Siemens RUGGEDCOM RS920W, Installation Manual, Page: 22 / 44

Chapter 2
Installing the Device
RUGGEDCOM RS920W
Installation Guide
12 Connecting Low DC Power
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Figure 6: Terminal Block Wiring – Dual DC Power Supply Inputs
1. Positive Terminal 2. Negative Terminal 3. Surge Ground Terminal 4. Braided Ground Cable
3. Connect the negative wire from the power source to the negative/neutral (-/N) terminal on the terminal block.
4. Connect the ground wire from the power source to the chassis groun terminal on the terminal block.
Section 2.6.2
Connecting Low DC Power
RUGGEDCOM RS920W's equipped with 24 or 48 V power supply inputs feature reverse polarity protection and dual
power supply inputs allowing the device to accept redundant connections to a single DC power supply.
To connect a low DC power supply to the device, do the following:
NOTE
Torque all terminal connections to 0.6 N·m (5 lbf-in).
1. Secure the power terminal block to the device.
2. Connect the positive wire from the power source to the positive terminal on the terminal block.