4.2.4 Frame Earth Connection
KX-NS300/KX-NS320
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
67
4.2.4 Frame Earth Connection
Summary of Contents for KX-NS300
Page 92: ...4 Hook the main unit on the screw heads 92 Installation Manual 4 2 10 Wall Mounting...
Page 150: ...150 Installation Manual 4 13 Starting the KX NS300...
Page 248: ...248 Installation Manual 5 11 Automatic Configuration of Mailboxes...
Page 252: ...252 Installation Manual 6 1 Methods of Stacking Expansion Units...
Page 294: ...294 Installation Manual 8 5 Port Security...
Page 298: ...298 Installation Manual 9 2 System Prompt Languages...
Page 299: ......