User Guide

52
4.2.7 Grounding
The best way to protect your PABX is to install a BUZ bar . The power neutral, the
PABX case, the power supply protection, the trunk and extension protection and the
ground wire of any other equipment connected to the PABX as per the below figure.
If the bar is not available, all equipment grounding should be interconnected to
protect your equipment, see figure B .
Observation
: grounding max resistance = 5
Ω
.
FIGURE A A
FIGURE B