cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
346
Views
5
Helpful
3
Replies

POE with non Cisco Phones

gavin.jones
Level 1
Level 1

Hi,

I have a 6509 that will be used to power many non Cisco Phones. My concern are the power supplies in the unit. I based my calculations on the actual power draw of the phones (4.4W). The supplies are fine for this, my question is whether the 6509 makes it power calculations from what is actually being used or whether it uses the allocated power. As the phones will not use CDP, they will register as Class 2 POE(802.3af)7W, therefore the power supplies are not big enough. If it does use the allocated power for the calculation, is there any way of limiting this?

Many Thanks

3 Replies 3

Collin Clark
VIP Alumni
VIP Alumni

You can restrict the power consumption (at least on a 3560).

NORSW03(config-if)#power inline consumption ?

<4000-15400> milli-watts

Hope that helps.

Colin,

Sorry for the delay i have been out of the office.

The command is slightly different on the 6500:

CROOM.SW.10.1(config-if)#power inline static max ?

<4000-7000> milli-watts

Do you think that this will overcome the potential over subscription of the power, by telling the 6500 it must only supply 4.4W of power to each port?

Many Thanks.

I was told by an experienced VoIP CCIE that that command will do exactly that, restrict the power to the port.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Innovations in Cisco Full Stack Observability - A new webinar from Cisco