Siemens RUGGEDCOM RX1500 Installation Manual page 24

Chapter 2
Installing the Device
Figure 10: DC Terminal Block Wiring – Screw-Type Terminal Block for 12, 24 and 48 Power Supplies
1. 5-Position Terminal Block 2. 3-Position Terminal Block 3. Positive (+) Terminal 4. Negative (-) Terminal 5. Ground Terminal
2. Connect the positive wire from the power source to the positive (+) terminal on the terminal block.
3. Connect the negative wire from the power source to the negative (-) terminal on the terminal block.
4. Using a braided wire or other appropriate grounding wire, connect the ground terminal to the chassis
ground connection. The surge ground terminal is used as the ground conductor for all surge and transient
suppression circuitry internal to the unit.
5. Using a #10 ring lug and #10-32 screw, secure the ground terminal on the power source to the chassis
ground terminal on the device. Make sure the lug is tightened to 3.4 N·m (30 lbf·in).
Figure 11: Chassis Ground Connection
1. #10-32 Screw 2. #10 Ring Lug
6. Install the safety cover over the terminal block. This is mandatory for 48 VDC power supplies.
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Connecting Low DC Power
RUGGEDCOM RX1500
Installation Guide