Go for the 15v power supplies. We had the same problem with radio's
rebooting with the 12v power supplies. Going to 15v took care of the
problem. This was on 3 different AP's a 1 client with very short POE runs.
As far as heat is concerned, 2 of our AP's have seen heat up to 150 degrees
and they were resetting but this was when we had the 12v power supplies in
them. When we switched to the 15v power supplies, we also added reflective
material to the boxes the radio's were in. We bought one of those winshield
covers at Wal-Mart and cut it up to fit around the box. Really helped
temperature on the boxes that are in direct sunlight The most we see is 120
degrees now. Of course our summer here in chicago is only getting started.
Hope this helps.
Dan
-----Original Message-----
From: karlnet-bounces@WISPNotes.com [mailto:karlnet-bounces@WISPNotes.com]
On Behalf Of David Dietrich
Sent: Thursday, July 15, 2004 10:54 AM
To: karlnet@WISPNotes.com
Subject: [Karlnet] heat and PoE
Hello all,
I'm new to the list. I've recently launched a Turbocell
based wisp, things are going pretty well. Question I had
about PoE: Does using 15v and over for the kn-105 result in
less heat? The tech guy at KarlNet told me that the 12v I'm
using is actually below their current minimum recomendation
of 15v. I'm in Texas, and these babies are running HOT.
During the middle of the day, customer CPE's are typically
reporting 150 Farenheit. I have a variety of
antennas/enclosures. I have one CPE with a 200mw card
mounted in the sunlight that is resetting, I'm replacing the
card in that one today. It is the only one resetting, and I
have seen it report as high as 175 degrees. Yikes!
Anyhow, if anyone has insight on PoE as it relates to heat
please chime in.
Thanks,
David
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