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From: plw@mgwess.UUCP (Pete Wilson)
Newsgroups: net.dcom
Subject: Re: lightning, PACXs and computers
Message-ID: <14933@mgwess.UUCP>
Date: Sun, 28-Jul-85 03:15:44 EDT
Article-I.D.: mgwess.14933
Posted: Sun Jul 28 03:15:44 1985
Date-Received: Mon, 29-Jul-85 07:21:12 EDT
References: <1397@islenet.UUCP>
Reply-To: plw@mgwess.UUCP (Wilson,Pete,PL)
Distribution: net
Organization: AT&T Information Systems - Montgomery Illinois
Lines: 24


	My horror story doesn't involve such an impressive array of
computational power, but an Onyx C8002 I have has suffered similar
damage twice in the last two years.
	Last year, (while I was vacationing in Hawaii, by the way)
lightning took out the I/O board and one terminal. This year, (while
I was vacationing in Wyoming!) lightning took out the I/O board,
three terminals, and the modem. Both times it also wiped out the
phones in building (multikey + intercom).
	The lightning did not hit the building, but somewhere nearby.
The communications lines for two of the terminals are strung across
an 80 foot hangar on the metal support beams. The cable is sheilded,
but I'm not sure if frame ground and signal ground are separated in
the computer or terminals. Yes, I do intend to break out my trusty
screwdriver, pop the covers off, and find out for sure (and make sure
they are!).
	In the meantime, any advice from some wizard EEs about any
protection methods would be greatly appreciated.


	Pete Wilson
	AT&T IS CBSG
	Montgomery Works
	..!ihnp4!mgnetp!mgwess!plw