RE: Power over the Ethernet

["Ian Lowe" <ian@xxxxxxx>]

NO!!

I have been looking a lot at 802.11af, and it's not as easy as it would
seem. :(

Homebrew POE, simply running power over cat5 is easy, and no big hassle,
but making it work with purchase 802.11af kit (the proper standard for
PoE) is trickier:

There's a bunch of stuff on the www.powerdsine.com site, as they were
one of the key developers of the 802.11af standard, and make power
modules that work with the Cisco implementation.

I think (and it's just my opinion) that you should either choose to use
802.11af kit throughout (which is expensive) or use "roll your
own", but
never, ever, mix the two..

I don't think "real" PoE kit will take too kindly to finding the
wrong
voltages or capacitance/resistance behaviour appearing on the wire :

Ian

-----Original Message-----
From: Andy Laurence [mailto:andy@xxxxxxx]
Sent: 22 January 2004 12:46
To: ukha_d@yahoogroups.com
Subject: RE: [ukha_d] Power over the Ethernet

From: Pankaj Dhokia [mailto:pankaj@xxxxxxx]

> Is this just the same as running power down a pair of Cat5(e)?

Essentially, yes.



Cheers,

Andy

--

http://projects.andylaurence.co.uk




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