JPS5656089A - Remote control time-division exchange system - Google Patents

Remote control time-division exchange system

Info

Publication number
JPS5656089A
JPS5656089A JP13145479A JP13145479A JPS5656089A JP S5656089 A JPS5656089 A JP S5656089A JP 13145479 A JP13145479 A JP 13145479A JP 13145479 A JP13145479 A JP 13145479A JP S5656089 A JPS5656089 A JP S5656089A
Authority
JP
Japan
Prior art keywords
circuit
digital
control
frame
master
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
JP13145479A
Other languages
Japanese (ja)
Inventor
Mitsuru Ishikawa
Tadashi Hirota
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13145479A priority Critical patent/JPS5656089A/en
Publication of JPS5656089A publication Critical patent/JPS5656089A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To make exchange connections by using a circuit connected to a different frame when a digital circuit extending to a master circuit runs into trouble, by providing a circuit change-over circuit that connects the digital circuit, extending to the master station, to the digital circuit from the other frame. CONSTITUTION:When the digital circuit connected to line frame 100 is in trouble, control circuit 100-16 recieves and monitors control information from control circuits 200-16 and 300-16 of line frames 200 and 300. On receiving the information, control circuit 200-16 sends the information to control circuit 100-16 and also controls change-over circuit 200-17 to connect CODEC 100-10 to master-station/digital-circuit interface circuit 200-13. Further, control circuit 100-16 controls change-over circuit 100-20 to connect interface circuit 200-13 to CODEC 100-10. Namely, calls of subscribers equipped in line frame 100 can be connected to the master station via interface circuit 200-13 of line frame 200 and the interruption of exchange services for subscribers equipped in line frame 100 can be evaded.
JP13145479A 1979-10-12 1979-10-12 Remote control time-division exchange system Pending JPS5656089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13145479A JPS5656089A (en) 1979-10-12 1979-10-12 Remote control time-division exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13145479A JPS5656089A (en) 1979-10-12 1979-10-12 Remote control time-division exchange system

Publications (1)

Publication Number Publication Date
JPS5656089A true JPS5656089A (en) 1981-05-16

Family

ID=15058327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13145479A Pending JPS5656089A (en) 1979-10-12 1979-10-12 Remote control time-division exchange system

Country Status (1)

Country Link
JP (1) JPS5656089A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210997A (en) * 1985-05-03 1987-01-19 アメリカン テレフオン アンドテレグラフ カムパニ− Base station for earth communication system
JPS62214757A (en) * 1986-03-10 1987-09-21 ジ−メンス・アクチエンゲゼルシヤフト Circuit apparatus for central control communication exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210997A (en) * 1985-05-03 1987-01-19 アメリカン テレフオン アンドテレグラフ カムパニ− Base station for earth communication system
JPS62214757A (en) * 1986-03-10 1987-09-21 ジ−メンス・アクチエンゲゼルシヤフト Circuit apparatus for central control communication exchanger

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