[Asterisk-biz] PoE for Cisco Phones

[Greg Boehnlein]

On Sat, 5 Feb 2005, Kevin P. Fleming wrote:

> > 802.3af power to power for Cisco phones? Anythings else that provided
> > Cisco style POE for a small number of phones? And no, I am not interested
> > in a solution that costs more than the phones did, my aim is $25 per
> > phone to provide power...
> 
> We use 3Com NJPSE (or the generic Ault equivalent), which is a dumb 
> power injector, along with the cross-over adapter cable which is 
> documented on the wiki. The 3Com units are generally available for under 
> $25... we have bought some of the generic ones for under $20.

I started out with (and documented) the Cisco POE cable on the Wiki. It 
should work with any "dumb" POE injector. I.E. something that doesn't care 
about 802.3af and just injects 48dc down the line no matter what.

I've since deployed the PowerDsine POE injector with their Cisco adapter 
cables. It understands both 802.3af as well as the CDP power protocol 
(with the right adapter cables).

Check out:
http://voipstore.atacomm.com/shops/ViewItem.aspx/27934028032-29904448768.htm

And then you can add the following adapter cable for each phone PD-PS-401-5/CSCS

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