D-Link KX-TDA100 User Manual Page 69

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2.2 Installation of the Hybrid IP-PBX
Installation Manual 69
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 surge protector for an extension and CS is different from that for a trunk.
Installation of an Earth Rod
CSSLT PT
(Main Building)
Trunk
Trunk
Extn.
Extn.
Extn.: Extension Line
Earth
(Another Building)
Extn.
Extn.
Surge Protector
Terminal
Board
Surge
Protector
SLT
PT
Hybrid
IP-PBX
CS
Trunk
Hybrid
IP-PBX
Earthing
Wire
Earth Rod
(Underground)
Surge Protector
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