Panasonic KX-TDA30

6.2 Installation of the Hybrid IP-PBX — KX-TDA30
Installation Manual 279
Outside Installation
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 lightning protector for an extension and CS is different from that for trunks.
Installation of an Earth Rod
1. Installation location of the earth rod.....Near the protector
CSSLT PT
(Main Building)
Trunk
Trunk
Extn.
Extn.
Extn.: Extension Line
Earth
(Another Building)
Extn.
Extn.
Lightning Protectors
Terminal
Board
Lightning
Protector
SLT
PT
Hybrid
IP-PBX
CS
Trunk
Hybrid
IP-PBX
Earthing
Wire
Earth Rod
(Underground)
Lightning Protector