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
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