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6.4
Connecting functional ground
Grounding options
Grounding (functional ground) is via the mounting bracket on the device or via the bolts on the
rear of the device.
Position
The connector for the grounding cable is in the center of the rear panel of the device, see section
"Dimension drawings (Page 75)".
Grounding is via a screw-in or a pressed in grounding bolt, see section "Product overview
(Page 19)".
Fitting screw in grounding bolts
1
2
①
Toothed washer
②
Grounding bolt
To fit the screw-in grounding bolts, follow the steps below:
1. Thread the toothed washer
①
onto the bolt.
2. Screw in the grounding bolt
②
with a maximum tightening torque of 2 Nm.
Connecting up functional ground
Screw-in grounding bolts
Pressed in grounding bolts
6
5
4
3
6
5
4
3
③
Grounding terminal with cable
Connecting up
6.4 Connecting functional ground
SCALANCE XR-300M PoE
Compact Operating Instructions, 03/2022, A5E02661178-15
51