See our list of popular PoE devices for voltage specs here
Only the WiFi-Texas PoE calculator calculates total power including the effects of voltage drop and line loss.
Our Calculator will give a warning if the link is too long At long distances, the result is unstable and cannot be solved we will suggest minimum voltages for the length entered
If you have more than one device per endpointchange the value in line F
Chinese CCA cat-5 uses 28 awg on the power pairs @ 101 ohms
one CAT-5e spec
Ohms per 100 ft at different temperatures