Will this older POE switch power my Polycomm phones?

stanleyarimah1076 · 2013-12-02T21:46:35.000Z

Hey guys, at our branch in another city there is a 3COM 4400 PWR (3c17205) POE switch in the office. The whole company is are moving to LYNC as its IP-PBX. I’ve ordered the Polycom CX600 for both branches and am wondering if that switch will be able to supply enough power for 25 phones? I heard that there are different classes of power and I’m having a hard time figuring out what classes that switch supports. Thanks for your time.

NetworkNerd · 2013-12-02T21:58:21.000Z

It all depends on whether the switch will support the PoE class which is also supported by the phones. Here’s a doc on powered device classification and power classification: http://support.polycom.com/global/documents/support/technical/products/voice/Power_Consumption_TB_48152.pdf.

Cross reference that with the specs on the switch to see what is supported on a per-port basis.

nathanparks · 2013-12-02T22:33:18.000Z

It should VoIP phone power consumption is pretty low.

Jared-Busch · 2013-12-03T02:25:41.000Z

The phone you specified is class 2 and has a max power draw of 4.9 watts using the link NN gave us. so from there it is simple math to make sure you do no exceed the max power for the switch. I do not know of any PoE switch that cannot handle 4.9 watts per port.

georgebardissi0515 · 2013-12-03T13:11:43.000Z

That will work fine.

stanleyarimah1076 · 2013-12-06T16:17:27.000Z

OK guys thanks for the info.