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JPS56122595A - Decentralized and centralized hybrid control system for line concentration stage - Google Patents

Decentralized and centralized hybrid control system for line concentration stage

Info

Publication number
JPS56122595A
JPS56122595A JP2519380A JP2519380A JPS56122595A JP S56122595 A JPS56122595 A JP S56122595A JP 2519380 A JP2519380 A JP 2519380A JP 2519380 A JP2519380 A JP 2519380A JP S56122595 A JPS56122595 A JP S56122595A
Authority
JP
Japan
Prior art keywords
control
control part
line
centralized
module
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
JP2519380A
Other languages
Japanese (ja)
Other versions
JPS6333752B2 (en
Inventor
Kozo Murakami
Yuji Endo
Seishiro Oguchi
Susumu Obara
Toru Handa
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 JP2519380A priority Critical patent/JPS56122595A/en
Publication of JPS56122595A publication Critical patent/JPS56122595A/en
Publication of JPS6333752B2 publication Critical patent/JPS6333752B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/60—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To reduce the cost of a decentralized and centralized hydrid control system for a line concentration stage, by managing with one control part in each module by exercising centralized control by normal control parts includes in other modules if one control part runs into trouble at the line concentration state of a digital switchboard. CONSTITUTION:In normal operation, control-line selecting circuit 13 selects control information from control part 12 in module 10 to exercise decentralized control. If control part 2 of module 0 is diabled to operate, the distribution stage side sends a control-line selection signal to control-line selecting circuit 3 via highway 5 and signal inserting-extracting circuit 4 so that circuit 3 will select the control information from control part 12, and consequently line-concentration channels 1 and 11 are brought under the centralized control of control part 12. Prior to the transition to the centralized control mode, path information on module 0 and various information held by control part 2 before the trouble occurs are transferred to control part 12 via common line signal route 7, the distribution stage and common line signal route 17.
JP2519380A 1980-03-03 1980-03-03 Decentralized and centralized hybrid control system for line concentration stage Granted JPS56122595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2519380A JPS56122595A (en) 1980-03-03 1980-03-03 Decentralized and centralized hybrid control system for line concentration stage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2519380A JPS56122595A (en) 1980-03-03 1980-03-03 Decentralized and centralized hybrid control system for line concentration stage

Publications (2)

Publication Number Publication Date
JPS56122595A true JPS56122595A (en) 1981-09-26
JPS6333752B2 JPS6333752B2 (en) 1988-07-06

Family

ID=12159119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2519380A Granted JPS56122595A (en) 1980-03-03 1980-03-03 Decentralized and centralized hybrid control system for line concentration stage

Country Status (1)

Country Link
JP (1) JPS56122595A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0177334U (en) * 1987-11-11 1989-05-24

Also Published As

Publication number Publication date
JPS6333752B2 (en) 1988-07-06

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