE OF CONTENTS

CHAPTER

1 INTRODUCTION

. . ..*..................................

SECTION 1 GENERAL INFORMATION

MANUAL SCOPE

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

GENERAL DESCRIPTION

KEY SYSTEM

SPECIFICATIONS

SECTION

FEATURES

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

INSTALLER/USER INFORMATION REGARDING FCC

RULES AND REGULATIONS

CHAPTER 2 INSTALLATION

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

MOUNTING.CONSIDERATIONS CABLE ROUTING

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

CONNECTIONS ...........................................

CHECKOUT

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

SYSTEM CLOCK INFORMATION

CHAPTER 3 OPERATION

BASIC OPERATION

FEATURES OPERATION

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

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

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

OPTIONAL FEATURES OPERATION STATION OPERATING CONDITIONS SMDR AND COS PRINTOUT

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

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

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

. . . . . . . . ..A...............

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11% 20

34 38

CHAPTER 4 SYSTEM PROGRAMMING

GENERAL INFORMATION

BASE LEVEL PROGRAMMING ENTRY

SYSTEM COS LINE COS

STATION COS

CHAPTER 5 MAINTENANCE

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

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

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. . . ..*......a...........................

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

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SECTION 1 TECHNICAL ASSISTANCE AND REPAIR SERVICE........7 1

SECTION 2 TROUBLESHOOTING

CHAPTER 6 REPLACEMENT PARTS

PUBLICATION INDEX

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. . . . . . . . . ..a.....................

53 53

54 59

71 76

Introduction

IMI 66-031

CHAPTER

INTRODUCTION

SECTION 1

GENERAL INFORMATION

MANUAL SCOPE

This publication contains installation and maintenance information for

the Model 816 electronic key system and associated electronic key

telephone sets.

The installation procedures detailed in this manual, for the most part,

should be performed by a trained technician.

service items may, however,

be performed by any user at his or her

The following

discretion. All other servicing must be performed by factory authorized personnel.

Place or replace any designation strips on the face of the telephone.

Replace the telephone line or handset coiled cord.

Replace telephones and handsets.

The handset is a special type.

Other handset types will not work properly.

: ;

Relocate the telephone when it is plugged into the proper system jacks.

RELATED INFORMATION

IMI 01-001 Compliance Requirements To FCC Rules and Regulations Part 68 and 15

IMI 01-005 Handling Of Electrostatically Sensitive Components

User's Guide (supplied with the stations)

GENERAL DESCRIPTION

The Model 816 electronic key system consists of an electronic Key

Service Unit (KSU),

(stations),

and interconnecting wiring consisting of small, 4-wire,

dedicated electronic key system telephone sets twisted-pair cable.

This electronic key system is designed to not only provide the economy and features of a conventional "lA2 type" system but also a much easier installation made possible with small size wiring.

Advanced

operating features are made possible by the electronic technology used

in the KSU and the dedicated key system telephone set.

The system is

equipped for a maximum of 8 lines and 16 stations.

x-----------T---_,

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Introduction

IMI 66-031

The KSU is a fully electronic key service unit.

It is essentially a

special purpose computer system acting as a communications controller

between TELCO or PABX supplied lines and propriatery 3-line and 8-line telephone stations.

The KSU is contained in a functional, modern-style metal housing of contemporary design in keeping with the needs-of the modern offlce

enviroment.

.It is engineered to be wall or rack mounted.

-WThe telephone set is an electronic,

It is desi

access to

ned to allow not only multiline pickup but also single key

eatures available from the serving TELCO or PABX switch.

microprocessor-controlled device.

All stations are equipped with standard modular jacks. The telephone sets are available in 3-line (S-button) and 8-line

(lo-button) handsfree dialing models: 3-line and 8-line full speakerphone models; and an B-line, busy lamp field.

KEY SYSTEM The

electronic key telephone system provides a broad range of

features.

FEATURES

Some of the features are a permanent part of the system

handsfree dialing model with a

, * -.

while others are programmable as part of the system or station

rogramming procedure.

eatures.

The following paragraphs describe the

&W&%4&8~~~~ Access to particular lines can be denied to certain stations in the

system through system programming.

This access denied feature is

programmable on a per line/per station basis.

4b@JGQ Canferance &4Ji!&&W

This system feature allows the stations, mode,

to add another station to an existing call or to a.multiline

while operating in a private

call.

WW.WW&&MQ~ All-call and zone paging allows the system stations to be used to

receive or originate one-way messages in order to find, notify, or summon someone.. A station can be enabled by-programming to receive

all-call and zone paging messages through the station speaker, and to

originate them using the station handset.

to only

receive messages‘or programmed to orignate messages as well.

