The Power over Ethernet (PoE), IEEE802.3af, is deployed on the EGX100 and EGX300 devices.
The IEEE 802.3af PoE standard (ratified June, 2003) provides up to 15.4 W of DC power at 44~57 V DC (though the nominal voltage is 48 V) and 10~350 mA to each device.
Only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable.
There is another new version for PoE, IEEE802.3at-2009, sometimes called "POE+", (ratified September 11, 2009), provides up to 25 W of power. Except the Power Output, the voltage and current output are the same as IEE 802.3af. As of 7/1/2015 the EGX only supports IEEE802.3af.