Solved

LT winmodem TX speed

Posted on 1998-09-10
1
329 Views
Last Modified: 2010-04-22
I have a PCI LT winmodem on my NT at work, and an ISA LT winmodem at home (win98). Both are working ok.
How do I setup (init, S registers, etc) my receiving winmodem to accomodate higher TX speeds over RX speeds.
I am only using it with RAS as a receiving modem, but it's probably not set up to maximize upload speed. BTW both have 5.18 drivers (v.90) and when used to dialout to a V90 isp - they work fine.
0
Comment
Question by:googol
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
graham_leach earned 200 total points
ID: 1637981
Assuming that your Linux system has recognized the PCI MODEM as a device:

When you say WinModem do you mean the sort of modem that offloads processing to a device driver that has to be loaded within the Windows Environment, like the USR Sportster Si?

Unless the manufacturer has a device driver specific for Linux, your chances of getting these modems to work at optimal levels is not good.

Questions to qualify a proper answer:

Who manufactures this modem?  
What does "accomodate higher TX speeds over RX speeds" mean?  
What are you trying to accomplish with this modem?
Which modem is the receiving one?
Are you trying to accomplish duplex or simplex communications?

In general, most MODEMs will work with the following string

AT &F

This sets the modem to Factory Default settings.  What that means is that it gets RID OF any icky settings that may be stored in the MODEM and preventing it from functioning in a generic environment, which most MODEMS are programmed to do "out of the box".

I suggest that you visit your manufacturers www site and also visit the following site for more information on the AT command set in general:

www.modem.com

As a rule, the following set of commands can be used pretty safely:

AT &D2 &C1 S95=15

Your MODEM may require more exotic settings, especially if you are trying to squeeze maximum performance out of it.

P.S.  Don't forget to set your serial port to 16550 via setserial or /etc/rc.d/rc.serial or any amount of tweaking your MODEM will come to nothing.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Unix process listing into CSV format 3 50
centos commands 6 91
rsyslog raw message 4 37
Unix Help with:  mailx -s 17 59
This is the error message I got (CODE) Error caused by incompatible libmp3lame 3.98-2 with ffmpeg I've googled this error message and found out sometimes it attaches this note "can be treated with downgrade libmp3lame to version 3.97 or 3.98" …
Network Interface Card (NIC) bonding, also known as link aggregation, NIC teaming and trunking, is an important concept to understand and implement in any environment where high availability is of concern. Using this feature, a server administrator …
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question