GB1487501A - Telecommunications exchange - Google Patents

Telecommunications exchange

Info

Publication number
GB1487501A
GB1487501A GB2931/75A GB293175A GB1487501A GB 1487501 A GB1487501 A GB 1487501A GB 2931/75 A GB2931/75 A GB 2931/75A GB 293175 A GB293175 A GB 293175A GB 1487501 A GB1487501 A GB 1487501A
Authority
GB
United Kingdom
Prior art keywords
mini
processor
network
processors
maintenance
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.)
Expired
Application number
GB2931/75A
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Compagnie Industrielle de Telecommunication CIT Alcatel SA
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 Alcatel CIT SA, Compagnie Industrielle de Telecommunication CIT Alcatel SA filed Critical Alcatel CIT SA
Publication of GB1487501A publication Critical patent/GB1487501A/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 programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

1487501 Automatic control systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2931/75 Heading H4K In a telecommunications exchange, the switching network and its terminal circuits are controlled by a plurality of stored program controlled mini-processors performing different functions and supervised by a central processor and a maintenance processor, the normally operative mini-processors being connected to the network via individual interface units, the arrangement is such that any defective miniprocessor is automatically replaced by a reserve mini-processor. As shown mini-processors MPF1-MPF4 perform line scanning and identification, path selection, dial signal (pulse or frequency) decoding, and junctor supervision respectively for a network R.C. of mini relay matrices. The mini-processors are supervised by a central processor CP having a store MC in which among other things class of service data is stored, and maintenance processor PM and memory MM which stores a copy of all the programs for MPF1-MPF4 and PC and the data in MC. If maintenance processor PM detects a faulty mini-processor it operates a corresponding changeover switch A1, A2, A3 or A4 to cut out that processor and cut in a reserve mini-processor MPS which it programs to take over the function. The front end processors monitor in real time the operation of the network and faults are reported to and recorded in the maintenance computer and on request logged and flagged on a line printer. The use of a time division network as an alternative to the relay network is mentioned.
GB2931/75A 1974-01-24 1975-01-23 Telecommunications exchange Expired GB1487501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7402405A FR2259507B1 (en) 1974-01-24 1974-01-24

Publications (1)

Publication Number Publication Date
GB1487501A true GB1487501A (en) 1977-10-05

Family

ID=9133934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2931/75A Expired GB1487501A (en) 1974-01-24 1975-01-23 Telecommunications exchange

Country Status (12)

Country Link
JP (1) JPS50105211A (en)
BE (1) BE824261A (en)
CA (1) CA1048628A (en)
CH (1) CH589993A5 (en)
DE (1) DE2502516A1 (en)
FR (1) FR2259507B1 (en)
GB (1) GB1487501A (en)
IE (1) IE40367B1 (en)
IT (1) IT1031080B (en)
NL (1) NL7500883A (en)
OA (1) OA04885A (en)
SE (1) SE7500715L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441887A1 (en) * 1978-11-20 1980-06-13 Int Standard Electric Corp DATA VIEWING SYSTEM
EP0012281A1 (en) * 1978-12-08 1980-06-25 Siemens Aktiengesellschaft Method and circuit arrangement for switching and delivery of signals in or from a stored programme-controlled exchange
DK156357B (en) * 1978-03-17 1989-08-07 Alcatel Nv DIGITAL CONNECTOR WITH DISTRIBUTED CONTROL

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256926A (en) * 1976-10-21 1981-03-17 Wescom Switching, Inc. Microprocessor control complex for a telecommunication switching system
US4194090A (en) * 1976-11-27 1980-03-18 Nippon Electric Co., Ltd. Decentralized-control type electronic switching system
JPS5399705A (en) * 1977-02-12 1978-08-31 Nippon Telegr & Teleph Corp <Ntt> Decentralized control system in electronic switching system
JPS548905A (en) * 1977-06-23 1979-01-23 Nec Corp Multi processor control system
US4210782A (en) * 1977-06-23 1980-07-01 Nippon Electric Co., Ltd. Distributed control type telephone switching system
JPS548906A (en) * 1977-06-23 1979-01-23 Nec Corp Multi processor control system
IT1111606B (en) * 1978-03-03 1986-01-13 Cselt Centro Studi Lab Telecom MULTI-CONFIGURABLE MODULAR PROCESSING SYSTEM INTEGRATED WITH A PRE-PROCESSING SYSTEM
DE2813291C2 (en) * 1978-03-28 1983-04-07 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for processing subscriber connection criteria in telecommunications, in particular telephone switching systems, with central processing devices
DE2947594A1 (en) * 1979-11-26 1981-05-27 Siemens AG, 1000 Berlin und 8000 München METHOD FOR INDIVIDUALLY CONTROLLING THE SETS OF A SET OF SETS OF A TELECOMMUNICATION SYSTEM, ESPECIALLY A TELECOMMUNICATION SWITCHING SYSTEM
DE3136287A1 (en) * 1981-09-12 1983-04-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart Multicomputer system in particular for a videotex computer centre
DE3334766A1 (en) * 1983-09-26 1985-04-11 Siemens AG, 1000 Berlin und 8000 München MULTIPROCESSOR CENTRAL CONTROL UNIT OF A SWITCHING SYSTEM, IN PARTICULAR TELEPHONE SWITCHING SYSTEM
ES2109869B1 (en) * 1995-04-03 1998-08-01 Telefonica Nacional Espana Co DIGITAL CONTROL UNIT FOR ELECTROMECHANICAL POWER PLANTS.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767863A (en) * 1972-05-22 1973-10-23 Gte Automatic Electric Lab Inc Communication switching system with modular organization and bus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK156357B (en) * 1978-03-17 1989-08-07 Alcatel Nv DIGITAL CONNECTOR WITH DISTRIBUTED CONTROL
FR2441887A1 (en) * 1978-11-20 1980-06-13 Int Standard Electric Corp DATA VIEWING SYSTEM
EP0012281A1 (en) * 1978-12-08 1980-06-25 Siemens Aktiengesellschaft Method and circuit arrangement for switching and delivery of signals in or from a stored programme-controlled exchange

Also Published As

Publication number Publication date
JPS50105211A (en) 1975-08-19
IE40367B1 (en) 1979-05-09
BE824261A (en) 1975-07-10
OA04885A (en) 1980-10-31
CA1048628A (en) 1979-02-13
CH589993A5 (en) 1977-07-29
SE7500715L (en) 1975-07-25
IT1031080B (en) 1979-04-30
FR2259507B1 (en) 1980-01-18
DE2502516A1 (en) 1975-07-31
FR2259507A1 (en) 1975-08-22
IE40367L (en) 1975-07-24
NL7500883A (en) 1975-07-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee