User's Manual

Page 52 of 332 Chapter 3 — System and site requirements
553-3021-209 Standard 3.00 April 2000
You can use any of the following busbars as a system SPG:
• building principal ground, normally in building with one floor
• floor ground bar, normally in buildings with more than one floor
• dedicated SPG bar bonded to the building grounding system
• a section of the battery return bar of the power plant
You can configure subsystems of a telecommunications system, such as
groups of frames or equipment, as separate single point ground entities
connected in a star configuration to the system SPG.
Figure 6
Single point grounding
Various Communication Subsystems
SPG
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