2.5.2 Connecting Low Dc Power - Siemens SIMATIC NET RUGGEDCOM RS900GF Installation Manual

2.5.2 Connecting Low DC Power
To connect a power source to the low DC power supply, do the following:
Electrical hazard – risk of damage to equipment
Before testing the dielectric strength (HIPOT) in the field, remove the braided
ground cable connected to the surge ground terminal and chassis ground. This cable
connects transient suppression circuitry to chassis ground and must be removed to
avoid damage to transient suppression circuitry during testing.
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RUGGEDCOM RS900GF
Installation Manual, 01/2021, C79000-G8976-1352-05
NOTICE
Secure a European-style terminal block (or Euroblock) to one of the available
terminals.
Connect the positive wire from the power source to the positive terminal on the
terminal block.
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Positive Terminal
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Negative Terminal
2
Surge Ground Terminal
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Braided Ground Cable
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Figure 2.7 Terminal Block Wiring – Single DC Power Supply Inputs
Connect the negative wire from the power source to the negative terminal on
the terminal block.
Using a braided wire or other appropriate grounding wire, connect the surge
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.
Installing the Device
2.5.2 Connecting Low DC Power
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