AT&T Release 2.0 User Manual

AT&T

MERLIN LEGEND™

Communications System

AT&T 555-620-141
Issue 1
October 1992

Release

2.0

Installation Section

Copyright © 1992 AT&T
All Rights Reserved
Printed in U.S.A.

AT&T 555-620-141

Issue 1

October 1992

Notice

Every effort was made to ensure that the information in this book was complete and
accurate at the time of printing. However, information is subject to change.

Federal Communications Commission (FCC)
Electromagnetic Interference Information

This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the
user will be required to correct the interference at his own expense.

Canadian Department of Communications (DOC)

Interference Information

This digital apparatus does not exceed the Class A limits for radio noise emissions set
out in the radio interference regulations of the Canadian Department of Communications.

Le Présent Appareil Numérique n’émet pas de bruits radioélectriques dépassant les
limites applicable aux appareils numériques de la class A prescrites dans le Règlement
sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.

Trademarks

CONVERSANT, Magic On Hold, and MERLIN are registered trademarks, and AUDIX
Voice Power, InnManager, MERLIN Attendant, MERLIN LEGEND, MERLIN MAIL, MERLIN
PFC, MLX-10, MLX-10D, MLX-20L, and MLX-28D are trademarks of AT&T in the U.S. and
other countries.
MS-DOS is a registered trademark of Microsoft Corp.

Mirage, StarSet, Supra, and Supra NC are registered trademarks of Plantronics, Inc.

Support Telephone Number

AT&T provides a toll-free customer Helpline (1-800-628-2888) 24 hours a day
(U.S.A. only). Call the Helpline, or your authorized dealer, if you need assistance when
installing, programming, or using the system.

Contents

2

1

About This Book

Intended Audience

■

Conventions

■

Product Safety Labels

■

■

Related Documents

■

How to Comment on This Document

Introduction to Installation

■ Overview of the Installation Process

■ System Forms

■ Upgrading the Communications System

Installing the Control Unit

Overview

■

Preparation

■

Power and Grounding

■

■

Unit Loads

■

Installing the Basic Carrier

■

Upgrading the Control Unit

■

Installing Expansion Carriers

■

Installing the Power Supply

■

Installing the Processor

■

Installing the Modules

■

Connecting the Control Unit to an AC Outlet

1
1
1

2
3
5

1-1
1-2
1-3
1-6

2-1
2-1

2-2
2-6
2-18
2-20
2-22
2-26

2-28
2-39
2-53

2-62

Contents i

Contents

4

3

■ Powering Up the System

■ Powering Down the System

Installing Telephones and Adjuncts

■ Installing the Multi-Function Module

■ Installing Adjuncts

■ Installing the Direct Station Selector

■ Assembling the MLX Telephone

■ Connecting the Telephones to the Control Unit

Connecting the Control Unit to the

Network Interface

■ Wiring

■ Testing Trunks

■ Labeling Trunks

■ Installing the Channel Service Unit

2-63
2-64

3-1
3-2
3-12

3-31
3-36
3-43

4-1
4-2
4-14
4-16

4-17

5

ii

Installing the PC, CAT, or Printer

■ Connecting a PC to the Control Unit

■ Connecting a CAT to the Control Unit

■ Connecting a Printer to the Control Unit

Contents

5-1
5-1
5-7
5-8

Contents

8

7

6

Connecting Data Equipment

■ Data Stations

■ Modem Pools

Initializing and Testing the System

■ Initializing the System

■ Setting the Time and Date

■ Testing the System

■ Installing the Control Unit Housing

Installing Applications

Voice Messaging Systems and TTRs

■

■

Automated Document Delivery System

■

Call Accounting System

■

Call Accounting Terminal

■

Call Management System

CONVERSANT Intro

■

■

InnManager Guest Management System

■

Integrated Solution III
MERLIN Attendant

■

MERLIN MAIL Voice Messaging System

■

■

MERLIN PFC

System Programming and Maintenance (SPM)

■

6-1
6-2

6-23

7-1
7-1

7-9
7-10
7-32

8-1

8-2
8-4
8-5
8-8
8-11
8-14
8-16
8-18

8-21
8-23
8-27
8-29

Contents iii

Contents

A

B

System Numbering Forms

■ Form 2a, System Numbering—Station Jacks

■ Form 2b, System Numbering—Digital Adjuncts

■ Form 2c, System Numbering—Trunk Jacks

■ Form 2d, System Numbering—Special Renumbers

Unit Load Calculation Worksheet

■ Unit Load Worksheet

C Ordering Codes

■ Ordering Codes

A-1
A-2
A-4
A-5
A-6

B-1
B-2

C-1
C-1

iv

Contents

Figures

2

Installing the Control Unit

Figure 2-1.
Figure 2-2.

