Losing Data; Garbage Characters On The Monitor - Multitech MultiModem MT5600ZDXV Owner's Manual

2.7.7

Losing Data

4 If you are using data compression and a high speed serial port, set the serial
port baud rate to four times the data rate.
4 Your UART may not be reliable at serial port speeds over 9600 bps or
19,200 bps. Turn off data compression, reset your serial port speed to a
lower rate, or replace your serial port with a faster one.
4 Make sure the flow control method you selected in software matches the
method selected in the modem.
4 If you are running under Windows 3.1 and have a 16550AFN UART, you
may need to turn on the 16550's data buffers and/or replace the Windows
serial driver, COMM.DRV.
4 Try entering the &V (View Parameters) command, making a screen print
of the diagnostics listing, and checking for parameters that may be
unacceptable.
2.7.8

Garbage Characters on the Monitor

4 Your computer and the remote computer may be set to different word
lengths, stop bits, or parities. If you have connected at 8-N-1, try changing
to 7-E-1, or vice-versa, using your communications software.
4 You may be experiencing line noise. Enable error correction, if it is
disabled, or hang up and call again; you may get a better connection.
4 At speeds above 2400 bps, the remote modem might not use the same
transmission or error correction standards as your modem. Try connecting
at a slower speed or disabling error correction. (With no error correction,
however, line noise can cause garbage characters.)
4 Try entering the &V (View Parameters) command, making a screen print
of the diagnostics listing, and checking for parameters that may be
unacceptable.