[hpsdr] Metis and Power Over Ethernet switches

[Erik Anderson]

>From what I've read about PoE it's based on a voltage differential across
two lines that aren't normally compared against each other.  Any ethernet
device that doesn't know about PoE wouldn't be seeing the power.

On Tue, Mar 8, 2011 at 8:03 AM, Jeremy McDermond <mcdermj at xenotropic.com>wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> On Mar 2, 2011, at 3:32 PM, andrea montefusco wrote:
>
> > ***** High Performance Software Defined Radio Discussion List *****
> >
> > Hi all,
> > while waiting for Metis, I am wondering if its ethernet interface is
> > compatible with PoE switches.
> > Someone ever did this test ?
>
> I don't remember seeing an answer to this.  I'm not sure what you're
> meaning by "compatible."  If you mean, "will Metis take power off of a PoE
> switch" the answer is "no."  If the answer is "Will Metis emit black smoke
> if it's hooked up to a PoE switch" I'm 99% sure that the answer is also
> "no."  It's not designed to work with PoE, but the gigabit chip is new
> enough that it should understand what PoE is and negotiate the correct
> parameters.
>
> To my knowledge, it has not yet been tried, though.  I'd do it for you, but
> I don't have a PoE switch hanging around the office.
>
> >   *am*
> >
> > --
> > Andrea Montefusco IW0HDV
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> --
> Jeremy McDermond (NH6Z)
> Xenotropic Systems
> mcdermj at xenotropic.com
>
>
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