Figure 2-3. Central Office and AC Grounds
Figure 2-4.
Figure 2-5.
Figure 2-6.
Figure 2-7. Removing the Control Unit Housing
Figure 2-8. Connecting the Carriers

Figure 2-9.

Figure 2-10. Replacing a Ring Generator
Figure 2-11. Installing a Copper Shield in the Power Supply
Figure 2-12. Modifying the Processor Board for Key Mode

Figure 2-13. Installing the Feature Module in the Processor
Figure 2-14. Installing the Processor into the Carrier
Figure 2-15. Installing an Auxiliary Power Unit
Figure 2-16. Setting the 400EM Module DIP Switches for

AC Grounding Requirements
Measuring the AC Outlet Voltages

Installing 146A and 147A Protectors
Marking the Basic Carrier Screw Holes
Installing the Housing Clips on the Carrier

Installing a Ring Generator in the Power

Supply

2-7
2-10

2-12
2-17
2-20
2-21
2-23

2-26

2-31
2-34
2-37
2-42
2-44
2-47

2-49

3

E&M Signaling Types 1C and 5

Figure 2-17. Trunk and Telephone Jacks on Each Module

Installing Telephones and Adjuncts

Figure 3-1.
Figure 3-2.
Figure 3-3.
Figure 3-4. Setting the MFM Jumpers

Multi-Function Module Packing List
Remove Desk Stand and Module Cover

MFM Locking Tabs

2-54
2-58

3-3
3-5
3-7

3-8

Contents v

Figures

Figure 3-5.
Figure 3-6.

Figure 3-7.
Figure 3-8. Single-Zone Paging with PagePac 20
Figure 3-9. Single-Zone Paging with Customer-Supplied

Figure 3-10. Single-Zone Paging with Paging Access

Figure 3-11. Single-Zone Paging with Background Music

Figure 3-12. Multizone Paging with Background Music,

Figure 3-13. Installing the Supplemental Alert Adapter
Figure 3-14. Connecting One or More DSSS
Figure 3-15. Removing the Extension Label
Figure 3-16. Labeling the Extension

Removing the Jack Guard
Powering up the Telephone after Installing the
MFM
Routing the Cord(s) through the Cord Channel

Amplifier

Module

and Magic On Hold

Magic On Hold, and Talk-Back

3-9

3-11
3-14
3-21

3-22

3-23

3-25

3-26

3-28
3-33
3-38
3-38

vi

Figure 3-17. Removing the Handset Holder
Figure 3-18. Rotating the Handset Holder
Figure 3-19. Replacing the Extension Label
Figure 3-20. Routing the Cord through the Backplate
Figure 3-21. Mounting the Backplate
Figure 3-22. Hardware for Connecting up to 24 Telephones

(also included in SYSTIMAX Hardware Kit; see
also Figure 3-27)

Figure 3-23. Tools for Connecting up to 24 Telephones

Figure 3-24. Inserting the Conductors into the Connecting

Blocks

Contents

3-39
3-39

3-40

3-41

3-42

3-46

3-47

3-50

Figures

Figure 3-25. Using the D-Impact Tool to Seat the

Conductors

Figure 3-26. Routing the Wires through the Wire Troughs

and D-Rings

Figure 3-27. SYSTIMAX Hardware Kit (See also

Figure 3-22)

Figure 3-28. Attaching the SYSTIMAX Template to the Wall
Figure 3-29. Using the SYSTIMAX Template to Place the

Hardware
Figure 3-30. Drilling Holes for Each Piece of Hardware
Figure 3-31. Using the 788J1 Tool to Seat and Trim the

Conductors

Figure 3-32. Using the Reversed Blade Edge on the 788J1

Impact Tool

Figure 3-33. Connecting Termination Blocks to

Field-Terminated Blocks

Figure 3-34. Connecting Two Voice Pairs to a Telephone

Using a Bridge Adapter (BR-241-B1)

Figure 3-35. Pressing the Wires Over the Slots in the Outlet
Figure 3-36. Removing the Connecting Block

3-51

3-52

3-54
3-56

3-57
3-58

3-60

3-61

3-63

3-64
3-66
3-73

4

Connecting the Control Unit to the

Network Interface

Figure 4-1.

Figure 4-2.

Figure 4-3.

