Siemens SIMATIC NET RUGGEDCOM RS400F Installation Manual page 25

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Installing the Device
2.6.2 Connecting DC Power
2.
3.
4.
16
Connect the negative wire from the power source to the negative/neutral (-/N)
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.
Connect the ground terminal on the power source to the chassis ground
terminal on the device. For more information, refer to
Device" (Page
13).
"Grounding the
RUGGEDCOM RS400F
Installation Manual, 11/2022, C79000-G8976-1341-06

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