Avaya 8400B Plus D-2 , Performing a Data Loopback Test

Isolating Problems Using Loopback Data Tests

D-2 Issue 2 November 1996

Figure D-1. Data Loopback Test

Performing a Data Loopback Test

To initiate the test, set up a data call and escape to command mode (+++). Then

type:

AT&T3

The system responds with:

The remote endpoint user types characters (which will not appear on your

screen) and will call you on another line to inform you of the test resu lts. This

test will continue for the period of time indicated in S-register S18.

If the remote endpoint user tells you to terminate the test before the period of

time indicated in S-register S18, type:

AT&T0

Local DTE Data Received

8400B Plus Remote

Data Endpoint Remote DTE

Transmitter

TransmitterReceiver

Receiver

Data Sent

ENTER

Contents

Main Copyright 1996, Avaya Inc. All Rights Reserved Printed in USA Notice Your Responsibility for Your Systems Secu- rity Avaya Fraud Intervention Warranty CE Compliant 1 2 iv 3 4 Page Page About This Document Purpose Organization of This Guide viii How to Order Documentation How to Comment on This Document x Conventions Used ! Security Issues xii NETCON Data Channels PBX Security Measures xiv Lucent Technologies Fraud Intervention Related Documentation xvi Important Safety Instructions !SAVE THESE INSTRUCTIONS xviii Introduction Overview 1-2 Features Physical Description Page Page 1-6 Page Page Installation About the Terminal Device Page Selecting the Correct Installation Procedure Issue 2 November 1996 2-3 Figure 2-1. Components of the US Configuration and the International Configuration CONFIGURATIONS 2-4 What You Need Selecting the Correct Installation Procedure Issue 2 November 1996 2-5 8400B Plus Data Module Installation 2-6 8400B Plus Data Module Selecting an EIA Connector Cord Hardware Installation Connecting the 8400B Plus Data Module to the PBX Wall Jack 2-10 Connecting a Telephone Initial System Checks 2-12 Installation Options With Telephone US Companding Telephone Provides Dialing 2-14 Disable Data Metering Feature Immediate Speakerphone Activation Automatic Speakerphone Activation 2-16 Disable Busyout Feature During Local Loopback Test Changing Installation Options Page 2-18 LED Indications LED Indications Issue 2 November 1996 2-19 Table 2-2. LED Indication Summary LED Red Status of Unit Green 2-20 Table 2-2. LED Indication Summary Continued LED Description LED Red Status of Unit Green Selecting PC Communications Packages 2-22 If You Are Using a PC If You Are Using a Dedicated Terminal Configuration and Operation Operating Modes 3-2 Issuing Commands AT Command Line Prefix Command Buffer Command Line Set Up 3-4 Command Acknowledgment Repeating a Command 3-6 Sample Command Lines Configuration Parameters Parameter Storage and Retrieval 3-8 Page 3-10 Data Operation From Data Mode to Command Mode and Back Dialing a Data Call Storing a Telephone Number 3-12 Automatic Answering Remote Site Use 3-14 Reset and Configuration Recall Sample Command Lines 3-16 A Sample On-Line Session Starting the Session Possible Display Problems Disconnecting a Data Call 3-18 Voice Operations Using the 8400BPlus for Voice Dialing Dialing Instructions Dialing Delay Dialing Pause 3-20 Sample Command Line Page Page Troubleshooting How to Use This Chapter 4-2 Issue 2 November 1996 4-3 Table 4-1. Troubleshooting Guidelines Continued 4-4 Table 4-1. Troubleshooting Guidelines Continued Issue 2 November 1996 4-5 AT&D2 Table 4-1. Troubleshooting Guidelines Continued 4-6 Issue 2 November 1996 4-7 ATDP9,555-1212 ATDP9,,555-1212 ATS8=2 Table 4-1. Troubleshooting Guidelines Continued 4-8 ATS0=1 AT&D0 Table 4-1. Troubleshooting Guidelines Continued Issue 2 November 1996 4-9 ATQ0 ATX4 ATV1 Table 4-1. Troubleshooting Guidelines Continued 4-10 ATEl AT&S0&C0 ATE0 . As you type the ATE0 Table 4-1. Troubleshooting Guidelines Continued A AT Command Set A-2 Page A-4 Page A-6 Page A-8 Page A-10 Page A-12 Page A-14 Page A-16 Page A-18 Page A-20 Page A-22 Page A-24 Page A-26 Page A-28 Page A-30 Page Page B Dial Modifiers B-2 Page B-4 Page B-6 Page Page C S-Registers C-2 Page C-4 Page C-6 Page C-8 Page C-10 Page C-12 Page C-14 Page C-16 Page C-18 Page C-20 Page C-22 Page C-24 Page Page Page C-28 Page C-30 Page C-32 Page C-34 D Isolating Problems Using Loopback Data Tests Data Loopback Test D-2 Performing a Data Loopback Test Local Loopback Test D-4 Performing a Local Loopback Test Local Loopback Test with Self-Test Performing a Local Loopback Test with Self-Test D-6 Remote Loopback Test Performing a Remote Loopback Test D-8 Remote Loopback Test with Self-Test Performing a Remote Loopback Test with Self-Test D-10 Loop-Around Data Test Arrangement Page D-12 Setting Up a Loop-Around Data Test Arrangement Page D-14 Using the Loop-Around Data Test Arrangement Page Page E Quick-Reference Summaries E-2 Page Page Page E-6 Page E-8 Page E-10 Page E-12 Page E-14 Page E-16 Glossary Issue 2 November 1996 GL-1 GL A C D Issue 2 November 1996 GL-3 Glossary E H Page Page Page IN Index Symbols A B D E F G H I L N O P R S T V