Panasonic KX-TEM824 User Manual

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2.2 Installing the Advanced Hybrid System
30
Installation Manual
2.2.5
Connecting Frame Earth
IMPORTANT
Connect the frame of the PBX to earth.
 
Be sure to comply with all applicable laws, regulations, and guidelines.
Proper earthing is very important to protect the PBX from external noise and to reduce the risk 
of electrocution in the event of a lightning strike.
The AC cable's earthing pin may not be enough to protect the PBX from external noise and 
lightning strikes. A permanent connection must be made between earth and the earth terminal 
of the main unit.
1.
Loosen the screw.
2.
Insert an earthing wire (user-supplied)*.
3.
Tighten the screw.
4.
Connect the earthing wire to earth.
* Use an earthing wire that has a conductor with a cross-sectional area of at least 0.75 mm
2
 or 18 
AWG. Green-and-yellow insulation is required.
Screw
To earth
Earthing wire