2.3
Connection
64
General Installation
2.3.9
Installation of Lightning Protectors
Overview
A lightning protector is a device to be installed on an outside line 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, there are regulations requiring the installation of a lightning protector. A
lightning strike to a telephone cable which is 10 m above ground can be as high as 200,000
volts.
This system should be installed with lightning protectors. In addition, grounding (connection
to earth ground) is very important for the protection of the system.
Installation Diagram
TEL
Lightning
Protectors
CO
Terminal
Board
CO
System
Ground
Terminal
CO
EXTN
EXTN
Ground
EXTN
TEL
Frame Ground
CO: Central Office (Outside line)
EXTN: Extension line
TEL: Telephone
Summary of Contents for KX-TD1232NL
Page 12: ...12 Table of Contents ...
Page 13: ...System Outline 13 Section 1 System Outline ...
Page 31: ...General Installation 31 Section 2 General Installation ...
Page 60: ...2 3 Connection 60 GeneralInstallation Features Guide References Background Music BGM ...
Page 114: ...2 9 System Data Clear 114 GeneralInstallation ...
Page 115: ...ISDN Installation 115 Section 3 ISDN Installation ...
Page 127: ...E M Installation 127 Section 4 E M Installation ...
Page 140: ...4 2 E M TIE Line Installation 140 E M Installation ...
Page 141: ...DECT Installation 141 Section 5 DECT Installation ...
Page 170: ...5 2 Wireless System Installation 170 DECT Installation ...
Page 171: ...Troubleshooting 171 Section 6 Troubleshooting ...
Page 178: ...6 1 Troubleshooting 178 Troubleshooting ...
Page 179: ...Index 179 Section 7 INDEX ...
Page 182: ...Index 182 ...