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Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!sdcc3!madden
From: madden@sdcc3.UUCP (Jim Madden)
Newsgroups: net.lan,net.dcom,net.wanted
Subject: Request for info on local building wiring
Message-ID: <2535@sdcc3.UUCP>
Date: Mon, 10-Dec-84 06:48:16 EST
Article-I.D.: sdcc3.2535
Posted: Mon Dec 10 06:48:16 1984
Date-Received: Wed, 12-Dec-84 03:57:12 EST
Distribution: net
Organization: U.C. San Diego, Academic Computer Center
Lines: 38
Xref: watmath net.lan:556 net.dcom:737 net.wanted:5332

My campus is about to embark on project that will replace lots of four
wire data circuits supplied by the telephone company with connection
boxes on a broadband cable.  A part of the project involves
installation of the local wire that will connect terminals and
computers to network boxes one or two offices away.  To minimize labor
costs for this part of the project, we plan to use RJ11 6 wire modular
plugs, wall sockets and RS232 connectors of the kind supplied by Nevada
Western or Modtap.

The questions for the network are:

Have other institutions done similar things and can they provide us
with insights into the pitfalls facing us?

Is there any standard for the association (by color code or location on
the RJ11 jack) of the individual leads in the cables and the pins of the
RS232 connector?

In the absence of standards, are there well know pieces of equipment
from IBM, ATT, or other companies that we should regard as an effective
standard?

Although four wire circuits have been sufficient for most of our
terminal connections in the past, in this project we plan to install
six wire circuits for future flexibility.  We've chosen 6 wires
primarily since this seems to provide adequate signaling in both
directions and because such circuits can use RJ11 connectors.  More
wires require significantly more expensive equipment.  Are we making a
mistake here?

Does anyone have any late breaking information on broadband attachment
equipment for terminal-to-host, host-to-host and micro-to-anything that
will help us make a choice of such equipment in the next month?

In a week or two, I'll summarize any useful information I receive.

				Jim Madden
				sdcsvax!madden