A station can be programmed

The programming can enable zone paging in up to four different zones

or system-wide,

all-call paging.

Each station can be programmed

in any or all zones for both receiving and originating messages.

The

Introduction

IMI 66-031

system defaults to system-wide,

stations having both receive and originate capability.

A station port can be programmed to interface with an external paging

amplifier.

system.

external paging amplifier.

the stations in the system with the line select key.

be dialed through the line paging port to provide zone selection if

dialed zone selection is available at the external paging amplifier.

If an on-hold party hangs up at the TELCO/PBX end of the communications link, causing an interruption in the tip/ring line

current,

return it for service. The line select indicator will turn off to

indicate an idle line condition.

If the intercom line is selected while an outside line call is active,

this system feature will cause the outside call to be automatically

placed on hold.

It can be dial accessed from the other stations in the

A line port can also

the system will drop the line off of the hold condition and

all-call paging in zone D with all

programmed to interface with an

This paging amplifier can be accessed from

DTMF tones can

A system feature provides automatic privacy on all lines at every

station. station on an active line unless that station user allows it.

programming, normally non-private.

particular station,

that station user on the non-private line.

by pressing that line select key on their station.

An automatic redial of the last dialed number is available at every

station.

by this feature.

select a line, It will do this once a minute for 10 minutes.

Automatic privacy prevents other stations from joining a

Through

the system can be configured so that certain lines are

When the non-private line is in use at a

users of other stations in the system can join

This can be accomplished

busy number or unanswered call is automatically redialed

Once automatic redial is selected, the station will

automatically dial a number, and wait for a response.

Introduction

IMI 66-031

The user must lift the handset to complete the call voice link. Lifting the handset or pressing any other key will cancel further

automatic redial action.

Users of the optional speakerphone station

can complete the call voice link by pressing the MONITOR OFF key

instead of lifting the handset.

The system will detect an A-lead contact closure on certain incoming

lines.

When the system detects an A-lead contact Closure by an

external device connected to one of these lines, it causes a busy line

light indication for this line to appear at all the stations in the system.

This A-lead contact closure provides detection only.

The

system does not send any A-lead signal to the external device

connected to the line.

Pressing the line select key on a system

station cannot interrupt the external A-lead device unless the line is

programmed to be non-private.

X_/

;

Refer to the discussion titled

G&&!J@?~&UU~&~

2&J&Q&&

The system provides basic, lA2 type features. selective line pickup, common line,

hold, and multiline pickup and

Features such as

hold are available at every station.

'The system programming is electronically protected by a "super-cap"

device during an AC power failure.

The stored program data will

remain in memory for a minimum of W-*:hours after AC power fails or is disconnected,

those models,

at least 30 minutes after an AC power failure or disconnect.

Some key system models include a system clock. On

the system clock will continue to run and keep time for

There is an optionally available 8-line telephone station equipped with 14 visual indicators adjacent to the memory keys.

This station

provides all of the available features in addition to a Busy Lamp Field (BLF) display.

The visual indicators of this station display the status of the Direct Station Selection (DSS) intercom stations provided by the system at the key locations.

-4

Introduction

IMI 66-031

The internal speaker at each station provides call-announce capability over the intercom link. can be made.

This response is transmitted by the microphone built into

A handsfree response to a call-announce call

the handset.

Call transfer allows incoming calls to be transferred from one station

to another,

via the intercom link, in one of two ways. If both

stations have access to the incoming line, a common line pickup transfer can be effected.

to the incoming line,

transfer feature.

transfer can still take place using the system

Some transfer considerations are as follows:

If the other station does not have access

If a

transfer is attempted when there is no call on hold, the station being transferred to will receive the intercom dial tone, and the transferring station will be dropped from the intercom line.

If a transfer is attempted and the station being transferred to does not answer the intercom call,

the transferring station will reconnect to

the call.

Contact points are available which provide relay contact closures whenever an incoming line rings and whenever station 17 rings.

The

contact closures track the ringing pattern and can be used to control

an external signalling device. When certain station ports are

prrogrammed to function as PA ports, enable contacts.

They close when the PA port is called and can be

these contact closures become

used to enable an external PA system.

~11 class of service (COS) programming is performed from station 100 COS programming is used by the installer to configure and maintain the system, line, and station operating conditions.

Class of service and toll restriction records can be received and printed by any RS-232 compatible serial printer which is capable of

operating at 110/300 baud.

At initial power up of the system,

the operating features are set to a

specific group of operating conditions (default conditions). The

default conditions provide a complete operating system for use. It

can be left as a defaulted system or reprogrammed as desired. Default

conditions can be restored, if desired, by programming action.

Introduction

IMI 66-031

W.nsQ~&L~~ _ ._

The system attendant station (station 10) can be called whenever the 0

key is dialed on the intercom line.

