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Installation Manual - Panasonic

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2.2 Installing the Advanced Hybrid SystemOutside <strong>Installation</strong>(Main Building)Outside(CO) LineSurge ProtectorOutside (CO) Line(Another Building)SLTTerminalBoardExtn.PBXExtn.SurgeProtectorPTExtn.Extn.SLTPTEarthIf 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.NoteThe surge protector for an extension is different from that for an outside (CO) line.<strong>Installation</strong> of an Earth RodExtn.: Extension LineOutside(CO) LineSurgeProtectorEarthing WirePBX(Underground)Earth Rod1. Connect the earth rod to the surge protector using an earthing wire with a cross-sectional areaof at least 1.3 mm 2 .40 <strong>Installation</strong> <strong>Manual</strong>

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