Figure 4-4. Using the D-Impact Tool to Seat the

RJ21X Network Interface Connector
RJ21X Wiring Field Hardware
RJ21X Wiring Field Tools

Conductors

4-5
4-7
4-8

4-10

Contents

vii

Figures

5

Figure 4-5. RJ11 and RJ14 Interfaces
Figure 4-6. Connecting the ESF T1 CSU (Rear Panel)
Figure 4-7.
Figure 4-8.

Figure 4-9. Connecting the T1 Lines to the CSU
Figure 4-10. Signal Monitor Unit
Figure 4-11. Inserting the Office Repeater into the

ESF T1 CSU Front Panel
551 T1 CSU

551 T1 CSU

Installing the PC, CAT, or Printer

Figure 5-1.
Figure 5-2. Connecting the PC (50 Feet or More)
Figure 5-3. Connecting the Printer (Within 50 Feet)
Figure 5-4. Connecting the Printer (50 Feet or More)
Figure 5-5. Connecting the 248B Adapter and the 2012D

Connecting the PC (Within 50 Feet)

Transformer

4-11
4-26
4-30
4-33
4-37

4-38

4-40

5-3
5-5
5-13
5-17

5-20

6

Connecting Data Equipment

Figure 6-1.
Figure 6-2.

Figure 6-3.
Figure 6-4.

Figure 6-5.

Figure 6-6. Digital Data-Only Equipment Configuration

viii Contents

Data Stations and a Modem Pool
Analog Data and Analog Voice
Equipment Configuration
Analog Data Only Equipment Configuration
Analog Data and Digital Voice
Equipment Configuration
Digital Data and Digital Voice
Equipment Configuration

6-1

6-6
6-9

6-11

6-13

6-16

Figures

7

8

A

Figure 6-7. Video Conferencing Connections
Figure 6-8. Modem Pool Configurations

6-20

6-26

Initializing and Testing the System

Figure 7-1.
Figure 7-2.

Ground-Start Button
Installing the Control Unit Housing

7-29
7-32

Installing Applications

Figure 8-1.

Connecting the CAT

8-9

System Numbering Forms

Figure A-1.
Figure A-2. Form 2b, System Numbering—Digital Adjuncts A-4
Figure A-3. Form 2c, System Numbering—Trunk Jacks
Figure A-4. Form 2d, System Numbering—Special

Form 2a, System Numbering—Station Jacks

Renumbers

A-2

A-5

A-6

Contents ix

x

Contents

Tables

4

3

2

Installing the Control Unit

Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.

Table 2-5.

Environmental Requirements
AC Power Requirements
Heavy Lightning Protection
Setting the 400EM Module DIP Switches
Sample DIP Switches for the 400EM Module

Installing Telephones and Adjuncts

Table 3-1.
Table 3-2.

Unsupported Telephones and Adjuncts
Insert Labels

Connecting the Control Unit to the

Network Interface

Table 4-1.

Table 4-2.
Table 4-3.
Table 4-4.

Table 4-5.
Table 4-6.
Table 4-7.
Table 4-8.

Table 4-9.
Table 4-10.

Network Interfaces
Central Office Network Interface Codes
SW1 Default Settings
SW2 Default Settings

SW4 Default Settings
SW5 Default Settings
SW6 Default Settings

SW7 Settings
SW2 BER Options
Switch Settings in Hybrid/PBX Mode: Network

2-3
2-8
2-16
2-55
2-55

3-30
3-68

4-3
4-4
4-19

4-19
4-20
4-20
4-21
4-21

4-22

and Equipment are ESF Framed lJsing AMI

ZCS Line Code

4-23

Contents xi

Tables

Table 4-11.

Table 4-12.

Table 4-13.
Table 4-14.
Table 4-15.

Table 4-16.
Table 4-17.
Table 4-18.

Table 4-19.

Table 4-20.

Table 4-21.

Table 4-22.

Table 4-23.

Table 4-24.

Table 4-25.

Table 4-26.

Table 4-27.

Switch Settings in Hybrid/PBX Mode: Network
and Equipment are ESF Framed Using B8ZS
Line Code
Switch Settings in Hybrid/PBX Mode: Network
and Equipment are D4 Framed
Artificial Transmit Line Options

100D Module Pin Assignments

Wire-Wrap Connector Pin Assignments

DTE 15-Pin Connector Pin Assignments
Network 15-Pin Connector Pin Assignments
CSU Front Panel LEDs
CSU Front-Panel Controls

CSU Front-Panel Test Jacks

Signal Monitor Unit Switch Settings

Office Repeater Power Mode Option Settings

Office Repeater Artificial Line Options

Signal Monitor Unit Front-Panel LEDs

Signal Monitor Unit Front-Panel Test Jacks

CSU Rear-Panel Pin Assignments

TBI Pin Assignments

.