The ringing pattern of an incoming call follows the ringing pattern of

fhe TELCO or PBX system. intercom call presents two tone bursts sounded every 4 seconds. A

voice signalled intercom sounds two tone bursts one time.

Any station can be set to a do-not-disturb mode with the MONITOR.

key.

call nor will it accept an intercom call.

The DSS/BLF Console is an optional console device designed to be a

companion to a regular system station.

volume systems which require a dedicated call transfer location. console provides 24ikey direct station selection (DSS) intercom and an

associated busy lamp field (BLF). system-wide! all-call paging.

to any station port and serve as a companion to the station connected

to the adjacent data-line paired port. a system does not affect any features currently available to the companion station.

While in this mode,

The ringing pattern of a tone signalled

the station will not ring on any incoming

It is useful with high call

The

It also provides one-key access to

The console is designed to be connected

Installation of this option to

duda-

A faceplate mounted volume control on each station can be adjusted to

set the audio level of the call announce speaker output, A bottom

mounted volume control on each station can be adjusted to set the

audio level of the tone ringer.

The system can accept DTMF tones from a station, send them through the TELCO network, call completion at the distant system. dialing mode can be performed from every station in the system.

Pressing the HOLD key twice, exclusive hold. condition.

timed hold recall timeout feature. call from being picked up at any other station during the programmed

timeout period. occur and the exclusive hold condition will revert to a normal line

hold condition.

4ikxaas

and hav.e them received at the distant end for inward

442su

After timeout,

&?a&

when placing a call on hold, effects an

Exclusive hold links the held call to the

&4&s&4

Exclusive hold prohibits the held

audible and visual signalling will

Ji$&2sa U8W

This conventional, off-hook

Introduction

IMI-66-031

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Each station

intercom for

comes equipped

stations 12 through 25. effected by pressing the intercom select key and then pressing one of the memory keys. This action completes a voice announced call to the selected station. Any active outside line is automatically placed on hold when the intercom select key is pressed.

When custom calling features are available via a .flash" signal, the

system can be programmed so that the RECALL key will generate a

"flash" signal when it is pressed.

not available,

the system can be programmed to allow the RECALL key to act as a positive disconnect or dial tone recall key. features are mutually exclusive.

provide only one of these features at a time.

with a built-in direct station select

Access to these stations is

intercom

When custom calling features are

These two

The system can be programmed

’

Flexible ringing assignments are programmable on a per line/per station basis.

for every line at every station;

delayed ringing for all other lines;

The system can be configured to provide direct ringing

direct ringing for prime line with

and prime line ringing only.

Ringing can be disabled for each line on an individual basis at each station.

Subdued ringing is automatically provided to any station

that is busy on an outside line.

The station handset is compatible with magnetically-coupled hearing aids.

The light associated with the line select keys provide a visual

indication of the in-use and hold status of each line available for

use at a particular station.

Refer to the discussion titled, a a B&S &JJJ&JJ~ J&J&-~,

Introduction

.._J

IMI 66-031

’

Should the intercom line be selected with no subsequent action

place,

the system will timeout the active status and return the

taking

station to an idle state.

Bach station is equipped with a last number redial feature.

This

feature will save the last number manually dialed from the keypad. It

will redial the saved number upon key command.

A newly dialed number

will automatically replace a currently saved number.

If a station is programmed to include a prime line, this line will be automatically selected for a manual dialing operation when the handset

is taken off hook.

If the prime line is busy,

a manual line selection

must be made.

Auto dial and speed dial numbers can be programmed to include any

particular line desired.

When this is done,

dial operation automatically selects that line for dialing.

that line be busy,

manual line selection must be made.

selected manually for a speed dial call,

an auto dial or speed

Should

(If a line is

either station or system, press the HOLD key before pressing the speed dial key on the key pad.1 If a particular line is not programmed for selection as part of the auto or speed dial,

automatically chosen.

the prime line (if programmed) will be

If the prime line is unavailable or busy, the

last line used to originate a call will be chosen.

Other than the prime line or the auto/speed dial line selection, automatic preselection of a line is not part of the system.

A line can be manually selected before lifting the handset (for handsfree dialing) or after the handset is lifted.

The key pad is automatically

set for manual dialing when a manual line selection is made.

A key activated feature at each station will place a PBX or TELCO line on hold and provide music-on-hold to the held party if that capability is available.

Pressing the HOLD key once effects a normal timed hold condition.

station which has access to the line can pick up the held call.

Any

The

normal hold condition will hold a call for a programmed length of

time.

At the end of the first timeout period, the line select

indicator will flutter rapidly at all stations and three quick tone

bursts will sound at the holding station. subsequent timeout period,

the holding station receives an additional

At the end of each

three quick tone bursts.

