JPS57208790A - Time division exchanger controlling system - Google Patents

Time division exchanger controlling system

Info

Publication number
JPS57208790A
JPS57208790A JP9385481A JP9385481A JPS57208790A JP S57208790 A JPS57208790 A JP S57208790A JP 9385481 A JP9385481 A JP 9385481A JP 9385481 A JP9385481 A JP 9385481A JP S57208790 A JPS57208790 A JP S57208790A
Authority
JP
Japan
Prior art keywords
time division
circuit
subscriber
parallel
subscribers
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
JP9385481A
Other languages
Japanese (ja)
Inventor
Yutaka Fukushima
Makoto Hisamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9385481A priority Critical patent/JPS57208790A/en
Publication of JPS57208790A publication Critical patent/JPS57208790A/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 enable to apply a call processing program developed for a spatial split type exchanger to a time division type exchanger without any change, by providing a function which exchanges a control signal as well as an audio signal for a time division switch. CONSTITUTION:Voices from subscribers A and B are coded at subscriber circuits SUB1 and SUBn and connected to trunks TRK1 and TRKn via a serial parallel converting circuit 8P, a time division network TDNW, and a parallel serial conversion circuit PS. On the other hand, the state of calling of a subscriber, dial and during call, are processed in parallel at the same time slot as an audio signal bit via a multiplex circuit M. Thus, a trunk scanning circuit TSCN receives control information representing the state of subscribers in the same way that the information is received from a trunk connecting the subscriber. Further, a signal such as polarity inversion can be transmitted reversingly via a separating circuit D with the similar method from a relay controller RC.
JP9385481A 1981-06-19 1981-06-19 Time division exchanger controlling system Pending JPS57208790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9385481A JPS57208790A (en) 1981-06-19 1981-06-19 Time division exchanger controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9385481A JPS57208790A (en) 1981-06-19 1981-06-19 Time division exchanger controlling system

Publications (1)

Publication Number Publication Date
JPS57208790A true JPS57208790A (en) 1982-12-21

Family

ID=14093998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9385481A Pending JPS57208790A (en) 1981-06-19 1981-06-19 Time division exchanger controlling system

Country Status (1)

Country Link
JP (1) JPS57208790A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55141882A (en) * 1979-04-24 1980-11-06 Nec Corp Reception system for selective signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55141882A (en) * 1979-04-24 1980-11-06 Nec Corp Reception system for selective signal

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