4-23

4-24
4-25

4-27
4-28
4-29
4-29
4-31
4-32
4-32
4-35
4-36
4-36
4-39
4-39
4-41
4-42

5

xii

Installing the PC, CAT, or Printer

Table 5-1.
Table 5-2.
Table 5-3.

Contents

AT&T 572 Printer Options

AT&T 475/476 Printer DIP Switch Settings

AT&T CAT Printer DIP Switch Settings

5-21
5-23

5-24

Tables

8

7

6

Connecting Data Equipment

Table 6-1.

Table 6-2.
Table 6-3.

Table 6-4.
Table 6-5.

Data Station Configurations
Data Module Settings

7500B Option Settings for Digital-to-Analog
Modem Pool
Modem Option Settings for Modem Pools

7500B Option Settings for Analog-to-Digital
Modem Pool

Initializing and Testing the System

Table 7-1.

Table 7-2.

Compatibility of SPM Versions during Upgrade 7-4
Programming Compatibility

Installing Applications

Table 8-1.
Table 8-2.
Table 8-3.

TTRs Required by VMS
Voice Channels Required
MERLIN MAIL Ports Required

6-4

6-23

6-30
6-31

6-32

7-4

8-3

8-18

8-24

Contents xiii

xiv

Contents

CUSTOMER WARNING

This manual is designed for use

by qualified service technicians

only. Technician qualification includes completion of an AT&T

hands-on instructor-led course covering installation and
maintenance for this product. Installation or maintenance of this
product by anyone other than a qualified service technician may

void the warranty. Hazardous electrical voltages are present

inside this product.

The exclamation point in an equilateral triangle is
intended to alert the user to the presence of
important operating and maintenance (servicing)

instructions in the literature accompanying the

product.

IMPORTANT SAFETY INSTRUCTIONS

When installing telephone equipment, always follow basic safety precautions
to reduce the risk of fire, electrical shock, and injury to persons, including:

■

Read and understand all instructions.

■

Follow all warnings and instructions marked on or packed with the
product.

■

Never install telephone wiring during a lightning storm.

■

Never install a telephone jack in a wet location unless the jack is
specifically designed for wet locations.

■

Never touch uninsulated telephone wires or terminals unless the
telephone wiring has been disconnected at the network interface.

■

Use caution when installing or modifying telephone lines.

xv

■

Use only AT&T-manufactured MERLIN LEGEND™ Communications
System circuit modules, carrier assemblies, and power units in the
MERLIN LEGEND Communications System (511A) control unit.

■

Use only AT&T-recommended/approved MERLIN LEGEND
Communications System accessories.

If equipment connected to the analog station modules (008, 408,

■

408 GS/LS) or to the MLX telephone modules (008 MLX, 408 GS/LS­MLX) is to be used for in-range out-of-building (IROB) applications,

IROB protectors are required.

■

Do not install this product near water, for example, in a wet basement
location.

Do not overload wall outlets, as this can result in the risk of fire or

■

electrical shock.

The MERLIN LEGEND Communications System is equipped with a

■

three-wire grounding-type plug with a third (grounding) pin. This plug
will fit only into a grounding-type power outlet. This is a safety feature.

If you are unable to insert the plug into the outlet, contact an electrician
to replace the obsolete outlet. Do not defeat the safety purpose of the
grounding plug.

xvi

The MERLIN LEGEND Communications System requires a

■

supplementary ground.

■

Do not attach the power supply cord to building surfaces. 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.

■

Slots and openings in the module housings are provided for ventilation.
To protect this equipment from overheating, do not block these
openings.

Never push objects of any kind into this product through module

■

openings or expansion slots, as they may touch dangerous voltage
points or short out parts, which could result in a risk of fire or electrical
shock. Never spill liquid of any kind on this product.

Unplug the product from the wall outlet before cleaning. Use a damp

■

cloth for cleaning. Do not use cleaners or aerosol cleaners.

Customer Support Information

Support Telephone Number

In the U.S.A. only,

24 hours a day. Call the Helpline, or your authorized dealer, if you need assistance
when installing, programming, or using your system.

AT&T provides a toll-free customer Helpline (1-800-628-2888)

Outside the U.S.A.,

your system, contact your authorized AT&T dealer.

Federal Communications Commission (FCC)
Electromagnetic Interference Information

This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference,
in which case the user will be required to correct the interference at his own expense.

