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000137_news@columbia.edu_Wed Jun 14 05:34:35 1995.msg
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From: jrd@cc.usu.edu (Joe Doupnik)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Using Kermit as a Line Analyser
Message-Id: <1995Jun14.113435.53985@cc.usu.edu>
Date: 14 Jun 95 11:34:35 MDT
References: <3rmm98$89r@starlight.datlog.co.uk>
Organization: Utah State University
Lines: 20
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <3rmm98$89r@starlight.datlog.co.uk>, dcoles@datlog.co.uk (Dave Coles) writes:
> I occasionally need to monitor traffic on RS-232 lines connecting
> computers to terminals, modems, computers and other equipment capable of
> providing an RS-232 connection. The frequency is such that buying a
> line/protocol analyser is not a justifiable expense.
>
> I would like to use Kermit on a PC to provide the capability to
> display/log the traffic up and down the line. The line characteristics
> baud rate, stop/data bits and parity will always be known. Connection
> will be via a three plug ribbon cable connecting both endpoints and the COM1:
> port on the PC.
>
> Has anyone tried this? What cabling/Kermit problems will occur when I try
> to connect everything together?
--------
The problems are electrical in the first instance. RS-232 receivers
draw current and paralleling them is not a swift idea. Kermit runs only one
serial port at a time, and thus cannot have UARTs snooping on two wires at
once.
Joe D.