3.2 Installation of the PBX
3.2.14 Surge Protector Installation
Overview
A massive electrical surge can be caused if lightning strikes a telephone cable 10 m 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 trunk to prevent potentially dangerous electrical surges from entering the building via the trunk and damaging the 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:
–DC
–Maximum peak current: at least 10 kA
Additionally, proper earthing is very important for the protection of the system (refer to "3.2.5 Frame Earth Connection").
Many countries/areas have regulations requiring surge protection. Be sure to comply with all applicable laws, regulations, and guidelines.
Installation
Trunk
Surge
Protector
Trunk
Terminal
Board
Trunk
Extn.
PBX
Extn. |
|
SLT |
|
PT | CS |
Frame
Earth
Earth | Extn.: Extension line |
|
Installation Manual
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