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2.2 Installation of the Hybrid IP-PBX
Installation Manual 67
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 CO line.
Installation of a Grounding Rod
CSSLT PT
(Main Building)
CO Line
CO Line
Extn.
Extn.
Extn.: Extension Line
Ground
(Another Building)
Extn.
Extn.
Surge Protector
Terminal
Board
Surge
Protector
SLT
PT
Hybrid
IP-PBX
CS
CO Line
Hybrid
IP-PBX
Grounding
Wire
Grounding Rod
(Underground)
Surge Protector