Are 300 Series switches compatible with pre-standard PoE detection in old Cisco phones?

[arieldembling]

Are 300 Series switches compatible with pre-standard PoE detection in old Cisco phones? They don't seem to be (a 7902G won't power on when connected to an SF302-08MP with firmware version 1.1). Is any special configuration needed on the switch to enable this detection?

[David Carr]

Arieldembling,

The 300 series switches are 802.3af standard for poe.  The older Cisco phones are powered by inline power which is indeed a different standard and wont work with our switches poe standard.

[Ivor Diedricks · Accepted solution]

Please note that the 200 and 300 Series switches now support Cisco Legacy POE as of September 2011, allowing it to deliver power to 7960, 7940, and other pre-standard phones and APs. Details provided at the following link:

https://supportforums.cisco.com/docs/DOC-18337