[NCSA-discuss] lightning protection on ethernet

[Jim Ray]

If mother nature wants to get you, she is going to get on with her bad
self, and there is nothing we can do about it. I vividly remember losing
a phone system to lightning even with the most expensive, fastest
reacting gas discharge protectors on the phone lines and UPS on the
power.
 
Mother nature does not play by the rules.

Some folks use fiber optics and media converters to go between buildings
to protect against voltage differentials. I would not use protection on
100-200' Ethernet inside a buidling.

Regards,
 
Jim
 
Jim Ray, President
Neuse River Networks
tel: 919-838-1672 cell: 919-606-1772
http://www.NeuseRiverNetworks.com
 
Connecting You to the World since 1997
 
We specialize in managed services, IT outsourcing and installation of
network communications systems for voice, video and data.

 
 

-----Original Message-----
From: ncsa-discussion-bounces at ncsysadmin.org
[mailto:ncsa-discussion-bounces at ncsysadmin.org] On Behalf Of Joseph Mack
NA3T
Sent: Friday, May 16, 2008 7:42 PM
To: ncsa-discussion at ncsysadmin.org
Subject: [NCSA-discuss] lightning protection on ethernet

Over the years I've lost 2 monitors, a serial port on a Mac toaster, and
a port on a switch to lightning, all at home.
It would seem that lightning needs to be handled with some sort of
protection.

However all the large installations I've worked at (1000 people over
many buildings) don't seem to have lightning protectors on the ethernet
and don't suffer from it.

I'm about to wifi a building which will involve long
(100-200') runs of ethernet and was wondering whether I should put
lightning protectors on the ethernet lines. 
They're about $100 each and you'll need one at each end of the ethernet
cable. The lightning protectors are worth more than the waps. However
down time is more expensive that both of these.

Anyone have anything to say about lightning protectors on ethernet?

Thanks Joe

--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina jmack (at) wm7d (dot)
net - azimuthal equidistant map generator at
http://www.wm7d.net/azproj.shtml Homepage http://www.austintek.com/ It's
GNU/Linux!
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