JPS5427707A - Inter-unit information transfer circuit on redundancy system - Google Patents

Inter-unit information transfer circuit on redundancy system

Info

Publication number
JPS5427707A
JPS5427707A JP9356177A JP9356177A JPS5427707A JP S5427707 A JPS5427707 A JP S5427707A JP 9356177 A JP9356177 A JP 9356177A JP 9356177 A JP9356177 A JP 9356177A JP S5427707 A JPS5427707 A JP S5427707A
Authority
JP
Japan
Prior art keywords
inter
information transfer
transfer circuit
unit information
redundancy system
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
JP9356177A
Other languages
Japanese (ja)
Other versions
JPS5759976B2 (en
Inventor
Shinichi Maeno
Akira Takei
Koichi Miyamoto
Toshiro Aoki
Hironobu Yoshida
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP9356177A priority Critical patent/JPS5427707A/en
Publication of JPS5427707A publication Critical patent/JPS5427707A/en
Publication of JPS5759976B2 publication Critical patent/JPS5759976B2/ja
Granted 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
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/241—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for stored program controlled exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To simplify a circuit for a maintenance device without sending out an operation mode assignment signal from the maintenance device at the time of a change-over to a standby device, and to simplify the control by eliminating the need of the control by software.
JP9356177A 1977-08-03 1977-08-03 Inter-unit information transfer circuit on redundancy system Granted JPS5427707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9356177A JPS5427707A (en) 1977-08-03 1977-08-03 Inter-unit information transfer circuit on redundancy system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9356177A JPS5427707A (en) 1977-08-03 1977-08-03 Inter-unit information transfer circuit on redundancy system

Publications (2)

Publication Number Publication Date
JPS5427707A true JPS5427707A (en) 1979-03-02
JPS5759976B2 JPS5759976B2 (en) 1982-12-17

Family

ID=14085650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9356177A Granted JPS5427707A (en) 1977-08-03 1977-08-03 Inter-unit information transfer circuit on redundancy system

Country Status (1)

Country Link
JP (1) JPS5427707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01173040A (en) * 1987-12-28 1989-07-07 Dainippon Printing Co Ltd Glass pattern for photoengraving

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01173040A (en) * 1987-12-28 1989-07-07 Dainippon Printing Co Ltd Glass pattern for photoengraving

Also Published As

Publication number Publication date
JPS5759976B2 (en) 1982-12-17

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