10-29-2010 06:14 AM - edited 03-06-2019 01:47 PM
Not sure if this is the correct place to post this ?, does anybody know if the 7942G phone is compatible with the WS-C3550 POE switch ?
We are seeing some rather bizarre behaviour with the phones that would suggest an issue.
Regards
Scott.
10-29-2010 07:53 AM
Im using 7940 and 7945's on a 3550 on my desk lab right now. It works great.
Could you elaborate on some of the problems you are having?
This may belong in the voice forums depending on the issue you are having. But we can continue here and if a moderator wishes to move, they can.
10-29-2010 02:31 PM
Hi,
The Catalyst 3550 switch supports only Cisco's proprietry version of power over Ethernet as it was released prior to the IEEE 802.3af PoE standard being ratified.
The 7942G Data Sheet and Q&A does state that the 7942G is compatible with Cisco pre-standard switches so in theory you should be ok.
Data Sheet
Supports IEEE 802.3af PoE (Class 2). Also supports Cisco Prestandard Power over Ethernet (PoE), allowing powering from any of the Cisco Inline Power-capable blades and boxes, plus Cisco midspan. 48VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number CP-PWR-CUBE-3=) or power injector (CP-PWR-INJ=).
Q&A
Power
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide