JPS56149195A - Fault search system - Google Patents

Fault search system

Info

Publication number
JPS56149195A
JPS56149195A JP5254980A JP5254980A JPS56149195A JP S56149195 A JPS56149195 A JP S56149195A JP 5254980 A JP5254980 A JP 5254980A JP 5254980 A JP5254980 A JP 5254980A JP S56149195 A JPS56149195 A JP S56149195A
Authority
JP
Japan
Prior art keywords
information
mem
storage
rwc
stored
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
JP5254980A
Other languages
Japanese (ja)
Inventor
Shoji Nojiri
Masato Fujisawa
Yoshikazu Tanaka
Kiyoshi Shibuya
Yoshiharu Kamio
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 JP5254980A priority Critical patent/JPS56149195A/en
Publication of JPS56149195A publication Critical patent/JPS56149195A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54575—Software application
    • H04Q3/54591—Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To take a maintenance diagnosis rapidly without influencing real-time service by storing all information passed through a common signal bus and by tracing operation hysteresis by reading the stored information upon occasion. CONSTITUTION:Synchronizing with information transferred from BUS, RWC stores the information in BR. This information is stored in an assigned address of MEM with the output of AC of MEM. After the storage is continued up to final address N equivalent to storage capacity N of MEM, the storage of the following information starts at the initial address again successively. Once ALM detects an abnormal operation state of a telephone exchange, AL is sent out. Then, RWC having received this AL stops the storage of the following information, arriving via BUS, in MEM. When a person in charge of maintenance actuates PR attached to TRR, RWC, while driving frozen AC again, reads and outputs N pieces of information stored in MEM to PR.
JP5254980A 1980-04-21 1980-04-21 Fault search system Pending JPS56149195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5254980A JPS56149195A (en) 1980-04-21 1980-04-21 Fault search system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5254980A JPS56149195A (en) 1980-04-21 1980-04-21 Fault search system

Publications (1)

Publication Number Publication Date
JPS56149195A true JPS56149195A (en) 1981-11-18

Family

ID=12917873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5254980A Pending JPS56149195A (en) 1980-04-21 1980-04-21 Fault search system

Country Status (1)

Country Link
JP (1) JPS56149195A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963851A (en) * 1982-10-04 1984-04-11 Matsushita Electric Ind Co Ltd Electronic exchange
JPH0310350A (en) * 1989-06-07 1991-01-17 Nec Ibaraki Ltd Bus trace system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963851A (en) * 1982-10-04 1984-04-11 Matsushita Electric Ind Co Ltd Electronic exchange
JPH0310350A (en) * 1989-06-07 1991-01-17 Nec Ibaraki Ltd Bus trace system

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