Canadian Department of Communications (DOC)
Interference Information

This digital apparatus does not exceed the Class A limits for radio noise emissions set
out in the radio interference regulations of the Canadian Department of
Communications.

Le Présent Appareil Numérique n'émet pas de bruits radioelectriques depassant les
limites applicable aux appareils numériques de la class A prescrites dans le
reglement sur le brouillage radioelectrique edicté par le ministère des Communications
du Canada.

if you need assistance when installing, programming, or using

Customer Support Information

xvii

Customer Support Information

FCC Notification and Repair Information

This equipment is registered with the FCC in accordance with Part 68 of its rules. In
compliance with those rules, you are advised of the following:

■ Means of Connection. Connection of this equipment to the telephone network

shall be through a standard network interface jack: USOC RJ11C, RJ14C,

RJ21X. Connection to E&M tie trunks requires a USOC RJ2GX. Connection to

off-premises stations requires a USOC RJ11C or RJ14C. Connection to 1.544­Mbps digital facilities must be through a USOC RJ48C or RJ48X. Connection
to DID requires a USOC RJ11C, RJ14C, or RJ21X. These USOCs must be
ordered from your telephone company.

This equipment may not be used with party lines or coin telephone lines.

■ Notification to the Telephone Companies. Before connecting this

equipment, you or your equipment supplier must notify your local telephone
company’s business office of the following:

— The telephone number(s) you will be using with this equipment.
— The appropriate registration number and ringer equivalence number

(REN), which can be found on the back or bottom of the control unit,
as follows:

If this equipment is to be used as Key System, report the number

AS593M-72914-KF-E.

If the system provides both manual and automatic selection of
incoming/outgoing access to the network, report the number

AS593M-72682-MF-E.

If there are no directly terminated trunks, or if the only directly
terminated facilities are personal lines, report the number
AS5USA-65646-PF-E.
The REN for all three systems is 1.5A.

— For tie line connection, the facility interface code (FIC) is TL31M and

the service order code (SOC) is 9.0F.

— For connection to off-premises stations, the FIC is OL13C and the SOC

is 9.0F.

— For equipment to be connected to 1.544-Mbps digital service, the FIC

is 04DU9-B for D4 framing format or 04DU9-C for extended framing
format, and the SOC is 6.0P.

— For equipment to be connected to DID facilities, the FIC is 02RV2-T

and the SOC is AS.2.
— The quantities and USOC numbers of the jacks required.
— For each jack, the sequence in which lines are to be connected: the

line types, the FIC, and the REN by position when applicable.

You must also notify your local telephone company if and when this equipment

is permanently disconnected from the line(s).

The REN is used to determine the number of devices that may be connected to
the telephone line. Excessive RENs on the line may result in the devices not

xviii

Customer Support Information

Customer Support Information

ringing in response 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 REN for the calling area.

Installation and Operational Procedures

The manuals for your system contain information about installation and operational
procedures.

Repair Instructions.

■

malfunctioning, the FCC requires that the equipment not be used and that it be
disconnected from the network until the problem has been corrected. Repairs
to this equipment can be made only by the manufacturers, their authorized
agents, or others who may be authorized by the FCC. In the event repairs are
needed on this equipment, contact your authorized AT&T dealer or,

U.S.A. only,

contact the National Service Assistance Center (NSAC) at

1-800-628-2888.

■

Rights of the Local Telephone Company.

the telephone network, the local telephone company may discontinue your
service temporarily. If possible, they will notify you in advance. But if advance
notice is not practical, you will be notified as soon as possible. You will also be
informed of your right to file a complaint with the FCC.

Your local telephone company may make changes in its facilities, equipment,

operations, or procedures that affect the proper functioning of this equipment.

If they do, you will be notified in advance to give you an opportunity to maintain

uninterrupted telephone service.

Hearing Aid Compatibility.

■

compatible with inductively coupled hearing aids as prescribed by the FCC.

Automatic Dialers.

■

MAKING TEST CALLS TO EMERGENCY NUMBERS:

— Remain on the line and briefly explain to the dispatcher the reason for

the call.

— Perform such activities in off-peak hours, such as early morning or late

evening.

Direct Inward Dialing (DID).

