Panasonic KX-TA82492 - Voice Message Expansion Card Installation Manual page 35

Outside Installation
Outside
Surge Protector
(CO) Line
Extn.
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 is different from that for an outside (CO) line.
Installation of a Ground Rod
Outside
(CO) Line
Grounding Wire
(Underground)
1.
Connect the ground rod to the surge protector using a grounding wire with a cross-sectional area
of at least 16 AWG.
(Main Building)
Outside (CO) Line
Terminal
PBX
Board
Extn.
Extn.
SLT PT
Surge
Protector
Ground Rod
2.2 Installing the Advanced Hybrid System
(Another Building)
Extn.
Surge
Protector
Ground
Extn.: Extension Line
PBX
SLT
PT
Installation Manual 35