Panasonic KX-TD500 - [000] Date and Time Set

2.11 Lightning Protectors
2-78 Installation
Outside Installation
(Main Building)
If you install an extension outside of the main building, the following precautions are recom-
mended:
(1) Install the extension wire underground.
(2) Use a conduit to protect the wire.
[Note]
• The lightning protector for an extension is different from that for CO lines.
CO
CO
CO
EXTN
EXTN
Ground
(Another Building)
EXTN EXTN
TEL
TEL
Protectors
Ter-
minal
Board
Main
Unit
Lightning
Protector
SLT
PT