Paradyne KeepInTouch 3760 User Manual page 78

If the modems are having trouble passing data after connecting,
Table A-4 lists several recommendations and solutions to this
problem.
Table A-4. Online Operation
Symptom
Data is
scrambled
Missing data
during a transfer
Garbage
characters
appear on your
monitor when
your modem
connects to
another modem
Modem hangs
up, but does not
indicate a hang
up
Action
Use your communications software to verify that
the character format (data bits, parity, and stop
bits) is set to the same value in both modems.
Verify that you are using the same method of
flow control for both the modem and the
computer.
If using XON/XOFF flow control, verify that the
modem's parity matches the computer's parity.
The KeepInTouch Card modem contains a
16550A compatible UART which is useful for
high-speed data transfers. Make sure that your
communications software supports a 16550A
UART and high data rates.
Your modem is not using error control, and the
other modem is using error control. The garbage
characters are part of the error control
handshaking sequence.
Make sure that the &D2 command (Standard
RS-232 operation) is set.
Make sure that the &C1 command is set so that
when the CD signal turns Off, the modem hangs
up.
Issue 3 April 1994
A-9