Multi-Tech Systems MT3410ZLX-T/2 Appendix B AT Commands Registers & Result Codes Introduction

Appendices

Appendix B - AT Commands,

S-Registers & Result Codes

Introduction

This chapter describes how to use MT3410ZLX AT commands, S-Registers and Result Codes.

How To Use AT Commands

Usually, your fax and data comm software controls the modem for you. However, you may also want to use the AT commands. These commands give you complete control over your modem. You need to be careful when using these commands, because they can cause your software to loose its ability to control the modem. If you do find that an AT command has caused a problem, then turn the computer off and then back on. That will reset most AT commands to the factory default settings. You can also type AT&F&WZ to go back to the factory default setting.

To use an AT command, you must first:

1.Run your communication software.

2.Configure the software for the appropriate COM port and IRQ settings, if necessary.

3.Enter Terminal mode (also “Command mode”, “Local mode”, or “Direct mode”). This is the mode in which most data comm software packages start up. You can then type the desired AT command, then press the Enter key.

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