As far as our power supplies are concerned, we've used an 18v and a 14v. It
doesn't appear to make any difference in which one we use. As far as the fan,
doesn't 120mm fan seen a bit over-kill? We have thought of using the 5v header
that is on the board to power a small fan, but I don't see it doing enough good
without a heatsink for the cpu. Another thought we've had an will be trying
soon is using just a sheet of thin aluminium to mount on the backside and
provide shade from the sun.
Has anyone found some good cheap heatsinks that will work?
Has anyone found some small fans they like too?
Thanks,
Paul
Source One Internet
*********** REPLY SEPARATOR ***********
On 7/28/2003 at 2:31 PM Steve Loomis wrote:
>We are running Karlnet board with Teletronics 200mw card and an Orinoco
>32mw
>card in a metal box high on the tower with a 120mm muffin fan blowing
>across
>both cards. The box is sealed and has been surviving the 100+ degrees
>temperatures in the Oklahoma sun. No lockup so far. We are using a 15vdc
>power supply on approx. 120' of CAT 5 via POE adapter. The fan is power
>separately via another run of CAT 5.
>
>Steve
>
>----- Original Message -----
>From: "Larry Yunker (Cyber Broadcasting)" <leyunker@cbcast.com>
>To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
>Sent: Monday, July 28, 2003 12:37 PM
>Subject: Re: [Karlnet] Thermal Solutions
>
>
>> We found that running at a lower voltage helped with breakdowns. We were
>> running one Karlnet board on a Hyperlink 48V-DC injector with 150ft of
>cat5.
>> The Karlnet board was locking on hot days. We then dropped to a 24V-DC
>> power injector (CANOPY) and we haven't seen a lockup since we made the
>> switch. Could have been a thermal thing... could have just been too much
>> power.
>>
>> Larry
>>
>>
>> ----- Original Message -----
>> From: "Wisp Notes" <wisp-notes@s1-i.net>
>> To: <karlnet@WISPNotes.com>
>> Sent: Monday, July 28, 2003 11:43 AM
>> Subject: [Karlnet] Thermal Solutions
>>
>>
>> I just wanted to know what everyone else is using as a thermal solution
>for
>> the WPCPE+ boards right now. We have heard a few from some people, but
>they
>> didn't sound like they have really tested anything to be sure. All of our
>> enclosures are aluminum with a glossy white finish. It works fine for
>many
>> of the boards, but hot weather has made many also a few degrees too hot.
>Any
>> info would help. I'm also surprised I haven't seen anything else about
>this
>> on the list yet.
>>
>> Thanks,
>>
>> Paul
>> SourceOne Internet
>>
>> _______________________________________________
>> 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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