■

a. This equipment returns answer supervision signals to the Public

Switched Telephone Network when:
(1)
(2)
(3)

(4)

If you experience trouble because your equipment is

in the

If this equipment causes harm to

The custom telephone sets for this system are

WHEN PROGRAMMING EMERGENCY NUMBERS AND/OR

answered by the called station
answered by the attendant
routed to a recorded announcement that can be administered
by the customer premises equipment user
routed to a dial prompt

Customer Support Information

xix

Customer Support Information

b. This equipment returns answer supervision on all DID calls forwarded

back to the Public Switched Telephone Network. Permissible
exceptions are when:
(1) a call is unanswered
(2)
(3)

Allowing this equipment to be operated in such a.manner as not to provide
proper answer supervision signaling is in violation of Part 68 rules.

DOC Notification and Repair Information

NOTICE:

equipment. This certification means that the equipment meets certain
telecommunications network protective, operational, and safety requirements. The
DOC does not guarantee the equipment will operate to the user’s satisfaction.

Before installing this equipment, users should ensure that it is permissible to connect it
to the facilities of the local telecommunications company. The equipment must also be
installed using an acceptable method of connection. In some cases, the company’s
inside wiring for single-line individual service may be extended by means of a certified
connector assembly (telephone extension cord). The customer should be aware that
compliance with the above conditions may not prevent degradation of service in some
situations.

Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or alterations made by
the user to this equipment, or any equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.

The Canadian Department of Communications (DOC) label identifies certified

a busy tone is received
a reorder tone is received

Users should ensure for their own protection that the electrical ground connections of
the power utility, telephone lines, and internal metallic water pipe system, if present,
are connected. This precaution may be particularly important in rural areas.

CAUTION:

contact the appropriate electrical inspection authority or electrician, as appropriate.
To prevent overloading, the Load Number (LN) assigned to each terminal device

denotes the percentage of the total load to be connected to a telephone loop used by
the device. The termination on a loop may consist of any combination of devices
subject only to the requirement that the total of the Load Numbers of all the devices
does not exceed 100.

xx

Customer Support Information

Users should not attempt to make such connections themselves, but should

DOC Certification No.: 230 4095A
CSA Certification No.: LR 56260
Load No.: 6

Customer Support Information

Renseignements sur la notification du ministère des Communications du Canada et
la réparation

AVIS: L'étiquette du ministère des Communications du Canada identifie le matériel
homologué. Cette étiquette certifie que le matériel est conforme à certaines normes de
protection, d'exploitation et de sécurité des réseaux de télécommunications. Le
Ministère n'assure toutefois pas que le matériel fonctionnera à la satisfaction de
l'utilisateur.

Avant d'installer ce matériel, l'utilisateur doit s'assurer qu'il est permis de le raccorder
aux installations de l'entreprise locale de télécommunication. Le matériel doit
également être installe en suivant une méthode acceptée de raccordement. Dans
certains cas, les fils intérieurs de l'enterprise utilsés pour un service individuel à ligne
unique peuvent être prolongés au moyen d'un dispositif homologué de raccordement
(cordon prolongateur téléphonique interne.)

L'abonné ne doit pas oublier qu'il est possible que la conformité aux conditions
énoncées ci-dessus n'empêchent pas la dégradation du service dans certaines
situations. Actuellement, les enreprises de télécommunication ne permettent pas que
l'on raccorde leur matériel à de jacks d'abonne, sauf dans les cas précis prévus pas
les tarifs particuliers de ces entreprises.

Les réparations de matériel homologué doivent être effectuées par un centre
d'entretien canadien autorisé désigne par le fournisseur. La compagnie de
télécommunications peut demander à l'utilisateur de débrancher un appareil à la suite
de réparations ou de modifications effectuées par l'utilisateur ou à cause de mauvais
fonctionnnement.

Pour sa propre protection, l'utilisateur doit s'assurer que tous les fils de mise à la terre
de la source d'energie électrique, des lignes téléphoniques et des canalisations d'eau
métalliques, s'il y en a, sont raccordés ensemble. Cette précaution est
particulièrement importante dans les régions rurales.

AVERTISSEMENT:

même; il doit avoir recors à un service d'inspection des installations électriques, ou à
un electricien, selon le cas.

L'indice de charge (IC) assigné à chaque dispositif terminal indique, pour éviter toute
surcharge, le pourcentage de la charge totale qui peut être raccordée à un circuit
téléphonique bouclé utilisé par ce dispositif. La terminaison du circuit bouclé peut être
constituée de n'importe quelle combinaison de dispositifs, pourvu que la somme des
indices de charge de l'ensemble des dispositifs ne dépasse pas 100.

