Paradyne KeepInTouch 3760 User Manual page 72

Table A-2 isolates problems to the connection between your
modem and computer. It focuses on the modem not accepting
AT commands from the computer.
Table A-2. Modem — Computer Connection
Symptom
Modem does
not accept or
echo back AT
commands
Action
Verify that the Configuration Program has
configured the modem for the correct
communications port. Refer to Chapter 2,
Installation .
Make sure that the communications software
has the correct COM port selected.
Make sure that all AT commands are terminated
with a carriage return.
Use your communications software to verify:
G
that the computer has a valid character
format. Valid format consists of 8 data bits
with no parity or 7 data bits with even, odd,
mark or space parity.
G
that the computer's nominal data rate
(57,600 bps–300 bps) is supported by the
modem.
Issue the ATE1 command to make sure that
characters can be echoed back to your monitor.
An OK response should appear. Then, enter an
AT and carriage return to make sure characters
display to your monitor.
Issue 3 April 1994
A-3