PoE capable devices work on 5v, so all the injector does is inject 5v into the unused pairs on the ethernet cable. The transformer comes before the injector, so you're not pushing 120v down the ethernet. Amperage is somewhere around 2-3 amps, so it's really not much power at all. The D-Link and Linksys kits are really inexpensive. They often pay for themselves just in the effort it would take to get power in hard-to-reach places.
On Tue, 2004-10-12 at 11:06, Brad Bendily wrote: > On Tue, 12 Oct 2004, Tim Sullivan wrote: > > > Has anyone tried the power over Ethernet before? I am thinking of doing this > > with my linksys AP. It looks cool but I am a little hesitant with the power > > next to the data lines. I don't know how the EMF would affect the data. Or > > is it only AC lines that can corrupt data. > > We're using POE to over 60 access points and a few other devices. As best > we can tell it works great. Also, it's really helpful since it's hard > enough to get data to a ceiling tile, much less get power there. With > POE you only need one wire! > > I don't know any of the specs, but I'm sure it wouldn't be available if > there were major problems with power being next to the data. Plus i'm > sure it's not a full 110w. But I don't know what the exact power draw is. > > BB > > > _______________________________________________ > General mailing list > [email protected] > http://brlug.net/mailman/listinfo/general_brlug.net
