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JPS5348407A - Invasion protective circuit for abnormal voltage of wire communication equipment - Google Patents

Invasion protective circuit for abnormal voltage of wire communication equipment

Info

Publication number
JPS5348407A
JPS5348407A JP12275776A JP12275776A JPS5348407A JP S5348407 A JPS5348407 A JP S5348407A JP 12275776 A JP12275776 A JP 12275776A JP 12275776 A JP12275776 A JP 12275776A JP S5348407 A JPS5348407 A JP S5348407A
Authority
JP
Japan
Prior art keywords
protective circuit
communication equipment
wire communication
abnormal voltage
invasion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12275776A
Other languages
Japanese (ja)
Inventor
Yutaka Fukushima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12275776A priority Critical patent/JPS5348407A/en
Publication of JPS5348407A publication Critical patent/JPS5348407A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: Switching circuits are combined via proper impedance elements to absorb the nearly all energy of an overvoltage, thereby making it possible to operate a protective circuit precisely and at a high speed.
COPYRIGHT: (C)1978,JPO&Japio
JP12275776A 1976-10-15 1976-10-15 Invasion protective circuit for abnormal voltage of wire communication equipment Pending JPS5348407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12275776A JPS5348407A (en) 1976-10-15 1976-10-15 Invasion protective circuit for abnormal voltage of wire communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12275776A JPS5348407A (en) 1976-10-15 1976-10-15 Invasion protective circuit for abnormal voltage of wire communication equipment

Publications (1)

Publication Number Publication Date
JPS5348407A true JPS5348407A (en) 1978-05-01

Family

ID=14843849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12275776A Pending JPS5348407A (en) 1976-10-15 1976-10-15 Invasion protective circuit for abnormal voltage of wire communication equipment

Country Status (1)

Country Link
JP (1) JPS5348407A (en)

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