Paradyne 3821PLUS manual Preface, Objectives and Reader Assumptions, How to Use This Manual

Preface

Objectives and Reader

Assumptions

This guide describes how to install the 3821Plus circuit card and operate the 3821Plus modem. It is intended for all users of the 3821Plus modem.

Each 3821Plus card comprises three modems. In general this guide refers to the 3821Plus modem with regard to operation and the 3821Plus card with regard to installation. The term 3800Plus refers to all the modems in the 3800Plus series, including the 3810Plus, 3811Plus, 3820Plus, 3821Plus, and 3825Plus.

How to Use This Manual

Chapter 1 provides information about 3821Plus hardware and software features, including the front panel and status indicators.

Chapter 2 provides instructions for installing the card, selecting factory configuration options, recovering the ability to use AT commands, and using AT command initialization strings.

Chapter 3 shows the options menus available from the Shared Diagnostic Control Panel (SDCP).

Chapter 4 provides instructions for displaying and changing AT commands and S-registers. These commands control all aspects of the modem's operation.

Chapter 5 provides general information about fax modem operation.

Chapter 6 shows how to use the SDCP of a COMSPHERE modem to access and control a remote 3800Plus modem.

Chapter 7 describes the security features of the 3821Plus modem, including AT commands and SDCP controls used to set security configuration options.

Appendix A shows the menu trees available from the SDCP.

Appendix B lists result codes produced by the modem.

Appendix C provides instructions for performing diagnostic tests when data communications problems occur, and explains the Automatic Firmware Download process.

Appendix D lists the technical specifications of the 3821Plus modem.

Appendix E provides cable pin assignments.

Appendix F provides V.25bis dialing information.

Appendix G provides an equipment list.

Appendix H shows configuration options whose validity or default values vary according to country code.

The Glossary provides a description of terms used throughout this guide.

3821-A2-GB20-40 January 1999 v