Siemens SIMATIC NET Installation Manual page 23

Installing the Device
2.5.1 Connecting AC or DC Power
4.
5.
6.
14
Connect the positive wire from the power source to the positive/live (+/L)
terminal on the terminal block.
1
3
8 4 5
6 7
Screw-Type Terminal Block
1
Pluggable Terminal Block
2
Jumper
3
Positive/Live (+/L) Terminal
4
Negative/Neutral (-/N) Terminal (-/N)
5
Surge Ground Terminal
6
Chassis Ground Terminal
7
Chassis Ground Connection
8
Figure 2.4 Terminal Block Wiring
Connect the negative wire from the power source to the negative/neutral (-/N)
terminal on the terminal block.
Install the supplied metal jumper between terminals 2, 4 and 6 to connect
the surge ground terminals to the chassis ground terminal. The surge ground
terminals are used as the ground conductor for all surge and transient
suppression circuitry internal to the unit.
4 5
6
6 7 6
4 5 4 5
8 3
Installation Manual, 04/2022, C79000-G8976-1342-09
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RUGGEDCOM M2100F