IE40367B1 - A telecommunications exchange - Google Patents

A telecommunications exchange

Info

Publication number
IE40367B1
IE40367B1 IE128/75A IE12875A IE40367B1 IE 40367 B1 IE40367 B1 IE 40367B1 IE 128/75 A IE128/75 A IE 128/75A IE 12875 A IE12875 A IE 12875A IE 40367 B1 IE40367 B1 IE 40367B1
Authority
IE
Ireland
Prior art keywords
mini
processor
network
processors
maintenance
Prior art date
Application number
IE128/75A
Other versions
IE40367L (en
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of IE40367L publication Critical patent/IE40367L/en
Publication of IE40367B1 publication Critical patent/IE40367B1/en

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. [GB1487501A]
IE128/75A 1974-01-24 1975-01-23 A telecommunications exchange IE40367B1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IE40367L IE40367L (en) 1975-07-24
IE40367B1 true IE40367B1 (en) 1979-05-09

Family

ID=9133934

Family Applications (1)

Application Number Title Priority Date Filing Date
IE128/75A IE40367B1 (en) 1974-01-24 1975-01-23 A 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)

Families Citing this family (15)

* 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
US4201889A (en) * 1978-03-17 1980-05-06 International Telephone And Telegraph Distributed control digital switching system
US4210782A (en) * 1977-06-23 1980-07-01 Nippon Electric Co., Ltd. Distributed control type telephone switching system
JPS548905A (en) * 1977-06-23 1979-01-23 Nec Corp Multi processor control 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
DE2850252C2 (en) * 1978-11-20 1980-09-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart On-screen text system
DE2853138C2 (en) * 1978-12-08 1980-12-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method and circuit arrangement for the transmission of signals in memory-programmed switching systems
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

Also Published As

Publication number Publication date
NL7500883A (en) 1975-07-28
DE2502516A1 (en) 1975-07-31
IE40367L (en) 1975-07-24
IT1031080B (en) 1979-04-30
SE7500715L (en) 1975-07-25
JPS50105211A (en) 1975-08-19
FR2259507A1 (en) 1975-08-22
CA1048628A (en) 1979-02-13
BE824261A (en) 1975-07-10
GB1487501A (en) 1977-10-05
OA04885A (en) 1980-10-31
FR2259507B1 (en) 1980-01-18
CH589993A5 (en) 1977-07-29

Similar Documents

Publication Publication Date Title
IE40367L (en) Telecommunications exchange
US4371754A (en) Automatic fault recovery system for a multiple processor telecommunications switching control
US3409877A (en) Automatic maintenance arrangement for data processing systems
US2782256A (en) Timing circuits
US3810121A (en) Timing generator circuit for central data processor of digital communication system
US3991406A (en) Program controlled data processing system
GB1081812A (en) Data handling system
US3958111A (en) Remote diagnostic apparatus
FR1568070A (en)
US3964055A (en) Data processing system employing one of a plurality of identical processors as a controller
US4779087A (en) Loop transmission system with frame synchronization control
CA1194191A (en) Clock selection control circuit
US2279531A (en) Automatic telephone system
US4260859A (en) Method and apparatus for detecting transmission system failures in a communications network
US3920920A (en) Data insertion in the speech memory of a time division switching system
US3920977A (en) Arrangement and method for switching the electronic subsystems of a common control communication switching system without interference to call processing
GB1215283A (en) System for the selective operation of relays
US2771519A (en) Routine trunk test circuit
US2595388A (en) Telephone conversation timing means
US3737869A (en) Electric control distributor
US2543003A (en) Selection control for telephone systems
US2836653A (en) Tape movement check in a telegraph system
US4028676A (en) Control of peripheral apparatus in telecommunication
US2559746A (en) Arrangement for night watchman controls
GB1572895A (en) Data processing equipment