Wiring Examples - Siemens SIMATIC NET RUGGEDCOM RST2228P Installation Manual

Installing the Device
2.5.4 Wiring Examples
To support the IEEE 802.3af specification (15 W/port output), the external power
supply must meet the following requirements:
a
Based on a single 4-port module.
To connect an external power supply for the PoE ports, do the following:
1.
2.
3.
2.5.4

Wiring Examples

The following illustrate how to connect single and dual power supplies to the device.
22
Power
Supply Type
Minimum
DC 45 VDC
Secure a European-style terminal block (or Euroblock) to the terminal.
1
3 4
Pluggable Terminal Block
1
Screw-Type Terminal Block
2
Positive (+) Terminal for PoE
3
Negative (-) Terminal for PoE
4
Figure 2.14 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.
Input Range
Maximum
57 VDC
2
Isolation Minimum
Power Required
1.5 kVAC/2.2 kVDC
3
4
RUGGEDCOM RST2228P
Installation Manual, 07/2021, C79000-G8976-1403-13
a
72 W