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From: hanj@bronze.ucs.indiana.edu (Jining Han)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Why does my modem disable the serial port?
Message-ID: <1991May25.133555.7807@bronze.ucs.indiana.edu>
Date: 25 May 91 13:35:55 GMT
Sender: hanj@bronze.ucs.indiana.edu (Jining Han)
Distribution: na
Organization: Indiana University, Bloomington
Lines: 25



I have a very standard 286 (AMI bios), with 2 parallel ports and
2 serial ports.  The problem is, when I put a modem in, one of the
serial ports is disabled (com1 if I set modem to use com1 or com3,
com2 if I set modem to use com2 or com4).  

I have seen a lot of interrupt conflict problems where the modem
would not work well if the switches or jumpers are not correctly
set.   But I have never seen any modem that disables the serial
ports.  

Any ideas?  Thanks in advance.

Jining Han
Indiana University


PS. The modem I am using is
Atrie, by Atrie Technology
Inc. in Taiwan.
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Jining Han		     	|		  Indiana University
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