JPS54509A - Fault detection system - Google Patents

Fault detection system

Info

Publication number
JPS54509A
JPS54509A JP6488277A JP6488277A JPS54509A JP S54509 A JPS54509 A JP S54509A JP 6488277 A JP6488277 A JP 6488277A JP 6488277 A JP6488277 A JP 6488277A JP S54509 A JPS54509 A JP S54509A
Authority
JP
Japan
Prior art keywords
detection system
fault detection
potentiality
sender
failures
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
JP6488277A
Other languages
Japanese (ja)
Inventor
Hiroshi Chikira
Yoshinori Tawara
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 JP6488277A priority Critical patent/JPS54509A/en
Publication of JPS54509A publication Critical patent/JPS54509A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To increase the subscriber service, by eliminating the potentiality of failure, through the detection of failures in communication lines during the delivery of connection information after starting the subsequent station from a sender.
JP6488277A 1977-06-03 1977-06-03 Fault detection system Pending JPS54509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6488277A JPS54509A (en) 1977-06-03 1977-06-03 Fault detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6488277A JPS54509A (en) 1977-06-03 1977-06-03 Fault detection system

Publications (1)

Publication Number Publication Date
JPS54509A true JPS54509A (en) 1979-01-05

Family

ID=13270915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6488277A Pending JPS54509A (en) 1977-06-03 1977-06-03 Fault detection system

Country Status (1)

Country Link
JP (1) JPS54509A (en)

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