Configuring and Testing Using the Windows Utility
3-7
* Detected by the modem from the AT prefix of the &W com
mand
that writes your defaults to NVRAM. Set your software to the desired
word length, parity, and serial port rate defaults before sending the
modem the AT . . . &W string.
Accessing the Modems
In order to perform the operations in this manual, the modems
must be accessed one at a time. To access a modem:
1.
Flip DIP switch 3 ON and DIP switch 4 OFF.
This will cause
the modem to display Result codes, so you can see what its
settings are and to echo AT commands, so you can see what
you type.
2. Connect a PC or laptop serial port to the modem’s RS-232
port.
3. Load a standard modem communications program
(terminal emulator) on the computer.
4. Set the serial port rate to 19.2K, 38.4K, or 57.6K
bps with the
following data format: 8 data bits, no parity, and 1 stop bit.
5. Test the connection by typing
AT <Enter>
. If the modem
responds
OK
, the connection is fine.
You are now ready to perform any of the configuring or testing
operations in this manual.
Changing the Default Template
Once you have decided which template will best fit the
situation, the modem can be programmed so that it loads that
template on booting up. For example, say that &F2, software
flow control, is the most desirable template. Once you have
accessed the modem you would:
1. Load template &F2 into active RAM.
2. Save the template to Non-Volatile Random Access Memory
(NVRAM).
Both steps 1 and 2 can be done with the following command
string:
AT &F2 &W <Enter>