No d’homologation: 230 4095A
Node certification: CSA LR 56260
L’indice de charge: 6

L'utilisateur ne doit pas tenter de faire ces raccordements lui-

Customer Support Information xxi

Customer Support Information

MERLIN LEGEND D.O.C.
Location Label Placement

Ministère des Communications

du Canada emplacement de

l'étiquette

xxii

Customer Support Information

Customer Support Information

Security of Your System—Preventing Toll Fraud

As a customer of a new telephone system, you should be aware that there exists an
increasing problem of telephone toll fraud. Telephone toll fraud can occur in many
forms, despite the numerous efforts of telephone companies and telephone equipment

manufacturers to control it. Some individuals use electronic devices to prevent or
falsify records of these calls. Others charge calls to someone else’s number by
illegally using lost or stolen calling cards, billing innocent parties, clipping on to
someone else’s line, and breaking into someone else’s telephone equipment physically
or electronically. in certain instances, unauthorized individuals make connections to
the telephone network through the use of remote access features.

The Remote Access feature of your system, if you choose to use it, permits off­premises callers to access the system from a remote telephone by using an 800
number or a 7- or 10-digit telephone number. The system returns an
acknowledgement signaling the user to key in his or her authorization code, which is
selected and administered by the system manager. After the authorization code is
accepted, the system returns dial tone to the user. If you do not program specific
egress restrictions, the user will be able to place any call normally dialed from a
telephone associated with the system. Such an off-premises network call is originated
at, and will be billed from the system location.

The Remote Access feature, as designed, helps the customer, through proper
administration, to minimize the ability of unauthorized persons to gain access to the
network. Most commonly, phone numbers and codes are compromised when
overheard in a public location, through theft of a wallet or purse containing access
information, or through carelessness (writing codes on a piece of paper and improperly
discarding it). Additionally, hackers may use a computer to dial an access code and
then publish the information to other hackers. Enormous charges can be run up
quickly. It is the customer’s responsibility to take the appropriate steps to properly
implement the features, evaluate and administer the various restriction levels, protect
access codes, and distribute access codes only to individuals who have been fully
advised of the sensitive nature of the access information.

Common carriers are required by law to collect their tariffed charges. While these
charges are fraudulent charges made by persons with criminal intent, applicable tariffs
state that the customer of record is responsible for payment of all long-distance or
other network charges. AT&T cannot be responsible for such charges and will not
make any allowance or give any credit for charges that result from unauthorized
access.

Customer Support Information xxiii

Customer Support Information

To minimize the risk of unauthorized access to your communications system:

■

Use a nonpublished Remote Access number.

Assign authorization codes randomly to users on a need-to-have basis,

■

keeping a log of ALL authorized users and assigning one code to one person.
Use random sequence authorization codes, which are less likely to be easily

■

broken.

■

Deactivate all unassigned codes promptly.

Ensure that Remote Access users are aware of their responsibility to keep the

■

telephone number and any authorization codes secure.
When possible, restrict the off-network capability of off-premises callers, via

■

use of Call Restrictions and Disallowed List capabilities.

When possible, block out-of-hours calling.

■

Frequently monitor system call detail reports for quicker detection of any

■

unauthorized or abnormal calling patterns.

■

Limit Remote Call Forward to persons on a need-to-have basis.

Limited Warranty and Limitation of Liability

AT&T warrants to you, the customer, that your MERLIN LEGEND Communications
System will be in good working order on the date AT&T or its authorized reseller
delivers or installs the system, whichever is later (“Warranty Date”). If you notify AT&T
or its authorized reseller within one year of the Warranty Date that your system is not in
good working order, AT&T will without charge to you repair or replace, at its option, the
system components that are not in good working order. Repair or replacement parts
may be new or refurbished and will be provided on an exchange basis. If AT&T
determines that your system cannot be repaired or replaced, AT&T will remove the
system and, at your option, refund the purchase price of your system, or apply the

purchase price towards the purchase of another AT&T system.

Voice Mail Systems

Your Voice Mail system permits callers to leave verbal messages for system users or
gain access to the back-up position in an emergency as well as create and distribute
voice messages among system users.

The Voice Mail system, through proper administration, can help you reduce the risk of

unauthorized persons gaining access to the network. However, phone numbers and
authorization codes can be compromised when overheard in a public location, are lost

through theft of a wallet or purse containing access information, or through

carelessness (writing codes on a piece of paper and improperly discarding them).

Additionally, hackers may use a computer to dial an access code and then publish the

information to other hackers. Substantial charges can accumulate quickly. It is your

xxiv

Customer Support Information

Customer Support Information

responsibility to take appropriate steps to implement the features properly, evaluate

and administer the various restriction levels, protect and carefully distribute access
codes.

