Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!ctrsol!ginosko!uunet!zephyr.ens.tek.com!tektronix!gvgpsa!davew
From: davew@gvgpsa.GVG.TEK.COM (David C. White)
Newsgroups: comp.dcom.lans
Subject: Re: Simple thin ethernet question
Message-ID: <1224@gvgpsa.GVG.TEK.COM>
Date: 26 Jul 89 16:03:17 GMT
References: <2946@ukecc.engr.uky.edu>
Reply-To: davew@gvgpsa.gvg.tek.com (David C. White)
Distribution: usa
Organization: Grass Valley Group, Grass Valley, CA
Lines: 32

In article <2946@ukecc.engr.uky.edu> agollum@ukecc.UUCP (Kenneth Herron) writes:
>My question is quite simple:  all the docs we have on installing the
>cables show both halves of the cable running right up to the back of the
>computer, and the T connector attaching directly to the network card
>in the PC.  Does it HAVE to be this way?  Can we keep the main cable 
>and the T in the wall and run a short piece of cable to the network card?
>How long can this stub piece be?  Assuming we can't do this,
>any suggestions for doing this wiring aesthetically?

You will be breaking the standards if the tee doesn't connect directly
to the station.  I forget the exact specification, I'm sure somebody
will correct me, but I think it is about 2.7 cm from the tee.  Some
people have mentioned in the past that they have gotten away with
having a stub cable coming from the tee to the station, but this breaks
the spec and eventually your network will break and then you are going
to have a massive rewiring problem on your hands.

I have seen something about some sort of cable that looks like one
cable and makes the proper connection to the station, but is in
actuality two cables inside.  Somebody may be able to point you to this
product.

My recommendation is to go with twisted pair and forget the thinwire.
With twisted pair you can run voice and data to each office with only
one drop, and it certainly simplifies things for adding new connections
or making moves.


-- 
Dave White	Grass Valley Group, Inc.   VOICE: +1 916.478.3052
P.O. Box 1114  	Grass Valley, CA  95945    FAX: +1 916.478.3778
Internet: davew@gvgpsa.gvg.tek.com     UUCP:  ...!tektronix!gvgpsa!davew