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From: sutter@osu-eddie.UUCP (Bob Sutterfield)
Newsgroups: net.lan
Subject: Re: Need Thin Ethernet Info
Message-ID: <1238@osu-eddie.UUCP>
Date: Mon, 3-Feb-86 13:53:59 EST
Article-I.D.: osu-eddi.1238
Posted: Mon Feb  3 13:53:59 1986
Date-Received: Fri, 7-Feb-86 10:20:24 EST
References: <1575@emory.UUCP>
Distribution: net
Organization: OSU Instruction & Research Computer Center
Lines: 38

> Unless I misunderstand, I can just wire a series of offices with
> thin ethernet, leaving an exposed T-connector in each. Then as the
> the need arises just cable the Sun to open tap on the T. If I
> ...
> Ken Mandelberg
> Emory University
> {akgua,sb1,gatech,decvax}!emory!km   USENET
> km@emory                      CSNET
> km.emory@csnet-relay          ARPANET

*** REPLACE THIS ailing cable WITH YOUR wire cutters ***

If by "a series of offices" you mean to daisy-chain a series of stations via
cables in the walls or above suspended ceilings, please consider what will
happen if you have a cable fault - how much gypsum board and suspended
ceiling dust do you consider reasonable on your equipment and down the back
of your collar, before you dig out enough cable to find the fault?  And how
many workstations "downstream" do you want out of commission during that
time?

DEC, at least, suggests installing a DELNI-like thing (that they have just
announced) that is a repeater between a thick backbone and eight skinny
legs.  Each of these legs, they suggest, should go to uniquely one wall
jack, and any daisy-chaining of workstations should be done on the bench or
along the baseboard.  This way, you can isolate the faults in the open air
and a fault on one leg will only affect the workstations in that office or
lab - presumably all easily visible from each other.  Also, "downstream"
users will probably be officemates or coworkers in the same lab, and
therefore (we hope) more sympathetic...

It sounds pretty reasonable to me, but then I haven't worked with this
particular type of cable yet, just several others.  Any opinions from anyone
who has touched the stuff?
-- 
-----
Human: Bob Sutterfield
 Mail: sutter@osu-eddie.UUCP              sutterfield-r%osu-20@osu-eddie.UUCP
   or: sutter@osu-eddie.ohio-state.CSNET  sutterfield-r@osu-20.ohio-state.CSNET