Panasonic KX-TD816 Installation Manual page 74

2.3.11 Installation of Lightning Protectors
Outside Installation
CO
Notice
Note
2-42 Installation
(Main Building)
Protectors
CO
CO
Ter-
minal
Board
EXTN
EXTN
EXTN
TEL TEL
If you install an extension outside of the main building, the following
precautions are recommended:
(1) Install the extension wire underground.
(2) Use a conduit to protect the wire.
The lightning protector for an extension is different from that for CO.
Main EXTN
Unit
Lightning
Protector
Ground
(Another Building)
SLT
PT