JPS5773555A - Failure detection system - Google Patents

Failure detection system

Info

Publication number
JPS5773555A
JPS5773555A JP14899280A JP14899280A JPS5773555A JP S5773555 A JPS5773555 A JP S5773555A JP 14899280 A JP14899280 A JP 14899280A JP 14899280 A JP14899280 A JP 14899280A JP S5773555 A JPS5773555 A JP S5773555A
Authority
JP
Japan
Prior art keywords
monitor device
external monitor
call
signal
timer
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
JP14899280A
Other languages
English (en)
Inventor
Katsuo Uyama
Akira Onodera
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 JP14899280A priority Critical patent/JPS5773555A/ja
Publication of JPS5773555A publication Critical patent/JPS5773555A/ja
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
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP14899280A 1980-10-24 1980-10-24 Failure detection system Pending JPS5773555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14899280A JPS5773555A (en) 1980-10-24 1980-10-24 Failure detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14899280A JPS5773555A (en) 1980-10-24 1980-10-24 Failure detection system

Publications (1)

Publication Number Publication Date
JPS5773555A true JPS5773555A (en) 1982-05-08

Family

ID=15465272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14899280A Pending JPS5773555A (en) 1980-10-24 1980-10-24 Failure detection system

Country Status (1)

Country Link
JP (1) JPS5773555A (ja)

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