Powering ePMP 4500/4600 with 2-pair PoE?

Can you power the ePMP 4500/4600 using 2-pair 48v 1amp PoE if the cable run is under 30ft?

I had a 4600 AP powered via 2 pair 48v poe for a few months (from a netonix switch). No problems at all. The cable run was probably 30~40’