Catalyst 3550 POE issue with 3com 3102 Phones (please help)

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May 11th, 2009
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We have a Catalyst 3550 with 6 3Com 3102 POE phones attached to it without being able to be powered on using POE. According to 3Com, the 3102 models work under a different voltage than the Cisco phones but the 3550's should be able to pick up the voltage automaticaly. My question is: Is there a way to set the voltage to the POE ports or is there another way we can resolve this issue without having to plug power adapters to the phones? Thank you.

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mparzynski Mon, 05/11/2009 - 10:32
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The below is an excerpt from the Q&A on the 3550. The 3550 only provides Cisco proprietary POE. You will have to upgrade to a 3560 or use another power source.



Q. Does the Cisco Catalyst 3550-24 PWR Switch support the 802.3af inline power standard?

A. No, this switch supports Cisco Pre-Standard Power over Ethernet. The Catalyst 3750 Series and Catalyst 3560 Series support the Cisco Pre-Standard Power over Ethernet and IEEE 802.3af Power over Ethernet.

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