Karlnet
[Top] [All Lists]

RE: [Karlnet] Heat Problems Continued - PoE solution for problems

To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] Heat Problems Continued - PoE solution for problems
From: "Charles Chia Sheng Wu" <cwu@cwlab.net>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Wed, 17 Dec 2003 22:05:26 -0600
List-post: <mailto:karlnet@WISPNotes.com>
it should...
$25

-Charles

-----Original Message-----
From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com]On Behalf Of jna@tcpbbs.net
Sent: Wednesday, December 17, 2003 8:54 PM
To: Karlnet Mailing List
Subject: Re: [Karlnet] Heat Problems Continued - PoE solution for
problems



Charles this is a link to an alvarion poe device, did not know such a
monster exsisted. Does this work with the 900 cpe? How much are they?

Thanks,
John


> what we have is
>
> http://www.wirelessconnections.net/downloads/techlit/PI-CAT5.pdf
> Part # 872447
> we got em on consignment, that's why they're so cheap...
>
> -Charles
>
> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
> [mailto:karlnet-bounces@WISPNotes.com]On Behalf Of Norm Young
> Sent: Wednesday, December 17, 2003 10:56 AM
> To: Karlnet Mailing List
> Subject: Re: [Karlnet] Heat Problems Continued - PoE solution for
> problems
>
>
> Are the KN-200s that are shipping now have temperature control on the fan
> header?   (I've got a KN-200 with a fan on it now, and to tell the truth,
> the fan doesn't use much power...and haven't had any temp. problems so
> far--with a 14vdc supply. But I'd like to replace it for that odd -10
degree
> day up there, when the last thing that needs to be happening is more
> circulation!) What about this problem with PoE heat?  Is this fixed?  I'm
> looking at a new WIPOP that needs to be PoE.
>
> Norm
>
> ----- Original Message -----
> From: "Charles Chia Sheng Wu" <cwu@cwlab.net>
> To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
> Sent: Tuesday, December 16, 2003 8:56 PM
> Subject: RE: [Karlnet] Heat Problems Continued - PoE solution for problems
>
>
> > Hi,
> >
> > We have a PoE injector/regulator solution that bypasses the ethernet
port
> > completely
> > By putting a voltage regulator at the top (and having user adjustable
> > setting to 5v, 9v, & 12v on our PoE solution), we're able to avoid many
of
> > the heat problems (basically, board is powered via the power jack, and
we
> > haven't seen any lockup issues w/ it)
> > best thing is price...it's $25 / set, and that includes power supply for
> 100
> > m, and voltage regulator splitter w/ 2 power ends (so you can also power
> an
> > amp, or power 2 boards up top)
> >
> > Offlist for more info
> >
> > -Charles
> >
> > -------------------------------------------
> > KarlNet Preferred Channel Partner
> > Ask us about our CPE leasing solutions...
> > 773.667.4585x334 (o)
> > 773.457.0718 (m)
> > 773.632.0571 (f)
> >
> >
> > -----Original Message-----
> > From: karlnet-bounces@WISPNotes.com
> > [mailto:karlnet-bounces@WISPNotes.com]On Behalf Of Bryan
> > Sent: Tuesday, December 16, 2003 10:35 PM
> > To: Karlnet Mailing List
> > Subject: Re: [Karlnet] Heat Problems Continued
> >
> >
> > I'm preparing to buy these - if the temps you reported are in
> > farenheight, they won't work for me....
> > If in celsius I'll be ok.
> > For my info, since I've not purchased yet & don't know what they report
> > in, is that F or C ?
> >
> > Bryan
> >
> > Michael McDermott wrote:
> >
> > >
> > > I'm aware the KN-100 boards could/do have possible heat problems, but
> > > apparently "the heat issue is resolved".
> > >
> > > Yesterday, a customer reported that 5 of his KN-100 boards failed due
> > > to heat. Yesterday the temperature had only reached 35 degrees.
> > >
> > > 4 of the units were equipped with senao 200mw cards (with heat sinks)
> > > in Demarc outdoor enclosures. Ethernet cable lengths were 10-15 meters
> > > and 12V1A power supplies where used. Also the customer was using
> > > latest revision of the firmware (4.44).
> > >
> > > 1 of the units was equipped with a 30mw (Orinoco) card in Demarc
> > > outdoor enclosure, Ethernet cable length was 10-15 meters and 12V1A
> > > power supply. This one also failed in this heat.
> > >
> > > All of these units failed with an on board temperature of about 59
> > > degrees, but the customer also reported that the some of other units
> > > did not fail had on board temperatures of 64 degrees. Why do some
> > > units fail with an on board temperature at around 59 degrees and
> > > others do not?
> > >
> > > This customer is pro-active as he is using lower voltage power
> > > supplies and has applied heat sinks to the cards. What else can we do
> > > to solve this problem without the use of fans?
> > >
> > > What is Karlnet doing to resolve these problems?
> > >
> > > Thanks.
> > >
> > > Michael R McDermott BEng (Comp. Eng.), MACS, IEEE
> > > Pre-Sales Technical Consultant
> > > Veritech Australia Pty Ltd
> > > _______________________________________________
> > > 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
> >
> > _______________________________________________
> > 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
>
> _______________________________________________
> 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

_______________________________________________
Karlnet mailing list
Karlnet@WISPNotes.com
http://lists.wispnotes.com/mailman/listinfo/karlnet

<Prev in Thread] Current Thread [Next in Thread>