KR880702035A - 전기통신 교환시스템용 보안장치 - Google Patents

전기통신 교환시스템용 보안장치

Info

Publication number
KR880702035A
KR880702035A KR1019880700323A KR880700323A KR880702035A KR 880702035 A KR880702035 A KR 880702035A KR 1019880700323 A KR1019880700323 A KR 1019880700323A KR 880700323 A KR880700323 A KR 880700323A KR 880702035 A KR880702035 A KR 880702035A
Authority
KR
South Korea
Prior art keywords
security device
exchange system
telecommunication exchange
telecommunication
security
Prior art date
Application number
KR1019880700323A
Other languages
English (en)
Inventor
윌리암 안셀 존
초핑 조프리
노엘 워터스 리차드
Original Assignee
더 플리세이 캄파니 퍼블릭 리미티드 캄파니
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 더 플리세이 캄파니 퍼블릭 리미티드 캄파니 filed Critical 더 플리세이 캄파니 퍼블릭 리미티드 캄파니
Publication of KR880702035A publication Critical patent/KR880702035A/ko

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)
KR1019880700323A 1986-07-24 1988-03-24 전기통신 교환시스템용 보안장치 KR880702035A (ko)

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 (en) 1986-07-24 1987-07-22 Security arrangement for a telecommunications exchange system

Publications (1)

Publication Number Publication Date
KR880702035A true KR880702035A (ko) 1988-11-07

Family

ID=10601635

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880700323A KR880702035A (ko) 1986-07-24 1988-03-24 전기통신 교환시스템용 보안장치

Country Status (11)

Country Link
US (1) US4858223A (ko)
EP (1) EP0254559A3 (ko)
JP (1) JPH01500951A (ko)
KR (1) KR880702035A (ko)
CN (1) CN1008049B (ko)
DK (1) DK162688A (ko)
FI (1) FI881395A (ko)
GB (2) GB8618100D0 (ko)
IN (1) IN168441B (ko)
PT (1) PT85393A (ko)
WO (1) WO1988000786A2 (ko)

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 (en) * 2007-11-30 2009-06-11 University Of South Florida Trans-endoscopic hydraulic balloon apparatus
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
BE812503A (fr) * 1973-03-19 1974-07-15 Procede et appareil de traitement de donnees
FR2233780B1 (ko) * 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
IT1133349B (it) * 1980-10-07 1986-07-09 Italtel Spa Rete di transito perfezionata per sistemi di telecomunicazioni a divisione di tempo
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
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
GB2193062B (en) 1990-03-28
EP0254559A2 (en) 1988-01-27
GB8710191D0 (en) 1987-06-03
US4858223A (en) 1989-08-15
FI881395A0 (fi) 1988-03-23
DK162688A (da) 1988-05-24
JPH01500951A (ja) 1989-03-30
IN168441B (ko) 1991-04-06
DK162688D0 (da) 1988-03-24
WO1988000786A2 (en) 1988-01-28
PT85393A (pt) 1988-07-29
GB2193062A (en) 1988-01-27
WO1988000786A3 (en) 1988-03-24
GB8618100D0 (en) 1986-09-03
EP0254559A3 (en) 1988-05-04
CN1008049B (zh) 1990-05-16
CN87106044A (zh) 1988-05-18
FI881395A (fi) 1988-03-23

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application