JPS57157698A - System switching control method for electronic switching system - Google Patents

System switching control method for electronic switching system

Info

Publication number
JPS57157698A
JPS57157698A JP56043417A JP4341781A JPS57157698A JP S57157698 A JPS57157698 A JP S57157698A JP 56043417 A JP56043417 A JP 56043417A JP 4341781 A JP4341781 A JP 4341781A JP S57157698 A JPS57157698 A JP S57157698A
Authority
JP
Japan
Prior art keywords
switching
preliminary
current
status
channel device
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
JP56043417A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ogawa
Katsuo Uyama
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 JP56043417A priority Critical patent/JPS57157698A/en
Publication of JPS57157698A publication Critical patent/JPS57157698A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multi Processors (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE:To perform exchange processing successively preceding to switching by setting a status relating to each line connection on both current and preliminary channel devices in a current processor and making a preliminary procesor read the setting status from the preliminary channel device when a trouble occurs. CONSTITUTION:Normally, a current processr 11 sets up the status relating each line connection on both current and preliminarily channel devices 9, 10 and a switching device 8 selects the current channel device 9 to control each transmission line 6. At the time of trouble, the switching device 8 changes the connection to the line 6 and the preliminary channel device 10 and a preliminary processor 12 reads out the setting status from the preliminary channel device 10, performing exchange processing successively preceding to switching.
JP56043417A 1981-03-25 1981-03-25 System switching control method for electronic switching system Pending JPS57157698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56043417A JPS57157698A (en) 1981-03-25 1981-03-25 System switching control method for electronic switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56043417A JPS57157698A (en) 1981-03-25 1981-03-25 System switching control method for electronic switching system

Publications (1)

Publication Number Publication Date
JPS57157698A true JPS57157698A (en) 1982-09-29

Family

ID=12663130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56043417A Pending JPS57157698A (en) 1981-03-25 1981-03-25 System switching control method for electronic switching system

Country Status (1)

Country Link
JP (1) JPS57157698A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61236292A (en) * 1985-04-12 1986-10-21 Hitachi Ltd Channel controller
JPS61284193A (en) * 1985-06-11 1986-12-15 Iwatsu Electric Co Ltd Duplexed switching controller
JPS62256161A (en) * 1986-04-30 1987-11-07 Fujitsu Ltd Change over control system for spare device
JP2007223467A (en) * 2006-02-23 2007-09-06 Nishikawa Rubber Co Ltd Back door seal structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61236292A (en) * 1985-04-12 1986-10-21 Hitachi Ltd Channel controller
JPS61284193A (en) * 1985-06-11 1986-12-15 Iwatsu Electric Co Ltd Duplexed switching controller
JPS62256161A (en) * 1986-04-30 1987-11-07 Fujitsu Ltd Change over control system for spare device
JP2007223467A (en) * 2006-02-23 2007-09-06 Nishikawa Rubber Co Ltd Back door seal structure

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