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Multitech MT1432BA User Manual

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Chapter 1 - Introduction and Description

Chapter 5 - AT Command Mode Operation

Chapter 5

may be the most important chapter of this manual. It begins with an introduction and

discussion on Command Mode fundamentals. A flow chart is provided to illustrate Command Mode
and On-Line Mode operation and the methods used in each mode. Next, there is a summary of the
modem’s commands and responses. We then go into a detailed explanation of each modem
command, providing examples where applicable.

Chapter 6 - S-Registers

Chapter 6

covers the modem's S-Registers, which enable the user to establish, read, and modify

various modem options. All of the S-Registers are charted and explained, followed by instructions on
accessing the S-Registers and reading or changing their values.

Chapter 7 - Callback and Remote Configuration

Chapter 7

documents instructions on how to operate the modem's Callback and Remote

Configuration features; and the usage of LOGIN Passwords, Set-Up Passwords and Remote Escape
Characters as network management tools.

Chapter 8 - Testing Your Modem

Chapter 8

covers the modem's built-in test features. These are: Power-on Self Test, Back-To-Back

Test, Local Analog Loopback, Digital Loopback and Remote Digital Loopback Tests. We have
included a description of each test and how to use each test procedure.

Chapter 9 - DIP-Switches

Chapter 9

covers the modem’s printed-circuit board options. Sixteen DIP-Switch settings and the

modem's speaker volume control are explained in detail, including all default settings.

Chapter 10 - Warranty, Service & Technical Support

Chapter 10

provides statements on your five-year warranty, instructions for getting modems serviced

at the factory, the procedure for downloading firmware upgrades via FlashROM, information about
Multi-Tech's Bulletin Board Service (BBS), a section on receiving technical support via the
CompuServe/Internet forums and information on Multi-Tech's Fax-Back Service.

Appendixes

There are also several appendices at the end of this manual, most of which repeat information
contained in the chapters, but in a more condensed form. These appendices can be used as a quick
reference.

Appendix A

- Troubleshooting

Appendix B

- ASCII/HEX/Decimal Conversion Chart

Appendix C

- Pulse Dial and Tone-Dial Frequencies

Appendix D

- AT Command Summary

Appendix E

- DIP Switch Summary

Appendix F

- S-Register Summary

Appendix G

- Result Code Summary

Appendix H

- V.25bis Operation

Appendix I

- Cabling Diagrams

Appendix J

- RS-232 Interface Specifications

Appendix K

- Regulatory Information

This manual is related to the following products: