Siemens SIMATIC NET RUGGEDCOM RSG920P Equipment Manual page 28

To support the IEEE 802.3af specification (15 W/port output), the external power
supply must meet the following requirements:
To connect an external power supply for the PoE ports, do the following:
1.
2.
3.
4.
RUGGEDCOM RSG920P
Equipment Manual, 10/2023, C79000-G8976-1172-09
Power
Supply Type
Minimum
DC 45 VDC
Secure a European-style terminal block (or Euroblock) to the terminal.
PoE Terminal Block
1
Chassis Ground
2
Negative Terminal
3
Positive Terminal
4
Figure 2.12 Terminal Block Wiring
Connect the positive wire from the RUGGEDCOM RPS1300 (or another external
power supply) to the positive (+) terminal on the terminal block.
Connect the negative wire from the RUGGEDCOM RPS1300 (or another external
power supply) to the negative (-) terminal on the terminal block.
If using an external power supply other than the RUGGEDCOM RPS1300 that has
a chassis ground connection, connect the ground terminal on the power supply
to the chassis ground terminal on the device.
2.7.3 Connecting External PoE Power
Input Range
Maximum
57 VDC
1
Installing the Device
Isolation Minimum
Power Required
1.5 kVAC/2.2 kVDC
2 3 4
75 W
19