Panasonic KX-TDA50 installation manual Surge Protector Installation, Overview

2.2 Installation of the Hybrid IP-PBX

2.2.11 Surge Protector Installation

Overview

A massive electrical surge can be caused if lightning strikes a telephone cable 10 m (33 ft) above ground, or if a telephone line comes into contact with a power line. A surge protector is a device that is connected to a CO line to prevent potentially dangerous electrical surges from entering the building via the CO line and damaging the Hybrid IP-PBX and connected equipment.

To protect the system from electrical surges, we strongly recommend connecting the system to a surge protector that meets the following specifications:

•Surge arrestor type: 3-electrode arrestor

•DC spark-over voltage: 230 V

•Maximum peak current: at least 10 kA

Additionally, proper grounding is very important for the protection of the system (refer to "2.2.5 Frame Ground Connection").

Many countries/areas have regulations requiring surge protection. Be sure to comply with all applicable laws, regulations, and guidelines.

Installation

CO Line

Surge

Protector

CO Line

Terminal

Board

Extn. Extn. Extn.

CO Line

Extn.

Hybrid

IP-PBX

SLT

PT

CS

Frame Ground

Ground Extn.: Extension line

Installation Manual

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