Date   : Wed, 11 Apr 1984 13:43:52 EST
From   : David Towson (CSD) <towson@Amsaa.ARPA>
Subject: Re: RS-232 hookup info list

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