RJ45 jack pin numbers

pin 1 = power return
pin 2 = 5V regulated
Pin 3 = power return
pin 4 = DQ (data)
pin 5 = 1 wire return (GND)
pin 6 = unconnected
pin 7 = unregulated 12v
pin 8 = power return

See below for RJ45 numbering and the above pin assignment in pictorial form.