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RE: [Karlnet] KN-200 PoE update

To: "'Norm Young'" <lists@applegatebroadband.net>,"'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] KN-200 PoE update
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Fri, 3 Oct 2003 12:25:47 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Norm,

What configurator program did you use to get the temp?

Dan


> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com]
> On Behalf Of Norm Young
> Sent: Friday, October 03, 2003 11:31 AM
> To: Karlnet Mailing List
> Subject: Re: [Karlnet] KN-200 PoE update
> 
> Hooked up the PoE supply using the recommended polarity, and a 12vdc
> battery
> (about 12.5vdc).   The board ran fine (a bit warm, 50 degrees C in
open
> air,
> (indicated temp. from configurator), pulling about .6A.  Loaded
SG-4400
> (v4.43a).   Ran for awhile with the hardware reboot timer enabled, but
it
> looked like it was doing serial reboots, so disabled the timer.
> 
> Worked fine for about 24 hours, then this morning, noticed that the
board
> was offline and there was a hissing sound coming from the circuits.
> Vbat=
> 12.2vdc.   Did a hard reboot, and the board came up for  a few
minutes,
> then
> went right back to offline.   Changed the polarity to 7/8 positive and
4/5
> negative.  Board has come up and stayed up for the last 5 minutes, but
the
> hissing sound persists.
> 
> More to come...
> 
> 
> ----- Original Message -----
> From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
> To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
> Sent: Wednesday, October 01, 2003 6:52 AM
> Subject: RE: [Karlnet] KN-200 PoE
> 
> 
> > I would suggest that no more than 14-18volts go into the unit, and
don't
> > use the moto injectors as they are reversed and cause's the unit to
hiss
> > and will burn out the board or the injector in time
> >
> > if you keep (Ethernet port at kn200) voltage around 12volts, you
should
> > be ok
> >
> > > -----Original Message-----
> > > From: karlnet-bounces@WISPNotes.com
> > [mailto:karlnet-bounces@WISPNotes.com]
> > > On Behalf Of Charles Chia Sheng Wu
> > > Sent: Tuesday, September 30, 2003 11:32 PM
> > > To: Norm Young; Karlnet Mailing List
> > > Subject: RE: [Karlnet] KN-200 PoE
> > >
> > > actually, no
> > > due to overheating issues, there's now a power supply range to use
> > (and
> > > ONLY
> > > use)
> > >
> > > -Charles
> > >
> > > -----Original Message-----
> > > From: karlnet-bounces@WISPNotes.com
> > > [mailto:karlnet-bounces@WISPNotes.com]On Behalf Of Norm Young
> > > Sent: Tuesday, September 30, 2003 10:01 PM
> > > To: Karlnet Mailing List
> > > Subject: [Karlnet] KN-200 PoE
> > >
> > >
> > >
> > > I'm trying to power up one of the new KN-200 boards.  I'm looking
at
> > the
> > > PoE
> > > specs in the User Guide, and it appears that you can use any
voltage
> > from
> > > 12-48vdc, and any polarity scheme on 4/5, 7/8.  So, I thought I'd
go
> > with
> > > roughly 15vdc,  7/8 positive and 4/5 negative.   I'm hoping that
this
> > is
> > > correct.  (If so, it's pretty impressive.)
> > >
> > > Norm
> > >
> > >
> > >
> > > _______________________________________________
> > > Karlnet mailing list
> > > Karlnet@WISPNotes.com
> > > http://lists.wispnotes.com/mailman/listinfo/karlnet
> > >
> > > _______________________________________________
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> > > Karlnet@WISPNotes.com
> > > http://lists.wispnotes.com/mailman/listinfo/karlnet
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> >
> 
> 
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