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From: stone@quest.UUCP (Scott Stone)
Newsgroups: comp.dcom.lans
Subject: Shielded vs. Unshielded
Keywords: ethernet, twisted pair, shielded
Message-ID: <4015@quest.UUCP>
Date: 22 Jun 89 16:00:43 GMT
Organization: Quest Research Inc., Burnsville, MN
Lines: 23


  I would like some informed opinions on shielded vs. unshielded cable.

  We currently use unshielded twisted pair for most of our data cable
installations, and are considering using shielded twisted pair instead.
The cost of shielded is not considerably more than unshielded, seems to
be a safer option, and would give an upward growth path in the event we
want to run twisted pair ethernet, rather than (or along with) the RS-232 
serial we use now.

  Have you experienced noise problems on RS-232 using shielded?

  Do the current twisted pair ethernet solutions work just as reliably
  (or more reliably) on shielded twisted pair?

  When you ground one end of the shielded cable, where do you usually
  find a convenient ground?

Thanks in advance,
-- 
*
* Scott T. Stone	{rosevax,bungia}!quest!stone
*  (612) 894-7752