Lightning Protectors - Panasonic KX-TD500 Installation Manual

2.11

Lightning Protectors

Outside Installation
CO
EXTN
TEL
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.
2-78 Installation
(Main Building)
Protectors
CO
CO
Ter-
Main
minal
Unit
Board
EXTN
EXTN
TEL
(Another Building)
SLT
EXTN
PT
Lightning
Protector
Ground