Multi-Tech MT5634ZPX, Руководство пользователя

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MT5634ZPX
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2 Installation
Operating Your MultiModemZPX
You control your MultiModemZPX by issuing AT commands and
setting S-Registers. Now your MultiModemZPX 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
Chapter 3 for AT Commands and S-Registers.)
In operating your MultiModemZPX, 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
• launch a datacomm session through a set of modem
configurations that you select and then associate with a
target telephone number. Once you create, save, and name
this set of information according to your connection needs
and your datacomm software’s conventions, the software
then simplifies dialing because you don’t have to reconfigure
the modem nor 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 uppercase or lowercase characters. Once
you’re in terminal mode, enter AT followed by <cr> to check
whether your modem is operational. If everything is fine, your
modem responds
OK.