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2-10
Installation
2.3.2 Outside Line Connection
Installing Lightning Protectors
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 (33 feet) 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.
Recommended lightning protectors
• TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.)
• SPIKE BLOK MODEL SK6-0 (TRIPPE MFG. CO.)
• Super MAX™ (PANAMAX)
• MP1 (ITW LINK)
Installation
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
Содержание KX-TD308
Страница 20: ......
Страница 244: ...Section 4 System Programming This section provides step by step programming instructions for a proprietary telephone...
Страница 396: ...Section 5 List This section lists the tone ring tone and default values of system programming...
Страница 403: ...Section 6 Troubleshooting This section provides information for system and telephone troubleshooting...