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MT2834ZPX Owner's Manual
The Modem Cannot Connect When Answering•
Auto-answer may be disabled. Turn on auto-answer in your
datacomm program or send the command ATS0=1 to your
modem in terminal mode.
File Transfer Is Slower Than It Should Be•If you are using a slow transfer protocol, such as Xmodem or
Kermit, try Zmodem or Ymodem/G instead.
•
Is your line noisy? If there is static on your line, the modem has to
resend many blocks of data to insure accuracy. You must have a
clean line for maximum speed.
•
Are you downloading a compressed file with MNP 5 hardware
compression enabled? Since hardware data compression cannot
compress a file already compressed by an archiving program, the
transfer can be marginally slower with data compression enabled
than with it disabled.
•
Try entering the L8 (List Online Diagnostics) command in online
mode, making a screen print of the diagnostics listing, and
checking for parameters that may be unacceptable (number of
retrains, round trip delay, etc.).
Losing Data•
If you are using data compression and a high speed serial port,
set the serial port baud rate to four times the data rate.
•
Make sure the flow control method you selected in software
matches the method selected in the modem. If you have a
Macintosh, you may have the wrong cable for hardware flow
control.
•
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.
•
Try entering the L8 (List Online Diagnostics) command in online
mode, making a screen print of the diagnostics listing, and
checking for parameters that may be unacceptable (number of
retrains, round trip delay, etc.).