[Soekris] POE maximum voltage?

[Frank Cole]

Hi Dave,

	There actually is an easy answer: DC to DC converter.

	And yes, above 48v on PoE is generally bad even though it might work on 
some systems.

Frank

Dave Parker wrote:
> Hello
> 
> I have what I'm guessing is a really easy to answer question:
> 
> Is 59.2vDC an unacceptably high voltage to send through a POE injector
> to a net4526?
> 
> I've salvaged a bank of lithium batteries and charger from an electric
> scooter, and while I'm suspecting that there are enough amp hours there
> to run the board for "a very long time" without charging, I'd like to
> use those amp hours for other things, so I'd like to use the charger
> while the board is in operation. The charger's logic  appears to have
> voltage top out at around 59.2v, and maintenance is around 56v.  The
> former scares me a bit.  Will the board tolerate that?  Is there
> something I should add to the circuit to protect the board while the
> charger is operating?  The cat5 run from the injector to the board is in
> the 5-8' range.
> 
> I've tried finding a concise answer to this question with some extensive
> googling to no avail aside from two documents that mention "absolute
> maxium voltage = 68vDC.  That's not enough to make me feel secure about
> my magic smoke, hence... I ask :)
> 
> Thanks in advance,
> 
> Dave Parker
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> Soekris-tech at lists.soekris.com
> http://lists.soekris.com/mailman/listinfo/soekris-tech
> 
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