WO1988000786A3 - Dispositif de securite pour un systeme d'echange de telecommunications - Google Patents

Dispositif de securite pour un systeme d'echange de telecommunications Download PDF

Info

Publication number
WO1988000786A3
WO1988000786A3 PCT/GB1987/000525 GB8700525W WO8800786A3 WO 1988000786 A3 WO1988000786 A3 WO 1988000786A3 GB 8700525 W GB8700525 W GB 8700525W WO 8800786 A3 WO8800786 A3 WO 8800786A3
Authority
WO
WIPO (PCT)
Prior art keywords
security
plane
exchange system
security arrangement
path
Prior art date
Application number
PCT/GB1987/000525
Other languages
English (en)
Other versions
WO1988000786A2 (fr
Inventor
John William Ansell
Geoffrey Chopping
Richard Noel Waters
Original Assignee
Plessey Co Plc
John William Ansell
Geoffrey Chopping
Richard Noel Waters
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 Plessey Co Plc, John William Ansell, Geoffrey Chopping, Richard Noel Waters filed Critical Plessey Co Plc
Publication of WO1988000786A2 publication Critical patent/WO1988000786A2/fr
Priority to FI881395A priority Critical patent/FI881395A0/fi
Priority to KR1019880700323A priority patent/KR880702035A/ko
Priority to DK162688A priority patent/DK162688A/da
Publication of WO1988000786A3 publication Critical patent/WO1988000786A3/fr

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
    • H04Q11/0421—Circuit arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
    • 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)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Le dispositif de sécurité décrit est destiné à un système de télécommunications comprenant deux plans de sécurité, plusieurs périphériques, plusieurs dispositifs de commande de la liaison avec les périphériques et des dispositifs de commutation interconnectant les dispositifs de commande de la liaison des périphériques. Afin de déterminer un plan de sécurité défaillant, on prévoit un passage double entre les dispositifs de commande et grâce à l'utilisation de ce passage, un dispositif de commande peut automatiquement effectuer des contrôles du passage sur l'un des plans de sécurité. Si le plan ne se révèle pas défaillant, le dispositif de commande envoie les données correspondant audit plan périphérique avec lequel il est en liaison.
PCT/GB1987/000525 1986-07-24 1987-07-22 Dispositif de securite pour un systeme d'echange de telecommunications WO1988000786A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI881395A FI881395A0 (fi) 1986-07-24 1988-03-23 Saekerhetsanordning foer ett system i fjaerrkommunikationsvaexel.
KR1019880700323A KR880702035A (ko) 1986-07-24 1988-03-24 전기통신 교환시스템용 보안장치
DK162688A DK162688A (da) 1986-07-24 1988-03-24 Sikkerhedsarrangement til et telekommunikationscentralsystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868618100A GB8618100D0 (en) 1986-07-24 1986-07-24 Security arrangement
GB8618100 1986-07-24

Publications (2)

Publication Number Publication Date
WO1988000786A2 WO1988000786A2 (fr) 1988-01-28
WO1988000786A3 true WO1988000786A3 (fr) 1988-03-24

Family

ID=10601635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1987/000525 WO1988000786A2 (fr) 1986-07-24 1987-07-22 Dispositif de securite pour un systeme d'echange de telecommunications

Country Status (11)

Country Link
US (1) US4858223A (fr)
EP (1) EP0254559A3 (fr)
JP (1) JPH01500951A (fr)
KR (1) KR880702035A (fr)
CN (1) CN1008049B (fr)
DK (1) DK162688A (fr)
FI (1) FI881395A0 (fr)
GB (2) GB8618100D0 (fr)
IN (1) IN168441B (fr)
PT (1) PT85393A (fr)
WO (1) WO1988000786A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219172B (en) * 1988-03-30 1992-07-08 Plessey Co Plc A data path checking system
SE515342C2 (sv) * 1994-04-29 2001-07-16 Ericsson Telefon Ab L M Digitalt tidsväljarsystem
WO2009073602A2 (fr) * 2007-11-30 2009-06-11 University Of South Florida Appareil à ballonnet hydraulique trans-endoscopique
US8731002B2 (en) * 2011-03-25 2014-05-20 Invensense, Inc. Synchronization, re-synchronization, addressing, and serialized signal processing for daisy-chained communication devices
US9320036B2 (en) * 2013-07-17 2016-04-19 Cisco Technology, Inc. Installation of time slots for sending a packet through an ARC chain topology network

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149038A (en) * 1978-05-15 1979-04-10 Wescom Switching, Inc. Method and apparatus for fault detection in PCM muliplexed system
GB2086191A (en) * 1980-10-07 1982-05-06 Italtel Spa Controlling space-time continuity in dynamic connections of buffer networks for time-division
US4413335A (en) * 1981-11-27 1983-11-01 Gte Automatic Electric Labs Inc. Fault recovery apparatus for a PCM switching network
WO1985001410A1 (fr) * 1983-09-12 1985-03-28 Western Electric Company, Inc. Systeme de commutation double a division temporelle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974340A (en) * 1973-03-19 1976-08-10 L.M. Ericsson Pty Ltd. Data switching apparatus and method
FR2233780B1 (fr) * 1973-06-13 1977-05-06 Materiel Telephonique
GB1582456A (en) * 1977-04-02 1981-01-07 Gen Electric Digital telecommunication switching systems
IT1133349B (it) * 1980-10-07 1986-07-09 Italtel Spa Rete di transito perfezionata per sistemi di telecomunicazioni a divisione di tempo
US4424421A (en) * 1981-10-23 1984-01-03 Lynch Communication Systems, Inc. Apparatus for testing subscriber carrier systems
US4382294A (en) * 1981-10-26 1983-05-03 Bell Telephone Laboratories, Incorporated Telephone switching control arrangement
GB2120041B (en) * 1982-04-24 1985-10-02 Plessey Co Plc Digital switching network for telecommunications exchange
US4500985A (en) * 1982-12-08 1985-02-19 At&T Bell Laboratories Communication path continuity verification arrangement
GB2181023B (en) * 1985-09-24 1989-04-05 Stc Plc Telecommunications switching system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149038A (en) * 1978-05-15 1979-04-10 Wescom Switching, Inc. Method and apparatus for fault detection in PCM muliplexed system
GB2086191A (en) * 1980-10-07 1982-05-06 Italtel Spa Controlling space-time continuity in dynamic connections of buffer networks for time-division
US4413335A (en) * 1981-11-27 1983-11-01 Gte Automatic Electric Labs Inc. Fault recovery apparatus for a PCM switching network
WO1985001410A1 (fr) * 1983-09-12 1985-03-28 Western Electric Company, Inc. Systeme de commutation double a division temporelle

Also Published As

Publication number Publication date
CN1008049B (zh) 1990-05-16
FI881395A (fi) 1988-03-23
IN168441B (fr) 1991-04-06
JPH01500951A (ja) 1989-03-30
PT85393A (pt) 1988-07-29
KR880702035A (ko) 1988-11-07
GB8710191D0 (en) 1987-06-03
GB2193062B (en) 1990-03-28
GB8618100D0 (en) 1986-09-03
EP0254559A2 (fr) 1988-01-27
DK162688D0 (da) 1988-03-24
CN87106044A (zh) 1988-05-18
DK162688A (da) 1988-05-24
WO1988000786A2 (fr) 1988-01-28
US4858223A (en) 1989-08-15
EP0254559A3 (fr) 1988-05-04
GB2193062A (en) 1988-01-27
FI881395A0 (fi) 1988-03-23

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