How is PoE power distributed on the 2650-PWR?
The 2650-PWR uses two separate PoE controllers: one for ports 1-24 and a second for ports 25-48. Each controller requires a minimum of 38 watts of power to operate (and this power is available to be provided to the ports). Power is dynamically allocated to either controller. With its internal 406 Watt 50V power supply, the 2650-PWR has 406-38 = 368 watts available to either controller (since 38 watt is always reserved for the other controller). This means that if you connect PoE devices only to ports 1-24, you would have 368/24 ports = 15.3 watts average per port. If you only connected 2 devices to ports 1 & 2, then the remaining power (368w) would be available to the controller for ports 25-48.
