Short - Straight - and on a single point ground system.  You want to become
one with the tower.  You do not want to make your equipment the least
resistant pathway to ground.

You might also request that additional (three (3) or more) 8 ft ground rods
be driven on 16 ft centers from existing rods and bond them together with #2
solid wire to each other and the existing rods.

We have used Tripp-Lite TLP810NETs in the past.  It provides surge
suppression for Ethernet and power.  Tripp-Lite DNET1's also are good for
Ethernet surge suppression.

I would also recommend if you are using shielded CAT5 to properly ground it
at the tower and before entry into the enclosure (similar to a coax
grounding kit).  

Keep the lightning on the outside.

Jeff

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Dan Metcalf
Sent: Tuesday, August 02, 2005 3:24 PM
To: 'WISPA General List'
Subject: [WISPA] Grounding questions/help

I have several towers, all of which except for 1 never have any issues,
however,
this 1 tower (we are the only tenant) seems to have a problem each year
during
lightning season...

Last night it took a hit, although it appears it came through the electrical
and
not the tower, but I'm not sure, the UPS was off, I reset it and it came
back
online --- but the POE injector did NOT, it was completely shot.

Replaced the POE unit and the wireless gear came online, but started
rebooting
after about 15minutes (although it didn't this before, I just changed the
POE
from a 12v to 15v) tried a 24v POE, and the radio was still rebooting...
Called
the tower climber..

Anyways I looked over the ground and the tower appears to 3 ground rod off
each
tower leg and then the building has a separate ground rod - (unless its
connected underground)

Any thoughts?

Thanks

Dan

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