Preface: About This Guide; Typographical Conventions I; Organization Of This Guide I - AT&T 7400B Plus User Manual

DEFINITY Communications System
7400B Plus Data Module
User´s Guide

PREFACE: ABOUT THIS GUIDE

TYPOGRAPHICAL
CONVENTIONS
ORGANIZATION OF THIS
GUIDE
The purpose of this guide is to provide information for installing,
operating, and maintaining the 7400B Plus Data Module.
Note: The 7400B Plus Data Module will be referred to as the
"7400B Plus" throughout this guide.
Throughout this guide, command lines that you type are shown in
typewriter-style characters, and responses that the 7400B Plus
returns are shown in italics. The following is an example.
at h ( )
Enter
OK
Note the following characteristics of the display representation:
The first line is a command line as it should be typed. The
( ) symbol, when shown, indicates that you must press
Enter
the Enter or Return key to complete the command line.
Spaces are used to separate commands in some examples
shown in this guide. In actual use, the spaces may be typed,
but they are not required.
The second line in the example shows a typical response
returned by the 7400B Plus.
The following paragraphs summarize the chapters and
appendices contained in this guide.
Chapter 1: Introduction. Discusses the basic operating
features of the 7400B Plus and describes the external
indicators and connectors.
Chapter 2: Installation. Describes the hardware and software
required for installing the 7400B Plus, and outlines
procedures for preparing the 7400B Plus for operation.
Chapter 3: Configuration and Operation. Describes how to
issue commands to your 7400B Plus. In addition, it describes
how to change, store, and recall configuration parameters,
and outlines how to create and save custom configuration
profiles. It also provides some basics on 7400B Plus
operation, outlines a typical on-line data session, and
discusses more advanced command usage with example
command lines. If you are not familiar with the ''AT''
command interface and you are not using your 7400B Plus
with a PC communications package, you will need to
familiarize yourself with this chapter.
PREFACE: ABOUT THIS GUIDE
Page iii