Spoke too soon. The board has died again. I got this thing from EC, and
they had to presumably order it from Karlnet. Any chance I can RMA it
directly to Karlnet this time, and save the fooling around?
Norm
----- Original Message -----
From: "Norm Young" <lists@applegatebroadband.net>
To: "Karlnet Mailing List" <karlnet@wispnotes.com>
Sent: Friday, October 03, 2003 8:31 AM
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
> > >
> > > _______________________________________________
> > > Karlnet mailing list
> > > Karlnet@WISPNotes.com
> > > http://lists.wispnotes.com/mailman/listinfo/karlnet
> > > --
> > > [This E-mail scanned for viruses by Declude Virus]
> >
> >
> > --
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> >
> > _______________________________________________
> > Karlnet mailing list
> > Karlnet@WISPNotes.com
> > http://lists.wispnotes.com/mailman/listinfo/karlnet
> >
>
>
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