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From: towson@Amsaa.ARPA
Newsgroups: net.micro.cpm
Subject: Re:  RS-232 hookup info list
Message-ID: <12199@sri-arpa.UUCP>
Date: Wed, 11-Apr-84 08:43:52 EDT
Article-I.D.: sri-arpa.12199
Posted: Wed Apr 11 08:43:52 1984
Date-Received: Wed, 9-May-84 23:46:33 EDT
Lines: 14

From:      David Towson (CSD) <towson@Amsaa.ARPA>


Randolph - I enjoyed the guide to RS-232 connections.  I wonder, however, why
you gave such a nice description of the use of Ring Indicator, and then said
to LEAVE IT OPEN.  Huh?  Also, I'd like to know how a modem can assert ANY
RS-232 signal when it is off.  It seems that the plus-and-minus three volts
"forbidden zone" in the standard would make it impossible for signals to be
asserted when the modem is off (unless the modem contains a battery).  Or did
you decide to slip April Fools Day to the fourth?


Dave
towson@amsaa