Multitech MT2834ZDX Spécifications télécharger pdf (Page 78)

Quick Reference Guide

The Modem Cannot Connect When Answering

Autoanswer might be disabled. Turn on autoanswer in your data-

comm program or send the command ATS0=1 to your modem in

terminal mode.

File Transfer Is Slower Than It Should Be

You might have an older UART. For best throughput, install a

16550AFN UART or a Multi-Tech ISI serial port card. See the

“Quick Start” chapter for information on how to identify your UART.

If you are running under Windows 3.1 and have a 16550AFN

UART, you must replace the Windows serial driver, COMM.DRV, to

take full advantage of the UART’s speed. (See “The 16550 UART

and Windows 3.1” in MultiModemZDX Help.)

If you are using a slow transfer protocol, such as Xmodem or Ker-

mit, 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 com-

pression 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. (See “When to Disable Data Compression” in

MultiModemZDX Help.)

Try entering the L8 (List Online Diagnostics) command in online

mode, making a screen print of the diagnostics listing, and check-

ing for parameters that may be unacceptable (number of retrains,

round trip delay, etc.).

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 103 104

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