[NCSA-discuss] lightning protection on ethernet

[johjeff at gmail.com]

In a datacenter the racks are usually well grounded. If you are using off the shelf waps and have no way to properly ground them, or don't know the bldg is grounded, then you should probably use the protectors.

jeffrey johnson

--- Original Message ---
From:"Joseph Mack NA3T" <jmack at wm7d.net>
Sent:Fri 5/16/08  7:42 pm
To:ncsa-discussion at ncsysadmin.org
Subj:[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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