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I have a draytek P2260 poe switch which can provide up to 15.4 watt of power to devices like IP phones. This switch is a 24-ports 802.3af PoE PSE However Cisco Aironet AP require 18.5 watts and at the moment they are powered through an injector.

Just out of curiosity, how possible is it to combine the power of 2 ports to reach 18.5 Watt ?

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I seriously doubt this is possible. – SpacemanSpiff Oct 4 '12 at 14:36
There are some small switches with PoE+, even 30W per port. – Matías Mar 11 '15 at 14:49
I just got a PoE+ capable switch by my 1252 ap still complains of reduced power input.... did you manage to get yours working properly? – Matías Mar 23 '15 at 15:59
up vote 3 down vote accepted

Not going to happen.

Keep the current setup with the injector or try a switch that can provide more PoE wattage (PoE+) to individual ports.

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