Avaya 8400B Plus 4-8

Troubleshooting

4-8 Issue 2 November 1996

The green LED is

flashing, and the red

LED is on, but the

8400B Plus Data

Module does not

automatically

answer the

incoming call.

The automatic

answer option is

not enabled.

From the command mode, type

ATS0=1

to turn on the automatic answer

feature. Set the value following the

equal sign (1 in the example) to the

ring number on which you want the

8400B Plus Data Module to answer an

incoming call. The automatic answer

feature is turned off by setting this

value to 0.

The automatic

answer option is

enabled, but the

terminal device is

not ready.

If the local terminal is a PC, configure

the communications software to turn on

the DTR lead, or set the 8400B Plus

Data Module to ignore the DTR lead by

typing

AT&D0

Transmitted and/or

received data

contains errors.

Speed settings of

the terminal device

and the 8400B Plus

Data Module are

not the same.

Change terminal device speed to agree

with the speed that was indicated in the

CONNECT nnnn message.

The local terminal

device and the

far-end device are

configured for

different parity

settings.

Change the parity setting of the local

terminal device to match that of the

far-end device.

Far-end data errors

occur only during file

transfer with PC

communications

package.

PC does not

support hardware

flow control.

Disconnect the call, change the

Disable Data Metering Feature option

to Yes, reestablish the call, and try the

file transfer again.

Table 4-1. Troubleshooting Guidelines — Continued

Symptom Problem Solution

ENTER

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