JPS5378709A - Fault monitoring system - Google Patents

Fault monitoring system

Info

Publication number
JPS5378709A
JPS5378709A JP15419276A JP15419276A JPS5378709A JP S5378709 A JPS5378709 A JP S5378709A JP 15419276 A JP15419276 A JP 15419276A JP 15419276 A JP15419276 A JP 15419276A JP S5378709 A JPS5378709 A JP S5378709A
Authority
JP
Japan
Prior art keywords
monitoring system
fault monitoring
fault
inpuiry
repeater
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.)
Granted
Application number
JP15419276A
Other languages
Japanese (ja)
Other versions
JPS575376B2 (en
Inventor
Norio Yoshikubo
Kenichi Atsunushi
Isamu Kishi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15419276A priority Critical patent/JPS5378709A/en
Publication of JPS5378709A publication Critical patent/JPS5378709A/en
Publication of JPS575376B2 publication Critical patent/JPS575376B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To eliminate use of any intermediate line by using plural number of the fault inpuiry current for the coaxial trunking system, and thus to secure a decision of the fault state of a repeater, etc. and thus to simplify the facilities.
JP15419276A 1976-12-23 1976-12-23 Fault monitoring system Granted JPS5378709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15419276A JPS5378709A (en) 1976-12-23 1976-12-23 Fault monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15419276A JPS5378709A (en) 1976-12-23 1976-12-23 Fault monitoring system

Publications (2)

Publication Number Publication Date
JPS5378709A true JPS5378709A (en) 1978-07-12
JPS575376B2 JPS575376B2 (en) 1982-01-30

Family

ID=15578838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15419276A Granted JPS5378709A (en) 1976-12-23 1976-12-23 Fault monitoring system

Country Status (1)

Country Link
JP (1) JPS5378709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60501036A (en) * 1983-04-07 1985-07-04 コンソニツク　インコ−ポレ−テツド Condition monitoring device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10286677B2 (en) 2016-07-11 2019-05-14 Seiko Epson Corporation Liquid supply device and liquid ejecting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60501036A (en) * 1983-04-07 1985-07-04 コンソニツク　インコ−ポレ−テツド Condition monitoring device

Also Published As

Publication number Publication date
JPS575376B2 (en) 1982-01-30

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