Multi-Tech Systems MT5600ZDX - Manual (Page 15)

15
Owner’s Manual
Is Your MultiModemZDX Ready for Use?
As soon as you have connected power to the modem, if you’re an
experienced modem user, you may simply want to check your modem’s
settings for data compression, error correction, and so on. You may find that
you can get moving quite quickly if you just issue the AT&V command.
This command lists how your modem is currently configured, the stored
(user) profiles, and the first four stored telephone numbers. If you come
across a setting you’re unsure of, refer to Chapter 3 of this manual for AT
command and S-Register explanations and defaults.
If you’re a novice, please continue to the next sections of this chapter.
Operating Your MultiModemZDX
You control your MultiModemZDX by issuing AT commands and setting
S-Registers. Right now your MultiModemZDX 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 MultiModemZDX 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