Panasonic KX-TDA100

Outside Installation
Trunk
Extn.
Trunk
Surge Protector
Terminal
Board
Surge
Protector
PBX
(Main Building)
(Another Building)
Extn.: Extension Line
Extn.
Extn.
Earth
Extn.
SLT
PT
PT-interface CS
CS
CS
SLT
PT
PT-interface CS
If you install an extension outside of the building, the following precautions are recommended:
a. Install the extension wire underground.
b. Use a conduit to protect the wire.
Note
The surge protector for an extension and CS is different from that for a trunk.
Installation of an Earth Rod
Trunk
PBX
Earthing
Wire
Earth Rod
(Underground)
Surge Protector
72 Installation Manual
2.2.14 Surge Protector Installation