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From: jbh@mibte.UUCP
Newsgroups: comp.dcom.modems
Subject: Re: RS-232C
Message-ID: <2299@mibte.UUCP>
Date: Tue, 1-Sep-87 12:55:53 EDT
Article-I.D.: mibte.2299
Posted: Tue Sep  1 12:55:53 1987
Date-Received: Thu, 3-Sep-87 03:38:08 EDT
References: <192@caeco.UUCP> <2849@phri.UUCP> <1102@gilsys.UUCP> <2853@phri.UUCP> <1235@van-bc.UUCP>
Organization: Michigan Bell Telephone Company
Lines: 30
Summary: more modular RS232 adaptors

In article <1235@van-bc.UUCP>, sl@van-bc.UUCP writes:
> In article <635@imtec.co.uk> Russell Brown <russell@imtec.co.uk> writes:
> >In article <2853@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
> >>
> >>	With all that in mind, I think what we need is a new standard which
> >>implements hardware handshaking, smaller connectors, etc.......
> 
> How about AT&T using RJ45 Telephone style jacks for their 3B line of
> computers. In theory you are supposed to be able to buy the appropriate type
> of DB25 adaptor for each piece RS-232 equipment you have and then just use 8
> conductor cable with an RJ45 at each end.
> 
> Modtap also makes a complete system using these type of adaptors. It doesn't
> seem compatible with AT&T's, but seems to have more variations on how you
> can hook things up. They define everything in terms of DTESYS/DCESYS, 
> DTEDROP/DCEDROP, 4w/6w/8w drops. If you can figure out what each end of your
> cable should be, DTE/DCE, SYS/DROP, then determine which of 4w/6w/8w you
> need, then just order the appropriate parts.
> 
> {ihnp4!alberta!ubc-vision,uunet}!van-bc!Stuart.Lynne Vancouver,BC,604-937-7532

TRW also makes this kind of part.  In fact we obtained some from
AT and T.  The d25 plugs come in a variety of configurations,
even a generic male or female kit  but
we used the ones marked printer/terminal and just moved wires
inside if necessary.  Sure beats pulling 25 conductor cable
through the ducts.

Jim Harvey
ihnp4!mibte!jbh