Newsgroups: comp.dcom.lans
Path: utzoo!censor!bert!sellers
From: sellers@bert.ER.Bell.CA (Dave Sellers)
Subject: Re: What *is* "twisted pair"? (was Re: Thick or Thin Ethernet?)
Message-ID: <1991Jan19.144629.984@bert.ER.Bell.CA>
Reply-To: sellers@bert.UUCP (Dave Sellers)
Organization: E&R, Bell Canada
References: <3832@mentor.cc.purdue.edu> <1991Jan16.175003.2978@zoo.toronto.edu> <6314@ecs.soton.ac.uk>
Date: Sat, 19 Jan 1991 14:46:29 GMT

In article <6314@ecs.soton.ac.uk> tjc@ecs.soton.ac.uk (Tim Chown) writes:
>In <1991Jan16.175003.2978@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes:
>
>>central hub where faults can be isolated).  We use thin within our machine
>>room, but plan to go with twisted pair if/when we start doing Ethernet to
>>users' offices.
>
>What exactly is "twisted pair" and what are its performance
>characteristics when compared against conventional (thin) ethernet?
>
>You mention that you run the twisted pair back to a central hub. Does
>this mean a separate connection to each office from the hub? 
>
>	Tim

Well here at Bell we have hundreds of users PCa and SUN workstations connected
with UTP (Unshielded Twisted Pairs). The performance is better than coax
(from what I have read on the tech side of things) because each concentrator
amplifies and corrects/filters the signals. 

Now we can support both TRN and Ethernet on the same concentrator. There is
even Network management support. I could go on and on, but if you have the
money (this harware costs much more that wire) and you have problems to
solve, find out more about this equipment from Synoptics.
-- 
Dave Sellers
Computer Systems Advisor
Network Operations (Support Systems)
Bell Canada, 393 University Ave., Toronto, Ont., (416) 978-1311
