2.2.10 Surge Protector Installation - Panasonic KX-TDA50 Installation Manual

2.2 Installation of the Hybrid IP-PBX

2.2.10 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 earthing 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
Earth
58 Installation Manual
CO Line
Surge
Protector
Extn. Extn. Extn.
SLT
CO Line
Terminal
Board
Extn.
PT CS
Extn.: Extension line
Hybrid
IP-PBX
Frame
Ground