IMI 66-031

mbsf(eus,SneedDialL .- _

lrammable.memory dialing features available

These memory keys can be programmed to

.c dialing purposes.

The stored numbers can lth and can include line or intercom ', pauses, and flash signals. A pause is

key is pressed,

.s pressed. ,tely,

memory location 14 can provide

and a flash signal is stored

The pause and flash intervals

.ing of the last number dialed if a memory tat location.

‘

IMI 66-031

ghen it is actuated. Th Itions with a programmed

sting a non-electronic

2500. This voice pair thenever there is an AC lg on this power failure

condition.

The power

:t as soon as power is

‘.

lmmed to provide 10 speed dial numbers at the .umbers can be up to 150digits in length and ntercom selection, numbers, Q'S, *'s,

ddition to the station speed dial numbers, numbers are available at the keypad keys. ers can be up to 31 digits in length, and

,mation as described above. %ystem speed

be done at station 10.

mixture of 3-line and 8-line telephone

can be standard,

handsfree stations or full

ly interconnected by employing industry

and modular plug/jack combinations.

-conductor,

tary contact, press and release types.

11 monitoring,

twisted-pair cable throughout

They

and other feature selection.

eature selection is provided by built-in

’

lower on indication and

all other stations are

line unless that station

ws a station user to

ions can be added to an

lection and a station

DSS memory key.

When this

tomatically placed on hold atically made to that

llow one or more stations to access two

time resulting in a multipath conversation.

distant parties'

stations is dependent upon

lines. If more than one internal station

the voice levels may be lower than when a

involved.

xtory.

ial and station speed

This director

ial

4sis to allow the stations

needed.

Alternately, the

:one dialing.

Introduction

IMI 66-031

The system can be programmed on a per station basis to enable

line preference.

station,

taking it off-hook will automatically connect it to an

outside line which has audible ringing.

When ringing line preference is enabled at a

A line select key will not

ringing

have to be pressed.

This feature enables a key action to save the last number manual1

dialed from the keypad.

The same key action will redial the

save number when it is pressed at a later time. The saved number is permanently available for later use until it is replaced with a new

number.

Each station can execute a self test when so enabled.

The optional speakerphone provides full handset free operation of all

features except voice signalled intercom calls.

The handset must be

used for this purpose.

Refer to the discussion titled, &JJQ~ U&,&Q Em

The SMDR feature allows a record of calls to be kept for each Station'

in the system. Call record data may be received and printed by any

RS-232 compatible, 110/300 baud.

serial printer which is capable of operating at

This feature records the number of the TELCO line used

and the digits dialed (up to 32 including up to 8 t's and *'s for billing code information).

and outgoing calls greater than 20 seconds in length. incoming calls,

line is kept.

the answer time (in tenths of a minute) for a ringing

The call record is presented at an RS-232 level as

ASCII transmit data on terminals at the station connector block. call record is presented as it is taken.

maintained for later recall.

These records are kept for all incoming

In addition, on

The

No mass storage of data is

Communications are one-way to the

printer only.

The system programming selects the timeout period for a call on hold. When a held call exceeds the timeout period, the system audibly signals the condition to the station that placed the call on hold. It I._

also visually signals all other stations. The audible signal is

repeated at the end of each time out period.

The visual indication

continues until the held call is picked up.

Introduction

.-.

IMI 66-031

System toll call restriction can be configured, by Class Of Service programming, range of number combinations. The restricted numbers are specified

to prohibit some or all stations from calling a wide

programmable restricted number tables which are assigned on a per station and per line basis.

In general,

of restricted numbers contain entries of up to 16 digits each.

toll restriction works as follows: The programmable tables

Each

table of restricted numbers can be programmed to be an "allowN table

or a "deny"

in a "deny" table.

table with entries in an "allow"

This feature allows exceptions to toll restriction

to be enabled. For example,

the dialing of all 1-xxx-xxx-xxxx numbers

table overriding entries

can be denied while the dialing of l-8000xxx-xxxx numbers is enabled. A "match anything"

from 1 to 0.

The programmed toll restriction tables are individually

symbol (t) can be stored to represent any digit

assigned to each station and line.

When a line selection is made and a station is dialed, the system

examines the dialed number and makes a comparison between the station toll restriction tables and the line toll restriction tables.

Any

tables assigned to BOTH the station being used and the selected line

determine the toll restrictions to be imposed.

Dialing a restricted number on a restricted line from a restricted station will cause the line to be automatically disconnected for 2 seconds.

The intercom feature links the stations of the system together.

intercon paths are available on the Model 816 system.

Intercom calls

Four

can be tone signalled or voice announced as desired, and can be

responded to in a handsfree manner.

