JPS54100607A - Circuit common-control system of time-division digital telephone switchboard - Google Patents

Circuit common-control system of time-division digital telephone switchboard

Info

Publication number
JPS54100607A
JPS54100607A JP704378A JP704378A JPS54100607A JP S54100607 A JPS54100607 A JP S54100607A JP 704378 A JP704378 A JP 704378A JP 704378 A JP704378 A JP 704378A JP S54100607 A JPS54100607 A JP S54100607A
Authority
JP
Japan
Prior art keywords
common control
circuit
control part
calling
time
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
JP704378A
Other languages
Japanese (ja)
Inventor
Takuto Kojima
Michimitsu Hattori
Hideaki Makino
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 JP704378A priority Critical patent/JPS54100607A/en
Publication of JPS54100607A publication Critical patent/JPS54100607A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To transfer easily a control signal between a circuit-corresponding part and common control part by dividing one frame of a high-way into a time zone composed of calling time slots and that for information transfer. CONSTITUTION:When a subscriber takes up the receiver, loop detector 9 operates, which is detected by the common control part. Dial pulses are lead to parallel- series converter 13 and then transferred to the common control part by way of up highway 4 and information-inserting extracting circuit 8, so that an up information time slot be allotted to a circuit-corresponding part which is making call. The common control part the eight-bit calling time slot to the calling circuit-corresponding part to make a connection between the calling subscriber and called subscriber. To send out a ringer, the common control part transmits a control bit by a down control time slot and operates ringer relay 21.
JP704378A 1978-01-25 1978-01-25 Circuit common-control system of time-division digital telephone switchboard Pending JPS54100607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP704378A JPS54100607A (en) 1978-01-25 1978-01-25 Circuit common-control system of time-division digital telephone switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP704378A JPS54100607A (en) 1978-01-25 1978-01-25 Circuit common-control system of time-division digital telephone switchboard

Publications (1)

Publication Number Publication Date
JPS54100607A true JPS54100607A (en) 1979-08-08

Family

ID=11655013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP704378A Pending JPS54100607A (en) 1978-01-25 1978-01-25 Circuit common-control system of time-division digital telephone switchboard

Country Status (1)

Country Link
JP (1) JPS54100607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773590A (en) * 1980-10-24 1982-05-08 Nec Corp Receiving system for time sharing channel control information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773590A (en) * 1980-10-24 1982-05-08 Nec Corp Receiving system for time sharing channel control information

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