Uhh... can the KN-205 take 48vDC? I think you have to feed it with the
proper polarity or you'll have issues. You probably shorted out the board
when connecting the "grounded" antenna lead.
-Bob
----- Original Message -----
From: "Phillip Britt" <phil@team.wideband.net.au>
To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
Sent: Monday, November 29, 2004 2:51 PM
Subject: [Karlnet] Using Karnet in a -48v enviroment
Hi All,
We have recently commissioned a new site with licensed microwave gear for
backhaul. All this sort of gear and our routers use -48v ie, the neutral &
earth is positive.
We plugged in a KN-205 board off our power supply without the antenna
attached and it worked fine. Once the antenna as connected the board went
dead (no lights) and will now not function again.
Does anyone have any suggestions in what l can do here. I have been
considering changing the polarity of the 48v being feed into the KN-205 via
poe in case it was a polarity miss match.
Thanks,
Phil
_____________________________
Phillip Britt
Managing Director
Wideband Networks Pty Ltd
Phone: 03 5135 6888
Fax: 03 5134 1177
Mobile: 0418 528 521
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