0049-1800-xxx 326X V.34, V.34-SDC and V.32bis Series Modem – USER’S GUIDE 02/23/2010
Rev. A
Page 38
of
205
•
Appendix A
to change parameter options, and to enter and dial a telephone number. The
Reference Card
shows the complete menu structure.
•
Chapter 6
for a discussion of typical problems and ways to correct them.
Using the Modem with a Network Management System (NMS)
Modem functions can be configured and controlled from an NMS. Refer to:
•
The network management system documentation
•
Appendix A for brief descriptions of parameter options and features
•
The
326X Series Modem Reference Guide
for detailed descriptions of parameter options and
features
Using the AT Automatic Calling Unit (ACU)
To connect the modem to an asynchronous terminal – a terminal without software- or a PC running
an asynchronous communications software package, you use the modem’s AT Automatic Calling
Unit (ACU) interface.
The AT ACU is compatible with:
•
The industry-standard AT command set (AT and AT& commands)
•
The Raymar-Telenetics enhanced AT command set (AT
*
commands)
AT commands define how the modem is configured, how it makes calls, and what test operations it
performs. The AT command set lets you configure and operate modem options and features from the
PC or asynchronous terminal keyboard.
Using the Modem with an Async Terminal
If you are connecting the modem to an asynchronous terminal, you can use the AT ACU to configure
parameter options from the keyboard. Learn the AT command syntax in order to generate the
appropriate AT commands.
Where Do I Go from Here?
To continue configuring the modem from an asynchronous terminal, refer to:
•
Chapter 4
for configuration instructions.
•
Chapter 5
to learn AT command syntax.
•
Chapter 6
for a discussion of common problems and how to correct them.
•
Appendix A
to change configuration options. The
Reference Card
shows the complete
menu structure.
(The modem also supports an ITU-TS V.25bis ACU for initiating calls from an asynchronous or
synchronous DTE, described later in this chapter.)
