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Chapter 2 - Installation and Configuration
Operating Your MT2834ZPX
You control your MT2834ZPX by issuing AT commands and setting S-
Registers. Right now your MT2834ZPX is set up for the most typical
user application, that is, as a traditional modem set to make a dial-up
call to a remote installation where the call is answered automatically;
therefore, you shouldn’t need to change the current default
configuration. (If however, you know that your application does not
follow this profile, please refer to Chapters 3 and 4 for AT Commands
and S-Registers.)
In operating your MT2834ZPX it is likely that you will use your data
communications software to either:
• enter “terminal” mode, where you can “speak most directly” to the
modem by issuing AT commands, or to
•launch a datacomm session through a set of modem
configurations which you select and then associate with a target
telephone number. Once you have created, saved, and named
this set of information according to your connection needs and
your datacomm software’s conventions, the software then
simplifies your dialing because you needn’t reconfigure your
modem, nor run the risk of mistakenly keying-in incorrect
information.
Either way, you need to understand that an AT command is the
method by which your modem is controlled, and must therefore prefix
nearly all commands. AT stands for attention, and alerts the modem
that a command follows. You may enter these commands with either
upper- or lower-case characters. Entering AT automatically sets the
modem’s serial baud rate to match your computer’s and also sets the
modem’s parity. It also clears the modem’s command buffer.
Once you’re in terminal mode, enter AT followed by <CR> to check
whether your modem is operational. If everything’s fine, your modem
will respond
OK
.