Path: utzoo!attcan!uunet!pmafire!uudell!bigtex!texsun!newstop!exodus!lvs.Eng.Sun.COM!karl
From: karl@lvs.Eng.Sun.COM (Karl Auerbach)
Newsgroups: comp.dcom.lans
Subject: Re: Novice 10BaseT questions.
Message-ID: <2877@exodus.Eng.Sun.COM>
Date: 15 Nov 90 19:45:33 GMT
References: <7271.27417738@vax1.tcd.ie>
Sender: news@exodus.Eng.Sun.COM
Organization: Sun Microsystems, Mt. View, Ca.
Lines: 26

In article <7271.27417738@vax1.tcd.ie> cnolan@vax1.tcd.ie writes:
>Hi, 
>We're considering going to 10BaseT to connect up one of our buildings that is
>already wired for RS-232.  From what I've seen this would seem to be the way to
>go.

I can't tell you much about the technical specifications of 10-base-T,
but we used it to build the Interop network (15 to 20 miles of cable,
an uncountable number of drops, but the number was many hundred, etc) and
the thing worked without a hitch.

We had some non-production runs ("spy cables") which were close to
double the standard's 100 metre limit and these seemd to work just fine
as well.

About the only trouble we had was with some 10BaseT to Cheapernet MAUs.
All the 10BaseT to AUI MAUs worked well.

One thing that made life much better for the '90 Interop over the '89 show
was that we found some real nice RJ45 crimp-ons for building the cables.
(These were from Thomas and Betts.)  However, these were very, very
slightly too wide for the inter-plug spacing on the various David and
Cabletron hubs we used.  Things worked, but it was a bit of a squeeze on a
full hub.

				--karl--