Description of the device
4.6 Power over Ethernet (PoE)
Extender for SCALANCE XM-400
32
Operating Instructions, 09/2018, C79000-G8976-C332-08
Power supply and pin assignment
The voltage is transferred on the data wires 1, 2, 3 and 6 of the Ethernet cable.
With the RJ-45 plug, the pin pairs 1/2 are used for the negative and 3/6 for the positive
power supply.
Figure 4-1
RJ-45 jack
Pin number
Assignment
Pin 8
-
Pin 7
-
Pin 6
positive power supply
Pin 5
-
Pin 4
-
Pin 3
positive power supply
Pin 2
negative power supply
Pin 1
negative power supply