v
3825-A2-GB30-20
November 1996
Preface
Objectives and Reader
Assumptions
This manual describes how to install and operate the
3825Plus modem. It is intended for all users of the
3825Plus modem.
How to Use This Manual
Chapter 1 provides information about the 3825Plus
modem’s hardware and software features, including the
front panel and status indicators.
Chapter 2 provides instructions for installing the
modem, selecting factory configuration options,
recovering the ability to use AT commands, and using
AT command initialization strings.
Chapter 3 provides general information about fax
modem operation.
Chapter 4 provides instructions for displaying and
changing AT commands and S-Registers. These
commands control all aspects of the modem’s operation,
including Security, which is described in a separate
section of this chapter.
Chapter 5 shows how to use the Diagnostic Control
Panel (DCP) of a COMSPHERE modem to access and
control a remote 3825Plus modem.
Appendix A lists result codes produced by the modem.
Appendix B provides instructions for performing
diagnostic tests when data communications problems
occur, and explains the Automatic Firmware Download
process.
Appendix C lists the technical specifications of the
3825Plus modem.
Appendix D provides EIA-232-E and JM8 to RJ11
crossover cable pin assignments.
Appendix E provides V.25bis dialing information.
Appendix F shows configuration options whose
validity or default values vary according to country code.
The Glossary provides a description of terms used
throughout this manual.
Related Documents
3980-A2-GB30
COMSPHERE 3800Plus
Modems, User’s Guide
6700-A2-GY31
COMSPHERE 6700 Series
Network Management System,
User’s Guide
6800-A2-GE26
COMSPHERE 6800 Series
Network Management System,
User’s/System Administrator’s
Guide
Call your sales representative to order additional
product documentation.