Intercom call progress is marked by special tone signals. A visual indication is presented when all of the paths are busy.

A special adapter is available which will allow a station to be mounted on a wall.

zWU&&s

Refer to the

discussion titled, m &j &g &Q&J &T& &J&&Q

snaaw SPECIFICATIONS

The general specifications of the

Model 816 electronic key system are

shown in Table 1

Introduction

IMI 66-031

Table

System -

System Capaclty -

Lines Stations Intercom Links Paging Link

Power Dissipation -

KSU and power supply @ 117VAC nominal, fully loaded system

Dimensions and Welghts -

KSU width (inches)

height depth

KSU pounds

Keyset footprint (inches) Keyset pounds (lb-ot)

Cable Requirements -

Station cable, P-pair twisted, non-shielded 24AWG Maximum cable length 1500 feet

A-Lead Control

Maximum Resistance of 1500 Ohms

Power Requlrements -

KSU and power supply

Input: 117 VAC + 10% 0.4 AMPS, 80H2, single phase

Switching Principle -

Solid state space division analog switching with stored program control.

Operating Environment -

Temperature: 32-120” F (O”-43.3”C) Humidity 90% relative, noncondensing

Industry/Regulatory Standards -

FCC certified, part 15a FCC registered, part 88 UL Listed (in process) EIA RS478, Bell Pub 48002 guidance Hearing aid compatible

Termlnatlon

Individual 623 -type four-conductor minijacks; USOC’s RJll C (or RJlPC with A/Al leads

Termination for Stations -

25pair connector for connection to external distribution field.

Central Office Limits -

Maximum 1900 OHMS loop, minimum 15,000 OHMS cable insulation leakage.

CO/PBX Line Ringer Equivalence Number -

REN 0.3B

FCC

Reglstratlon Number -

CVW7WC-12829-KF-E

Station Message Detail Recording (SMDR) Port -

Format: Serial, pseudo RS-232C (transmit only) Parity: None Data Bits: 7 Stop Bits: 2 Baud Rate: 300/l 10 COS programmable Handshaking Requirements: CTS (if available) from printer to KSU

Printer Cable Length: 50 feet maximum from KSU to printer

Loop Limits

for Outside Llnes -

General Specifications

RTS (if needed) from KSU to printer

for lines 7 or 8).

Model

818

55 watts

15x!

7%x8%

2-10

. .

--)

.._

Introduction

SECTION

INSTALLER/USER INFORMATION

REGARDING FCC RULES AND REGULATIONS

IMI 66-031

This electronic key system complies with Federal Communications Commission (FCC) Rules, Part 68.

The

FCC

registration label on the

KSU

contains the FCC registration

number, the ringer equivalence number, the model number, and the

serial number or production date of the system.

NOTIFICATION TO TELEPHONE COMPANY

Unless the telephone operating company provides and installs the

system, the telephone operating company must be notified before a

connection is made. registration number,

the telephone company.

The lines (telephone numbers) involved, the FCC

and the ringer equivalence must be provided to

The FCC registration number and the ringer equivalence number of this equipment are provided on the label attached to the KSU.

The user is required to notify the telephone company when final disconnection of this equipment from the telephone company line occurs.

COMPATIBILITY WITH TELEPHONE NETWORK

When necessary,

the telephone operating company provides information

on the maximum number of telephones or ringers that can be connected

to one line,

The telephone operating company can temporarily discontinue service

as well as any other applicable technical information.

and make changes which could effect the operation of your equipment* They

must,

however, provide adequate notice, in writing, of any future

equipment changes that would make the system incompatible. INSTALLATION

REQUIREMENTS

Connection of the electronic key system to the telephone lines must be

through universal service order code (USOC) outlet jacks supplied

the telephone operating company. have the proper outlets,

ask the telephone company business office to

install new outlets or adapters for the present ones.

If the installation site does not

The correct

outlet jacks for this system are type RJllC or RJ12C jacks.

Introduction

;

IMI 66-031

PARTY LINES AND COIN LINES

Local telephone company regulations may not permit connections to

party lines and coin lines by anyone except the telephone operating

company. TROUBLESHOOTING

If a service problem occurs,

first try to determine if the trouble is

in the on-site system or in the telephone company equipment.

Disconnect all equipment not owned by the telephone company. corrects the problem,

the

telephone line until the problem has been corrected. Any trouble

the faulty equipment must not be

reconnected to

If this

that causes improper operation of the telephone network may require

the telephone company to discontinue service to the trouble site after they notify the user of the reason.

REPAIR AUTHORIZATION

FCC

regulations do not permit repair of customer owned equipment anyone except the manufacturer or their authorized agent and by ot ers who might be authorized by the FCC.

. .

