Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!aecom!glen
From: glen@aecom.yu.edu (Glen M. Marianko)
Newsgroups: comp.dcom.lans
Subject: Re: How to Break your Cheapernet - bad Tee pieces
Keywords: BNC Tee Ethernet Cheapernet EtherTalk
Message-ID: <2343@aecom.yu.edu>
Date: 13 Jul 89 14:49:21 GMT
References: <335@wcc.oz>
Organization: Albert Einstein College of Medicine, NY
Lines: 26

In article <335@wcc.oz>, tom@wcc.oz (Tom Evans) wrote about the trials
and tribulations of using T connectors in thin ethernet.

Just to echo a bit, several months back someone mentioned a bad
T causing problems on his net.  Wiseguy that I am, I thought how
could you possibly have a bad T?  Well, living through one does
open up one's eyes!

This is a VERY serious problem.  I suspect that if one uses BNCs
and Ts from the same manufacturer, they stand a better chance of
interoperating better.  I can't confirm this, however.
I don't know if there is a BNC "standard" that describes the OD of
the center pin, but one can visually see that it does vary between
manufacturers.

What I have noticed about Ts is that the brand name ones (like Amphenol)
that one gets bundled with ethernet cards work better.  I guess you
get what you pay for.  Cheap Ts can go for as little as $1.50 in
reasonably small quantities, yet brand names can be advertised as
high as $15!

Anyone who found a reliable combination, (at a good price - better yet),
please post your sources.  Thanks!
-- 
-- Glen M. Marianko, Supervisor of Data Communications and Hardware Support
   glen@aecom.yu.edu - {uunet}!aecom!glen - CIS: 76247,450