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Power distribution cabinet grounding
Connect the power distribution cabinet to the grounding stake, which is connected to
the grounding network through the grounding inlead cable.
Figure A-2
Figure A-2 Central Office Cabinet Grounding - Type 2
A.2.2 Remote Office Cabinet Grounding
The process of connecting the remote office cabinet to the grounding network is as follows:
1. Connect the GND, GNDP, -48 VGND, cabinet, and the power supply system to the
grounding copper bar of the cabinet. Use multi-copper wire (≥ 95 mm
grounding copper bar to the grounding stake.
2. Connect the distribution frame protection ground to the grounding stake.
3. If the power distribution panel is located on the grounding floor, directly connect the
protection ground to the grounding network.
4. If the power distribution panel is located anywhere other than the ground floor, connect
the corresponding protection ground to the grounding stake.
5. Connect the grounding stake to the grounding network through the grounding inlead
cable.
Figure A-3
SJ-20110909101511-005|2011-12-31 (R1.1)
Appendix A Indoor Cabinet Grounding System Connection
shows central office cabinet grounding (Type 2).
shows remote office cabinet grounding.
A-3
ZTE Proprietary and Confidential
2
) to connect the
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