However,

routine repairs can be

made according to the maintenance instructions in this publication, provided that all FCC restrictions are obeyed.

RADIO FREQUENCY INTERFERENCE

The generating circuitry and,

cause

electronic key system contains incidental radio frequency

if not installed and used properly,

interference to radio and television reception.

may

This equipment

--I

has.been tested and found to comply with the limits for a Class A

computing device pursuant to Subpart J of Part 15 of FCC Rules. These

limits are designed to provide reasonable protection against such interference when operated in a commercial environment.

Operation of this equipment in a residential area may cause

..,

interference to radio and television reception; in which case the user

is encouraged to take whatever measures may be required to correct the

interference.

. .

If this equipment does cause interference to radio or television

reception,

the user is encouraged to try to correct the interference by one

on,

or both of the following measures: receiving antenna. Relocate the KSU,

stations,

which can be determined by turning the equipment off and-

Reorient the television or radio

the individual telephone

and the radio or TV with respect to each other.

. .

Introduction

If necessary, experienced radio/television technician for additional Suggestions. The user may find the following booklet prepared by the Federal Communications Commission helpful: Radio-TV Interference Problems." Government Printing Office, Washington D.C.

004-000-00345-4.

RINGER EQUIVALENCE NUMBER

the user should consult the manufacturer or an

"HOW to Identify and Resolve

This booklet is available from the

20402.

Stock No.

IMI 66-031

The REN of each line of the KSU is 0.3s.

installer to determine the total REN for each line, and record it at the equipment.

The FCC requires the

17-18

Installation

IMI 66-031

.,f

CHAPTER 2

INSTALLATION

MOUNTING CONSIDERATIONS

The KSU cabinet should be attached vertically to any sturdy, flat,

surface. It may be vertically rack mounted if desired.

It must be

located within 6 feet of a properly grounded, three-wire, 117VAC,

electrical outlet.

jacks must be 25 feet or less as per FCC requirements.

The distance between the KSU and the TELCO/PBX

A nominal

distance of 7 feet is recommended.

Choose a secure, dry mounting location with adequate ventilation. The temperature range of the location must be within 32-120 degrees F (O-49 degrees C). concrete or masonry material,

mounting surface to be used for KSU mounting.

If the mounting surface is damp or if it is

a backboard must be attached to the

Suitable mounting backboards are available commercially or can be constructed out of l/2-inch plywood cut to size.

Tools and hardware required for mounting the

KSU

cabinet include:

l/4 x l-inch round head wood screws, toggle bolts, or wall anchors

and fasteners; a screwdriver;

an electric drill if prepared holes

are required; and a connecting tool for fastening wires to a type-66

connector block.

A full scale mounting template

is supplied in the

KSU

packing box. Hold'or tape this template to the mounting surface, and mark the location of the mounting holes on the mounting surface as they are

The

KSU

located on the template.

mounting dimensions are as shown

on Figure 1.

Drill holes in the mounting surface of a proper size to

accommodate the hardware being used.

holes with inserts,

anchors or other attachment devices as

If necessary, prepare these

dictated by the type of mounting surface.

Attach the KSU to the mounting surface with four (4) screws

installed through the

surface holes.

Note that the flange holes are elongated with an

enlargement at one end of the hole.

KSU

mounting flange and into the mounting

This feature allows the mounting screws to be partially installed in the mounting surface before the

KSU

is hung on them.

Installation

IMI 66-031 ;

19.25 INCHES

hNElEr----i

Figure 1.

W&&Wi%&&&Qtina

Place the individual telephone stations as accepted industry and office standards.

A station can

bracket (part number 701032-056) for this purpose.

CABLE ROUTING

Cable may be routed concealed or visible as the installation location

requires.

applicable building codes must be adhered to.

The maximum distance allowed from the KSU to the station is 1500 feet using t24 gauge, twisted-pair cable.

The allowed tip/ring loop resistance is 1900 ohms from the jack to the TELCO/PABX equipment.

be wall mounted if necessary.

Good engineering practices must be observed and all

KSU Mounting

-a-

Dimensions

desired and in keeping with

Use a wall mounting

’ L

Installation

IMI

66-031

CONNECTIONS

Connection between the KSU and the TELCO or PABX line is via four-wire cable and modular plug/jack connection.

The maximum length of a line

cable is determined by the limitations detailed above.

A-Lead Control

The KSU inputs of TELCO lines 7 and 8 are configured to detect an

A-lead (A and Al) control signal when it is applied at the modular

line jack of the KSU. on line 7 or

it causes a busy line light indication to be shown at

all of the key system stations connected to it.

When the KSU detects an A-lead control signal

The A-lead loop

resistance must not exceed 1500 ohms.

