CHAPTER 3 INSTALLATION PROCEDURE
1. PRECAUTIONS
1.1Grounding Requirements
The system grounding must have a specific ground resistance and AC noise level, and is to be connected to a pre- determined terminal in the PBX. Standard grounding requirements are as follows:
•Communication grounding: Less than 10 ohm
•Protective ground for PIM: Less than 10 ohm
Note: The AC ripple on these various grounds should be less than 0.5
CAUTION: Grounding circuit continuity is vital for safe operation of telecommunication equipment. Never operate this equipment with the grounding conductor disconnected.
NDA-24219 CHAPTER 3
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Revision 2.0