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2.2 Installation of the Hybrid IP-PBX
50 Installation Manual
2.2.11 Lightning Protector Installation
Overview
A lightning protector is a device to be installed on a trunk to prevent a dangerous surge from
entering the building and damaging equipment.
A dangerous surge can occur if a telephone line comes in contact with a power line. Trouble
due to lightning surges has been showing a steady increase with the development of electronic
equipment.
In many countries/areas, there are regulations requiring the installation of lightning protection.
A lightning strike to a telephone cable which is 10 m above ground can be as high as 200 000 V.
The Hybrid IP-PBX should be installed with lightning protectors. In addition, earthing
(connection to earth) is very important for the protection of the Hybrid IP-PBX.
Be sure to comply with applicable local regulations (e.g., law, guidelines).
Recommended Lightning Protectors
• KX-A207
• TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.)
• SPIKE BLOK MODEL SK6-0 (TRIPPE MFG. CO.)
• Krone 237A strips fitted with 14A/1 surge arrestors
• Super MAX™ (PANAMAX)
• MP1 (ITW LINK)
Installation
CS
Trunk Trunk Trunk
Extn.
Extn. Extn.
Extn.: Extension line
Lightning
Protectors
Terminal
Board
Hybrid
IP-PBX
Frame
Earth
SLT
Earth
PT