A typical use of A-lead control signal detection would find a single-line,

non-key system, telephone set, modem, data terminal, etc.

configured for A-lead control and connected to the TELCO line at

terminal clips provided on the station connector block connected to

of the KSU.

A connected device parallels the tip and ring leads of

the TELCO line and supplies the A and Al control signals to the KSU.

(

&&z&&Q $&W&&z@

Connections between the KSU and the stations are typically via two

66M-xx station distribution connector blocks per the discussion steps

given below.

Refer to Figures 2 through 5 for connection details.

Various tvnes of station distribution connector blocks are available

and

may be-used in lieu of the type 66M-xx connector if desired.

NOTE

The system provides one tip and ring pair connected to line

1 as an emergency, power failure circuit. failure pair is located as detailed on Figures 4 and 5.

This power

The

power failure pair is only active during a power failure. An industry standard,

single-line telephone, such as a type

2500, can be connected to this pair and used to provide communications capability should the AC power to the system be interrupted.

Connect a cable between the KSU connector and the connector on the

66~-xx

Connect four-wire,

directly to the station or from the 66M-xx block to modular

connecting block.

twisted-pair cables from-the 66M-XX block

RJ14

configuration station jacks.

Installation

IMI 66-031

The polarity between the individual wires in a particular voice or data pair is not critical; however, do not connect

the voice circuits to the data circuits: To do SOI will

make a station inoperative as well as the adjacent odd or

even station.

After making the wiring connections discussed above and

illustrated in Figures 2 through 5, double check all connections

and cable routing to insure accuracy.

When a serial data printer is used for SMDR and COS printout, connect

it to clips 41,

42 43, and 44 of station connector block Jl.

Transmitted data, signal ground, request-to-send, and clear-to-send terminations are supplied at the connection block by the KSU.

levels meet RS-232 specifications.

is as illustrated in Figure 5.

printer and the KSU

must

not exceed 50 feet. When preparing a cable

A typical connection configuration

The

maximum distance between the

Signal

for connection to the printer interface connector, refer to the manufacturer's manual applicable to the printer being interfaced, and make the following wiring connections:

Wire the TD line (data to printer from KSU - clip 41) to the printer

receive data input pin. -

Wire the SG line (signal ground - clip 42) to

the printer signal

ground pin.'

Wire the RTS line (status signal from the KSU

to the printer - clip

43) to the printer data-set-ready input pin.

Wire the CTS line (status from printer to KSU

- clip 44) to the

printer request-to-send output pin.

Configure the printer

7-bit data, 2 stop bits,

serial data at 110 or 300 baud.

match the system baud rate set by COS programming.

, per the manufacturer's instructions, to receive

and no parity.

Set the baud rate for the

The printer baud rate setting must

The system

defaults to a baud rate of 110.

-.,

_-__

__-. __-_-~___

Installation

To apply AC power to the KSU, connect the AC grounded,

three-wire, 117VAC electrical outlet. A

power

cord to a properly

plug-in, power line

IMI 66-031

’

surge protector should be installed between the KSU power cord and the AC outlet.

Do not connect the AC power cord until the installation has been checked per the instructions given later .in this chapter.

It is recommended that a grounding wire,

AC line cord, be used.

Some local codes may require this use- A

separate from the three wire

ground stud is located at the lower right corner of the KSU for this purpose. Wire a 810 or #12, insulated,

solid copper wire between this ground stud and a reliable earth ground such as a metal cold water pipe or a building frame ground.

mo sets of relay closure contact points, are available at the Jl

station connector block. One set (clips 45 and 46) provides a relay

contact closure whenever any of the TELCO lines, connected to the KSU, ring. The other set (clips 47 and 48) provides a relay contact

closure whenever station 17 rings.

These contact closures track the ringing pattern in both cases. The contacts are closed during the ring on period and are open during the silent period.

A typical connection to these terminals is illustrated in Figure 2. Refer to the paragraph headed -3 ~~JJJJJ &.J+Q&~~ for a discussion

for using these terminals in this alternate paging function.

Do not exceed a 0.4 amps at 24 volts load on these control terminals. connect the load through an external relay.

If the load requirements exceed this limit,

DO NOT CONNECT

THESE CONTROL TERMINALS DIRECTLY TO THE 117VAC LINE.

.+'

'!F

Installation

IMI 66-031

;

can be programmed to be a PA station port

%?Etews

details). connected to the audio pair of the station port as illustrated in

Figure 3. audio matching transformer. amplifier with a 620 ohm (nominal value) resistor.

@-=JQa;M&~~~a~*

Points are automatica y recon lgure as PA enable terminals. The

relay is dialed.

previously,

&$ &&&J a & m e a a u~ga

Interface (station 17 audible) contact points are automatically reconfigured as PA enable terminals.

these terminals occurs when PA station 25 is dialed. auxiliary station interface,

long as station 25 is a PA station.

