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Connecting up
6.3 PoE power supply of the PE408PoE
Information on the PoE power supply
● You can connect a different PoE power supply to each of the two connectors, see e.g.
section "Accessories (Page 26)".
● Devices capable of PoE can be supplied with power via the ports, see section "Power
over Ethernet (PoE) (Page 30)".
● For the PE408PoE to be able to supply a powered device, the connected PoE power
supply must provide an output voltage of 54 V.
● The power supply is connected using two 2-pin plug-in terminal blocks (spring-loaded
terminal). The terminal blocks ship with the device.
● The terminal block L1+/M1 provides the PoE power supply of ports P1 to P4. The
terminal block L2+/M2 provides the PoE power supply of ports P5 to P8.
● To wire up the power connector, use a copper cable of category 18-12 AWG or cable with
a cross-section of 0.75 to 2.5 mm².
● The cable for connecting the power source to the connectors L1+/M1 or L2+/M2 can be a
maximum of 3 m long.
Position and assignment
Figure 6-1
Contact
L1+
M1
L2+
M2
44
Position of the PoE power supply on the PE408PoE and the assignment of the terminal
blocks
Assignment
L1+ 54 VDC
Ground
L2+ 54 VDC
Ground
Extender for SCALANCE XM-400
Operating Instructions, 09/2018, C79000-G8976-C332-08
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