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From: jhh@ihlpl.ATT.COM (Haller)
Newsgroups: comp.dcom.modems
Subject: Re: fixing RS232
Message-ID: <2596@ihlpl.ATT.COM>
Date: Wed, 26-Aug-87 13:51:17 EDT
Article-I.D.: ihlpl.2596
Posted: Wed Aug 26 13:51:17 1987
Date-Received: Fri, 28-Aug-87 06:51:19 EDT
References: <192@caeco.UUCP> <2849@phri.UUCP> <1146@mtune.ATT.COM> <2790@hoptoad.uucp>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 17
Keywords: Telebit, TrailBlazer, Modems, UUCP, 'g' Protocol, Mimicry
Summary: There is RS-232D

In article <2790@hoptoad.uucp>, gnu@hoptoad.uucp (John Gilmore) writes:
> ron@topaz.rutgers.edu (Ron Natalie) wrote:
> > I doubt there will be an RS-232D, they moved on to the RS-4XX standards
> > for serial lines.
> And the RS-4xx standards (e.g. RS-422, RS-423, RS-449) are even more broken
> than the RS-232C standard.  Would you believe a 39-pin plug with an
> additional optional 15-pin plug?  This is not a joke.

Actually RS-232D was approved by EIA either late last year, or early this
year.  It's significant new information was codifying subsets of RS-232C
that are in common use.

It has been generally realized that assigning pins to functions ala RS-4xx
was the wrong to go about things, since microprocessors are so cheap.
Multiplexing encoded signalling information is likely to be the next
type of connector, if any new ones are produced.  You may note that
the ISDN connector is just a modular jack, not a 157 pin connector.