Under applicable tariffs, you will be responsible for payment of toll charges. AT&T
cannot be responsible for such charges and will not make any allowance or give any
credit resulting from unauthorized access.

To reduce the risk of unauthorized access through your Voice Mail system, please
observe the following procedures:

■

Employees who have voice mailboxes should be required to use the
passwords to protect their mailboxes.

— Have them use random sequence passwords.
— Impress upon them the importance of keeping their passwords a

secret.

— Encourage them to change their passwords regularly.

The administrator should remove any unneeded voice mailboxes from the

■

system immediately.
AUDIX Voice Power™ has the ability to limit transfers to subscribers only. You

■

are strongly urged to limit transfers in this manner.
Use the PBX or Key system administration capability to do the following:

■

— Block direct access to outgoing lines and force the use of account

codes/authorization codes.

— Disallow trunk-to-trunk transfer unless required.
— Assign toll restriction levels to all AUDIX Voice Power ports.
— If you do not need to use the Outcalling feature, completely restrict the

outward calling capability of the AUDIX Voice Power ports.

Monitor SMDR reports or Call Accounting System reports for outgoing calls that

■

might be originated by AUDIX Voice Power ports.

.

Remote Administration and Maintenance

The Remote Administration and Maintenance feature of your telecommunications

system, if you choose to use it, permits users to change the system features and
capabilities from a remote location.

The Remote Administration and Maintenance feature, through proper administration,

can help you reduce the risk of unauthorized persons gaining access to the network.
However, telephone numbers and authorization codes can be compromised when
overheard in a public location, are lost through theft of a wallet or purse containing
access information, or through carelessness (writing codes on a piece of paper and
improperly discarding them). Additionally, hackers may use a computer to dial an
access code and then publish the information to other hackers. Substantial charges

Customer Support Information xxv

Customer Support Information

can accumulate quickly. It is your responsibility to take appropriate steps to implement
the features properly, evaluate and administer the various restriction levels, and protect
and carefully distribute access codes.

Under applicable tariffs, you will be responsible for payment of toll charges. AT&T
cannot be responsible for such charges and will not make any allowance or give any
credit resulting from unauthorized access.

To reduce the risk of unauthorized access through Remote Administration and
Maintenance, please observe the following procedures:

■

The System Administration and Maintenance capability of a PBX or Key system

is protected by a password.

— Change the default password immediately.
— Continue to change the password regularly.

— Only give the password to people who need it and impress upon them

the need to keep it secret.

— If anyone who knows the password leaves the company, change the

password immediately.

■

If you have a special telephone line connected to your PBX or Key system for

Remote Administration and Maintenance, you should do one of the following:

— Unplug the line when it is not being used.
— Install a switch in the line to turn it off when it is not being used.
— Keep the Remote Administration and Maintenance telephone number

secret. Only give it to people who need to know it, and impress upon
them the need to keep it a secret. Do not write the telephone number

on the PBX or Key system, the connecting equipment, or anywhere
else in the system room.

■

If your Remote Administration and Maintenance feature requires that someone

in your office transfer the caller to the Remote Administration and Maintenance
extension, you should impress upon your employees the importance of only
transferring authorized individuals to that extension.

xxvi

Customer Support Information

About This Book

The Installation guide contains information on installing and upgrading the
MERLIN LEGEND

TM

Communications System.

Intended Audience

This book is intended for qualified technicians who install and upgrade the
system.

Conventions

The following typographical conventions are used in this book:

■ Bold type is used for telephone buttons.

Press

■ Italic type is used for emphasis and as a substitute for information for

which you must supply a specific value.

Drop

to delete the current entry.

Dial feature code; dial ✱ ext. no.

Conventions 1

About This Book

■

Constant width type is used for information on telephone display

screens or on a PC screen.

Select

■ Bold constant width type indicates

Sys Program.

nformation that you enter

exactly as shown.

Type

install;

■ Keys on the PC are shown in boxes.

Press

■ When two keys are to be pressed at the same time, the keys are

[F7]

.

dial

#55.

connected by a hyphen.

Press

[Alt]

-

[P]

.

Product Safety Labels

Throughout these documents, hazardous situations are indicated by an
exclamation point inside a triangle and the-word “caution” or “warning.”

WARNING:

Warning indicates the presence of a hazard that could cause death
or severe personal injury if the hazard is not avoided.

CAUTION:

Caution indicates the presence of a hazard that could cause minor

personal injury or property damage if the hazard is not avoided.

2

Product Safety Labels