A line port can be configured by class-of service programming to be -an AUXILIARY port. As an AUXILIARY port, statlon voice path to an external device. allowed station

AUXILIARY port. auxiliary port as needed.

e!+w

e ephone station port (see Chapter 4 for programming

When this is done,

The connection must be isolated with a 600 ohm to 600 ohm

contact

The normal common audible function, as discussed

is disabled as long as station 23 is a PA station.

IaLii

the audio input of a PA amplifier can be

Terminate the audio input of the PA

the Common Audible contact

closure on these terminals occurs

the

The relay contact closure on

discussed previously, is disabled-as

it can be used to couple a.

This is done from any

pressing the proper line select key to select the

DTMF tones or dial pulses can be sent through the

when PA station 23

Auxiliary Station

The normal

:;-

If direct access area paging is to be part of the system, connect the' audio input of a paging amplifier to the KSU line jack programmed to be an AUXILIARY port.

a proximately R 600 ohms. o m to 600 ohm audio matching transformer.

of the paging amplifier with a 620 ohm (nominal value) resistor. A tone select, zone-paging amplifier can be employed if desired. If used,

line select key is pressed.

If music on hold is to be part of the system, music source to the KSU input jack (phono jack) provided for this purpose.

Level adjustment of the music source may done during system checkout.

the zone-select code must be dialed after the AUXILIARY port

The impedance of this input is approximately 500 ohms.

The input impedance of this port is

The connection must be isolated with a 600

Terminate the audio input

connect a KX registered

necessary.

This may be

Installation

IMI 66-031

An optional station is available which is equipped with a 14 station

Busy Lamp Field (BLF). the system.

A BLF station can be connected to any odd or even station

to eight BLF stations can be connected to

port in the system per the following guidelines.

The installed distance between the KSU and the BLF station must be limited to 1000 feet or less.

OThe data-line paired station port cannot be used as a BLF station

connection or as a regular station connection.

is: 10-11,

The overload paired station port cannot be used as a BLF station

12-13, 14-15, 16-17,

18-19, 19-21,

Data-line pairing

22-24, and 23-25.

connection but can be used as a regular station connection. Overload pairing is:

10-12, 11-13, 14-16, 15-17, 18-20, 19-21,

22-24, and 23-25.

A port, paired in either manner with a BLF station, can be used as a PA port if desired.

The optional DSS/BLF console may be installed at any station port to work in conjunction with a companion system station connected to the adjacent port (e.g.;

port 10 for station and port 11 for console). The installed distance limit between the KSU and the console is the same as that specified for the companion station.

Connect all four

wires (voice pair and data pair) of the console cable to the station

connection block.

The voice pair connections of the console can be used simultaneously

to enable a PA port function.

Refer to the paragraph in this chapter

headed Q&Q &SW m& J&&MS w&* and to the illustration shown

in Figure 5. Per that discussion,

wire a PA amplifier input to the DSS/BLF console voice-pair at the station connector block clip terminals.

referenced paragraph and illustration, to provide isolation.

Use an audio matching transformer, as discussed in the

If an enable signal is required with the particular PA equipment being used, the console and PA equipment connections are limited to the station

ports specified in the above mentioned reference.

The DSS/BLF console port must be programmed as a DSS/BLF port (see

Chapter 4 for programming details) before console operation can take place.

The console port must be also programmed as a PA port if a PA

amplifier has been.connected to the voice pair as part of the system.

Installation

IMI 66-031

l----1

CONTACT CLOSURE

Figure 2.

600-h TO 6OOA (1:l)

TO KSU STATION

PORT 23 OR 25 IF ENABLE IS REQUIRED OR TO ANY UNUSED STATION PORT IF ENABLE IS NOT REQUIRED.

CLIP TERM

24V@ 0.4A MAX

External Signalling

AUDIO

TRANSFOF

111 r

: . .

VOLTAGE CLAMPING DIODE RECOMMENDED

--Typical Connection

PA SYSTEM

AUDIO INPUT

ENABLE INPUT

ON 66M-XX CONNECTOR BLOCK.

Figure 3.

KSU EXTERNAL CONTROL CONNECTION POINTS

CLIPS 45 & 46 FOR STATION PORT 23 PA ENABLE

CLIPS 47 8148 FOR STATION PORT 25 PA ENABLE

PA Connections

_..__..___

Installation

IMI 66-031

Figure 4. System Interconnection-Typical Connections

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Comdial 616 User Guide

Table Of Contents

MANUAL SCOPE

GENERAL DESCRIPTION

CABLE ROUTING

CONNECTIONS