Installing Surge Protector - Panasonic KX-TA82492 - Voice Message Expansion Card Installation Manual

2.2 Installing the Advanced Hybrid System
2.2.7

Installing Surge Protector

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 an outside (CO) line to prevent potentially dangerous electrical surges from entering
the building via the outside (CO) lines and damaging the PBX and connected equipment.
To protect the PBX from electrical surges, we strongly recommend connecting the PBX 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 PBX. (→ 2.2.5 Connecting
Frame Ground)
Many countries/areas have regulations requiring surge protection. Be sure to comply with all
applicable laws, regulations, and guidelines.
Installation
Outside
(CO) Line
34 Installation Manual
Outside
(CO) Line
Surge
Protector
Extn.
SLT
Ground
Outside
(CO) Line
Terminal
Extn.
Board
Extn.
PT
Extn.: Extension Line
PBX
Frame Ground