lightning on the phone lines

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Article #19812

#19812

From: Jon Zeeff
Date: Wed, 05 Oct 1988 15:01

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Having lost 3 modems in two lightning storms, I am suddenly interested 
in surge suppressors for the phone lines.  I bought an inexpensive one 
that appears to have a small glass tube running from each line to 
ground.  The tubes look like large diodes, except that inside they 
appear to have something like a resistor inside.  I beefed this up by 
adding MOVs from each line to ground.  

Is this adequate protection?

The modems were turned off when they were ruined - is it better to leave
them on?

-- 
Jon Zeeff      			Branch Technology,
umix!b-tech!zeeff  		zeeff@b-tech.ann-arbor.mi.us

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!pyrdc!pyrnj!rutgers!mailrus!b-tech!zeeff
From: zeeff@b-tech.UUCP (Jon Zeeff)
Newsgroups: sci.electronics,comp.dcom.modems
Subject: lightning on the phone lines
Message-ID: <4789@b-tech.UUCP>
Date: 5 Oct 88 15:01:54 GMT
Organization: Branch Technology, Ann Arbor, MI
Lines: 15