AT&T MERLIN LEGEND Release 2.0 Analog Multiline... User manual

555-610-131
Issue 1
August 1991
MERLIN LEGEND 
Communications System
Release 2.0
Data User’s Guide

Copyright
All Rights
Printed in
Notice
© 1992 AT&T AT&T 555-620-129
Reserved
Issue 1
U.S.A. October 1992
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 Present Appareil Numerique n’emet pas de bruits radioelectrlques
depassant Ies Iimites applicable aux appareils numeriques de la class A
prescribes clans Ie Reglement sur Ie brouillage radioelectrlque edicte par
Ie ministere des Communications du Canada.
Trademarks
MERLIN LEGEND is a trademark of AT&T in the U.S. and other countries.
ACCUNET is a registered trademark of AT&T.
Hayes is a registered trademark of Hayes Microcomputer Products, Inc.

Contents
About This Guide 1
■ Conventions 2
■ How to Comment on This Guide
3
1
About Data Communication
Equipment
Terminology
Data Stations
Modem Pools
Data Hunt Groups
Communications Software Setup
Synchronous Mode vs. Asynchronous
Mode
1-1
1-2
1-4
1-12
1-15
1-17
1-19
2
Feature Finder
2-1
Table of Contents i

Contents
3
Making and Answering Data
Calls
3-1
■ Making Analog Data Calls
3-3
■ Making Digital Data Calls
3-14
■ Making Data Calls Through a Modem Pool
3-22
4 Features
4-1
■ Account Code Entry
4-3
■ Auto Answer All
4-5
■ Data Status 4-7
■ Personal Speed Dial 4-9
■ Privacy
4-11
■ System Speed Dial 4-13
A
ii
Call Progress Messages
Table of Contents
A-1

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
Always follow these basic safety precautions when using your
telephone equipment. These precautions reduce the risk of
fire, electrical shock, and injury to you and damage to the
equipment.
Read and understand all instructions.
Follow all warnings and instructions marked on or
packed with the telephone.
Do not use the telephone near water, as in a wet
basement. The telephone can be hazardous if
immersed in water. To avoid the possibility of
electrical shock, do not use it when you are wet. If you
accidentally drop it into water, do not retrieve it until
you have first unplugged the line cord from the
modular wall jack. Do not plug the telephone back in
until it has dried thoroughly.
iii

Do not use the telephone during electrical storms in
your immediate area. There is a remote risk of
electrical shock from lightning.
Unplug the telephone from the wall outlet before
cleaning. Use a damp cloth for cleaning. Do not use
liquid or aerosol cleaners on the telephone.
Never push objects of any kind into the telephone
through openings or slots. Never spill liquid of any
kind on the telephone.
Do not use the telephone near a gas leak. If you
suspect a gas leak, report it immediately, but use a
telephone away from the area in question. The
telephone’s electrical contacts could generate a tiny
spark. While unlikely, it is possible that the spark could
ignite heavy concentrations of gas.
To reduce the risk of electrical shock, do not
disassemble the telephone. There are no user-
serviceable parts inside. Opening or removing covers
may expose you to hazardous voltages, and incorrect
reassembly can cause electrical shock when the
telephone is used.
Call your sales representative or authorized dealer
when service or repair work is needed.
Auxiliary equipment includes answering machines,
alerts, modems, and fax machines. To connect one of
these devices, you must first have a Multi-Function
Module (MFM).
iv

WARNING:
For your personal safety, DO NOT install an
MFM yourself.
ONLY an authorized technician or dealer
representative shall install, set options, or
repair an MFM.
To eliminate the risk of personal injury due to
electrical shock, DO NOT attempt to install or
remove an MFM from your MLX telephone.
Opening or removing the module cover of
your telephone may expose you to dangerous
voltages.
SAVE THESE INSTRUCTIONS
v

About This Guide
This book describes the data stations supported by the
system and how to make and receive data calls on these
stations when using the MERLIN LEGEND™ Communications
System. This guide does not provide instructions for setting
up your data station or loading and running your
communications software. Refer to the appropriate
documentation with your communications software and
equipment for these instructions.
About This Guide 1

About This Guide
Conventions
2
The following typographical conventions are used in this
book:
Bold type is used for telephone buttons.
Press SA Ring to select an SA button.
The Carriage Return key
However, your keyboard
[RETURN ] .
may show
is represented by [↵↵ ] .
[ENTER ] or
Italic type is used for emphasis and as a substitute for
information for which you must supply a specific value.
Dial dial-out code.
Constant width type is used for information on
telephone display screens or on a PC screen.
Connected
Call Status: Idle
Bold constant width type indicates information
that you enter exactly as shown.
Type #; dial #82.
Conventions

About This Guide
How to Comment on This
Guide
We welcome your feedback on this book. Please use the
feedback form on the next page. If the form is missing, send
your comments to A. Sherwood, AT&T, 99 Jefferson Road,
Rm. # 2A25, Parsippany, NJ 07054.
How to Comment on This Guide 3