JPS5457807A - Switchboard on decentralized control system - Google Patents

Switchboard on decentralized control system

Info

Publication number
JPS5457807A
JPS5457807A JP12357977A JP12357977A JPS5457807A JP S5457807 A JPS5457807 A JP S5457807A JP 12357977 A JP12357977 A JP 12357977A JP 12357977 A JP12357977 A JP 12357977A JP S5457807 A JPS5457807 A JP S5457807A
Authority
JP
Japan
Prior art keywords
trunk
busy
processors
trunks
signal
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
JP12357977A
Other languages
Japanese (ja)
Other versions
JPS5853839B2 (en
Inventor
Nobuaki Saito
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 JP12357977A priority Critical patent/JPS5853839B2/en
Publication of JPS5457807A publication Critical patent/JPS5457807A/en
Publication of JPS5853839B2 publication Critical patent/JPS5853839B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored program
    • H04Q3/54541—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored program using multi-processor systems
    • H04Q3/5455—Multi-processor, parallelism, distributed systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multi Processors (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To obtain a decentralized-control-system electronic switchboard which is capable of utilizing at the maximum the processing performance of a processor controlling the in-use state of a trunk, by making it possible to read the ''bucy'' display memories for trunks directly even from the processors making selections of trunks. CONSTITUTION:This switchboard is provided with signal processors 4'-1 to 4'-m, connection control processors 5'-1 to 5'-m, ''busy'' display memories 7-1 to 7-m for trunks, parts 8-1 to 8-m in signal processors except busy display memories, read- out bus 9 of ''busy'' display memories for trunks, and information switching bus circuit 10 between signal processors and connection control processors. After the kind of a trunk is determined, a connection control processor actuated reads trunk- busy display memories sequentially by using read-out bus 9 in order to select a usable and idle trunk of the selected kind and a trunk-acquisition command signal is transmitted via circuit 10 to a signal processor in charge of the selected trunk, so that the signal processor which has received the command signal will make the trunk-busy display memory busy.
JP12357977A 1977-10-17 1977-10-17 distributed control switch Expired JPS5853839B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12357977A JPS5853839B2 (en) 1977-10-17 1977-10-17 distributed control switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12357977A JPS5853839B2 (en) 1977-10-17 1977-10-17 distributed control switch

Publications (2)

Publication Number Publication Date
JPS5457807A true JPS5457807A (en) 1979-05-10
JPS5853839B2 JPS5853839B2 (en) 1983-12-01

Family

ID=14864069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12357977A Expired JPS5853839B2 (en) 1977-10-17 1977-10-17 distributed control switch

Country Status (1)

Country Link
JP (1) JPS5853839B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156494A (en) * 1979-05-24 1980-12-05 Kokusai Denshin Denwa Co Ltd <Kdd> Alternation system between exchange unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156494A (en) * 1979-05-24 1980-12-05 Kokusai Denshin Denwa Co Ltd <Kdd> Alternation system between exchange unit

Also Published As

Publication number Publication date
JPS5853839B2 (en) 1983-12-01

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