Solved

check for bad modem port?

Posted on 1997-07-17
6
280 Views
Last Modified: 2013-12-27
My modem port no longer seems to work on my 68K Quadra 900. OS7.5.5, OT1.1.1 and OT/PPP. Connected to an AppleTalk network via Ethernet (just 2 machines).

Tested the connections, lines, cables and modem on another machine, and all worked okay. Tried another modem on the Quadra, and got the same error messages while trying to connect. ("Modem not responding, you should've voted Libertarian").

Any way to test the modem and printer ports? TechTool 1.1.3 thinks they're okay. If they're bad, is there any way to fix them without replacing the motherboard?
0
Comment
Question by:dooly
[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
  • 3
  • 3
6 Comments
 
LVL 2

Expert Comment

by:pxh
ID: 1542215
Did you try a terminal emulation software (e.g. Zterm) to directly communicate with the modem? Does it echo what you type? Did you check baud rates? Most modems do have LED which flash with in/out going data. Does your modem show any such reactions?

Peter

0
 
LVL 1

Author Comment

by:dooly
ID: 1542216
No, I don't really know how to use terminal emulation software. I think I might have something on ZTerm (from Global Village). What do I need to do?

I have tried other modems in both the modem port and the printer port (yes, I pointed to the right port in the communication software I use). None worked on my machine, but all worked on another machine.

I've heard of software called MacTest Pro that can be used to test these ports and other stuff on the logic board. Anyone have any ides how to get it?
0
 
LVL 2

Expert Comment

by:pxh
ID: 1542217
I have never heard about MacTestPro. There is TechTool Pro 1.0.4 which can test hardware. This is a commercial product and you will have to buy it ;-)
You were refering to TechTool 1.1.3, in my opinion this shareware application cannot test the serial ports.

Get Zterm, start it, select the port your modem is connected to. If things are correct you can type AT and then press enter and the modem should answer with OK. Many modems also react to At&V and display their configuration. If you can do this then your serial port is OK.

Let me know how far you get.

Peter (pxh@mpe-garching.mpg.de)
0
Webinar: Aligning, Automating, Winning

Join Dan Russo, Senior Manager of Operations Intelligence, for an in-depth discussion on how Dealertrack, leading provider of integrated digital solutions for the automotive industry, transformed their DevOps processes to increase collaboration and move with greater velocity.

 
LVL 1

Author Comment

by:dooly
ID: 1542218
Hey, that works pretty good on this PowerMac. Can't try it on my Quadra, which has the suspect ports, because it seems to have died.

For pxh only: Resubmit any ol' comment as an answer and you get the points.

Thanks!
0
 
LVL 2

Accepted Solution

by:
pxh earned 100 total points
ID: 1542219
Resubmission of the old comment:

Get Zterm, start it, select the port your modem is connected to. If things are correct you can type AT and then press enter and the modem should answer with OK. Many modems also react to At&V and display their configuration. If you can do this then your serial port is OK.

Glad I could help you,

Peter

0
 
LVL 1

Author Comment

by:dooly
ID: 1542220
I thought I graded this already...oh well, here goes again.

Thanks for the help.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
How do you identify the Mac RAID 5 block size and order? 10 107
IPhone 5 5 44
how can I get airport express to work on /31 subnet? 6 166
iMac A1225 Continuous Boot 24 94
Troubleshooting Apple Desktops has its challenges just like any component of high technology and innovation. Some hardware issues within Apple Desktops, are fairly simple to resolve and have straight-forward procedures. With other hardware probl…
A professional opinion on which Apple product to buy, and a tidbit about the WWDC.
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

739 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