4.2.4 Frame Earth Connection
KX-NS500/KX-NS520
1.
Loosen the screw.
2.
Insert an earthing wire (user-supplied).
3.
Tighten the screw.
4.
Connect the earthing wire to earth.
To earth
Screw
Earthing wire
WARNING
•
Proper earthing (connection to earth) is very important to reduce the risk to the user of
electrocution or to protect the PBX from the bad effects of external noise in the case of a
lightning strike.
•
The earthing wire of the AC cable has an effect against external noise and lightning strikes, but
it may not be enough to protect the PBX and to ensure electromagnetic compatibility. A
permanent connection between earth and the earth terminal of the PBX must be made.
CAUTION
For earthing wire, green-and-yellow insulation is required, and the cross-sectional area of the conductor
must be more than 0.75 mm
2
or 18 AWG.
Notice
Be sure to comply with applicable local regulations (e.g., laws, guidelines).
Installation Manual
89
4.2.4 Frame Earth Connection
Summary of Contents for KX-NS500
Page 16: ...16 Installation Manual Table of Contents ...
Page 28: ...28 Installation Manual 1 4 Data Security ...
Page 58: ...58 Installation Manual 2 3 3 System Capacity ...
Page 78: ...78 Installation Manual 3 1 3 Using CTI Applications ...
Page 114: ...4 Hook the main unit on the screw heads 114 Installation Manual 4 2 10 Wall Mounting ...
Page 286: ...286 Installation Manual 6 1 Methods of Stacking Expansion Units ...
Page 300: ...300 Installation Manual 7 1 6 Troubleshooting by Error Log ...
Page 332: ...332 Installation Manual 8 6 Port Security ...
Page 337: ...Installation Manual 337 Notes ...