DK162688A - Sikkerhedsarrangement til et telekommunikationscentralsystem - Google Patents

Sikkerhedsarrangement til et telekommunikationscentralsystem

Info

Publication number
DK162688A
DK162688A DK162688A DK162688A DK162688A DK 162688 A DK162688 A DK 162688A DK 162688 A DK162688 A DK 162688A DK 162688 A DK162688 A DK 162688A DK 162688 A DK162688 A DK 162688A
Authority
DK
Denmark
Prior art keywords
center system
security arrangement
telecommunication center
telecommunication
security
Prior art date
Application number
DK162688A
Other languages
Danish (da)
English (en)
Other versions
DK162688D0 (da
Inventor
John William Ansell
Geoffrey Chopping
Richard Noel Waters
Original Assignee
Plessey Co Plc
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 filed Critical Plessey Co Plc
Publication of DK162688D0 publication Critical patent/DK162688D0/da
Publication of DK162688A publication Critical patent/DK162688A/da

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)
DK162688A 1986-07-24 1988-03-24 Sikkerhedsarrangement til et telekommunikationscentralsystem DK162688A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868618100A GB8618100D0 (en) 1986-07-24 1986-07-24 Security arrangement
PCT/GB1987/000525 WO1988000786A2 (fr) 1986-07-24 1987-07-22 Dispositif de securite pour un systeme d'echange de telecommunications

Publications (2)

Publication Number Publication Date
DK162688D0 DK162688D0 (da) 1988-03-24
DK162688A true DK162688A (da) 1988-05-24

Family

ID=10601635

Family Applications (1)

Application Number Title Priority Date Filing Date
DK162688A DK162688A (da) 1986-07-24 1988-03-24 Sikkerhedsarrangement til et telekommunikationscentralsystem

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) FI881395A (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
US9456444B2 (en) * 2013-07-17 2016-09-27 Cisco Technology, Inc. OAM and time slot control in a deterministic ARC chain topology network

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI60630C (fi) * 1973-03-19 1982-02-10 Ericsson Telefon Ab L M Foerfarande och apparat foer vaexling av data
FR2233780B1 (fr) * 1973-06-13 1977-05-06 Materiel Telephonique
GB1582456A (en) * 1977-04-02 1981-01-07 Gen Electric Digital telecommunication switching systems
US4149038A (en) * 1978-05-15 1979-04-10 Wescom Switching, Inc. Method and apparatus for fault detection in PCM muliplexed system
IT8003532A0 (it) * 1980-10-07 1980-10-07 Italtel Spa Dispositivo per il controllo della continuita' spazio-temporale dei collegamenti dinamici di una retedi transito per sistemi di telecomunicazioni a divisione di tempo
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
US4413335A (en) * 1981-11-27 1983-11-01 Gte Automatic Electric Labs Inc. Fault recovery apparatus for a PCM switching network
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
US4543651A (en) * 1983-09-12 1985-09-24 At&T Bell Laboratories Duplicated time division switching system
GB2181023B (en) * 1985-09-24 1989-04-05 Stc Plc Telecommunications switching system

Also Published As

Publication number Publication date
IN168441B (fr) 1991-04-06
GB2193062B (en) 1990-03-28
GB2193062A (en) 1988-01-27
US4858223A (en) 1989-08-15
FI881395A0 (fi) 1988-03-23
GB8618100D0 (en) 1986-09-03
EP0254559A2 (fr) 1988-01-27
FI881395A (fi) 1988-03-23
JPH01500951A (ja) 1989-03-30
WO1988000786A3 (fr) 1988-03-24
EP0254559A3 (fr) 1988-05-04
CN1008049B (zh) 1990-05-16
KR880702035A (ko) 1988-11-07
GB8710191D0 (en) 1987-06-03
CN87106044A (zh) 1988-05-18
DK162688D0 (da) 1988-03-24
WO1988000786A2 (fr) 1988-01-28
PT85393A (pt) 1988-07-29

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment
PUP Patent expired