Siemens RUGGEDCOM RSG920P Installation Manual page 26

Chapter 2
Installing the Device
NOTE
For IEC 61850 compliance, use an IEC 61850 compliant PoE power supply with power cabling no
longer than 3 m (118 in).
Otherwise, Siemens recommends using the RUGGEDCOM RPS1300 switch-mode AC power supply. For
more information about this power supply, refer to
view/109478699.
To support the IEEE 802.3at specification (30 W/port output), the external power supply must meet the following
requirements:
Power Supply Type
DC
To support the IEEE 802.3af specification (15 W/port output), the external power supply must meet the following
requirements:
Power Supply Type
DC
To connect an external power supply for the PoE ports, do the following:
1. Secure a European-style terminal block (or Euroblock) to the terminal.
Figure 13: Terminal Block Wiring
1. PoE Terminal Block 2. Chassis Ground 3. Negative Terminal 4. Positive Terminal
2. Connect the positive wire from the RUGGEDCOM RPS1300 (or another external power supply) to the positive
(+) terminal on the terminal block.
3. Connect the negative wire from the RUGGEDCOM RPS1300 (or another external power supply) to the
negative (-) terminal on the terminal block.
16
Input Range
Minimum Maximum
51 VDC
Input Range
Minimum Maximum
45 VDC
https://support.industry.siemens.com/cs/ww/en/
Isolation
57 VDC 1.5 kVAC/2.2 kVDC
Isolation
57 VDC 1.5 kVAC/2.2 kVDC
1
RUGGEDCOM RSG920P
Installation Guide
Minimum
Power Required
135 W
Minimum
Power Required
75 W
2 3 4
Connecting External PoE Power