For Polycom IP500/501's and IP300/301's you need a special polycom POE cable.
When you buy Polycom phones you can usually specify POE or powerpack. PaulH On Sun, 2006-03-05 at 16:23 -0800, William M Conlon wrote: > When I bought two Polycom 501 SIP phones, I naively thought they were > Power-over-Ethernet (IEEE 802.3af) because they were "powered over > ethernet." Silly me. > > Polycom must have some odd voltage or funny way of injecting the > power, because the POE switch I bought for them (Netgear [EMAIL PROTECTED]) > won't power them, though if I use the Polycom-supplied AC adapter and > ethernet power injector cable, they work with the switch in either > its powered or unpowered ports. > > Anyhow, I hadn't seen any mention of how people power these phones, > as I had planned on centralizing phone power on a UPS to supply my > Asterisk server and POE switch. Now the question is: > > Can the Polycom AC-powered injector be used with a standard ethernet > patch cable: > > switch :: Polycom injector cable :: RJ45 coupler :: patch cable :: > Polycom 501 > > which would allow me to power the Polycom AC adapters by my UPS. Or > do I need to provide a UPS at each phone and run the ethernet like > > switch :: patch cable :: RJ45 coupler :: Polycom injector cable :: > Polycom 501 > > thanks. > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > Asterisk-Users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users