FR2315815A1 - Switching system for telephone exchange - uses standby spares to replace failed switch groups and is controlled by data processor which reassigns transmission channels - Google Patents

Switching system for telephone exchange - uses standby spares to replace failed switch groups and is controlled by data processor which reassigns transmission channels

Info

Publication number
FR2315815A1
FR2315815A1 FR7618999A FR7618999A FR2315815A1 FR 2315815 A1 FR2315815 A1 FR 2315815A1 FR 7618999 A FR7618999 A FR 7618999A FR 7618999 A FR7618999 A FR 7618999A FR 2315815 A1 FR2315815 A1 FR 2315815A1
Authority
FR
France
Prior art keywords
switching
switching system
reassigns
spares
controlled
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
FR7618999A
Other languages
French (fr)
Other versions
FR2315815B3 (en
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.)
Ericsson Australia Pty Ltd
Original Assignee
LM Ericsson Pty 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 LM Ericsson Pty Ltd filed Critical LM Ericsson Pty Ltd
Publication of FR2315815A1 publication Critical patent/FR2315815A1/en
Application granted granted Critical
Publication of FR2315815B3 publication Critical patent/FR2315815B3/fr
Granted 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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

The telephone switching system for a time division multiplexed network contains several groups of active switching units with standby spare groups of switching units which can be connected to replace failed active groups. Each group (103(1)-103(30)) contains a switching unit (101) connected to the input/output channels (107) of the telephone network (109) and connected to a sequencer (105) for transmitting the time multiplexed channels to a second switching system. When one of the switching groups (101) fails the processor (102) re-assigns the channels of the failed group to a standby group of spare switching units, and hence restores the switching systems operations.
FR7618999A 1975-06-23 1976-06-22 Switching system for telephone exchange - uses standby spares to replace failed switch groups and is controlled by data processor which reassigns transmission channels Granted FR2315815A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPC207375 1975-06-23

Publications (2)

Publication Number Publication Date
FR2315815A1 true FR2315815A1 (en) 1977-01-21
FR2315815B3 FR2315815B3 (en) 1979-03-23

Family

ID=3766252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7618999A Granted FR2315815A1 (en) 1975-06-23 1976-06-22 Switching system for telephone exchange - uses standby spares to replace failed switch groups and is controlled by data processor which reassigns transmission channels

Country Status (9)

Country Link
JP (1) JPS523313A (en)
AU (1) AU1515376A (en)
BE (1) BE843298A (en)
DE (1) DE2628105A1 (en)
DK (1) DK279176A (en)
FR (1) FR2315815A1 (en)
IT (1) IT1061139B (en)
NL (1) NL7606844A (en)
NO (1) NO762162L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003448A1 (en) * 1978-01-20 1979-08-08 Thomson-Csf Space-time division connection network
EP0003633A1 (en) * 1978-02-13 1979-08-22 Motorola, Inc. A method of and an apparatus for a radiotelephone communications system
FR2416599A1 (en) * 1978-02-01 1979-08-31 Nippon Telegraph & Telephone TIME-DISTRIBUTED TELEPHONE SWITCHING SYSTEM
EP0006214A1 (en) * 1978-06-19 1980-01-09 COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL S.A. dite: Time division connexion network and means for mitigating the effects of failures
FR2447660A1 (en) * 1979-01-26 1980-08-22 Cit Alcatel Traffic distribution control for temporal switching network - allows temporal and spatial mixing between multiplex inputs and multiplex input switching connections and multiplex outputs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160127A (en) * 1978-06-27 1979-07-03 Bell Telephone Laboratories, Incorporated Time-slot interchange with protection switching

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003448A1 (en) * 1978-01-20 1979-08-08 Thomson-Csf Space-time division connection network
FR2415407A1 (en) * 1978-01-20 1979-08-17 Thomson Csf SPATIO-TEMPORAL CONNECTION NETWORK
FR2416599A1 (en) * 1978-02-01 1979-08-31 Nippon Telegraph & Telephone TIME-DISTRIBUTED TELEPHONE SWITCHING SYSTEM
EP0003633A1 (en) * 1978-02-13 1979-08-22 Motorola, Inc. A method of and an apparatus for a radiotelephone communications system
EP0006214A1 (en) * 1978-06-19 1980-01-09 COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL S.A. dite: Time division connexion network and means for mitigating the effects of failures
FR2447660A1 (en) * 1979-01-26 1980-08-22 Cit Alcatel Traffic distribution control for temporal switching network - allows temporal and spatial mixing between multiplex inputs and multiplex input switching connections and multiplex outputs

Also Published As

Publication number Publication date
NO762162L (en) 1976-12-27
DK279176A (en) 1976-12-24
NL7606844A (en) 1976-12-27
BE843298A (en) 1976-10-18
JPS523313A (en) 1977-01-11
AU1515376A (en) 1978-01-05
DE2628105A1 (en) 1977-01-27
FR2315815B3 (en) 1979-03-23
IT1061139B (en) 1982-10-20

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Legal Events

Date Code Title Description
ST Notification of lapse