PURE M3700 Installationshandbuch Seite 127

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Outside Installation
(Main Building)
CO Line
CO Line
Extn.
Extn.
Extn.: Extension Line
Ground
Extn.
Surge Protector
Surge
Protector
PBX
Extn.
SLT
PT
PT-interface CS
CS
Terminal
Board
(Another Building)
CS
SLT
PT
PT-interface CS
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 CO lines.
Installation of a Grounding Rod
CO Line
PBX
Grounding
Wire
Grounding Rod
(Underground)
Surge Protector
Document Version 2009-12 Installation Manual 127
3.2.16 Surge Protector Installation
Seitenansicht 126
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