Multitech MultiModem MT2834ZPW, Owner'S Manual

Page: 56 / 94

MT2834ZPW Owner’s Manual
56
The Modem Cannot Connect When
Answering
• Auto-answer may be disabled. Turn on auto-answer in your data
communications program or send the command
ATS0=1 to your
modem in terminal mode.
File Transfer Appears 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.
Data Is Being Lost
• If you are using data compression, be sure the serial port baud rate
is set to a minimum of four times the data rate.
• Make sure the flow control method you selected in software
matches the method selected in the modem. If you are using
CompuServe’s WinCIM software, you must set the modem for
XON/OFF flow control (see Chapter 4 for the CompuServe
initialization string).