We have some Aastra 9480i phones that are 802.3 af running off of a cisco 3550 that are Pre-Standard power. http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps646/prod_qas091... "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." I used the command power inline delay shutdown 20 initial 100 on the ports connected to the phones and it seems to be working just fine. It may just be a lucky break for us but something worth trying? -=Tom On Fri, 31 Dec 2010 09:00:40 -0600, Robert E. Seastrom <rs@seastrom.com> wrote:
Perhaps someone from this august list can offer a clue here.
Have: Cisco 3524-PWR (paleo-POE, pre-802.3af Cisco standard).
It runs the 7960Gs great.
Have: Wireless AP stuff that wants 12v on the unused pairs for passive POE. 48v will let the magic smoke out.
Might buy: phone that does 802.3af
Want to run these with the 3524-PWR.
I can't imagine that nobody makes a bump-in-the-wire converter for this application, but haven't been able to find anything other than 802.3af to the passive POE use case.
Anyone got a pointer for me?
Thanks,
-r
-- Using Opera's revolutionary email client: http://www.opera.com/mail/