CA1287098C - Line protection switch equipment - Google Patents

Line protection switch equipment

Info

Publication number
CA1287098C
CA1287098C CA000515537A CA515537A CA1287098C CA 1287098 C CA1287098 C CA 1287098C CA 000515537 A CA000515537 A CA 000515537A CA 515537 A CA515537 A CA 515537A CA 1287098 C CA1287098 C CA 1287098C
Authority
CA
Canada
Prior art keywords
line
input
output
terminal
protection
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.)
Expired - Lifetime
Application number
CA000515537A
Other languages
English (en)
French (fr)
Inventor
Satoshi Ikeuchi
Ikuo Taniguchi
Kenji Yoshimoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of CA1287098C publication Critical patent/CA1287098C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
CA000515537A 1985-08-16 1986-08-07 Line protection switch equipment Expired - Lifetime CA1287098C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60179452A JPS6239921A (ja) 1985-08-16 1985-08-16 回線切換装置
JP60-179452 1985-08-16

Publications (1)

Publication Number Publication Date
CA1287098C true CA1287098C (en) 1991-07-30

Family

ID=16066104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000515537A Expired - Lifetime CA1287098C (en) 1985-08-16 1986-08-07 Line protection switch equipment

Country Status (9)

Country Link
US (1) US4733320A (cg-RX-API-DMAC7.html)
EP (1) EP0214497B1 (cg-RX-API-DMAC7.html)
JP (1) JPS6239921A (cg-RX-API-DMAC7.html)
AU (1) AU572735B2 (cg-RX-API-DMAC7.html)
CA (1) CA1287098C (cg-RX-API-DMAC7.html)
DE (1) DE3675856D1 (cg-RX-API-DMAC7.html)
HK (1) HK56492A (cg-RX-API-DMAC7.html)
NZ (1) NZ217150A (cg-RX-API-DMAC7.html)
SG (1) SG46192G (cg-RX-API-DMAC7.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8813958D0 (en) * 1988-06-13 1988-07-20 Plessey Telecomm Data path protection
JP3023705B2 (ja) * 1990-12-20 2000-03-21 富士通株式会社 予備チャンネル切替え装置および方法
JPH0786988A (ja) * 1993-09-16 1995-03-31 Fujitsu Ltd Ｐｃａ伝送装置及びｐｃａ伝送方法
US5594581A (en) * 1993-12-29 1997-01-14 Lucent Technologies Inc. Low loss optical transmission/monitoring path selection in redundant equipment terminals
JPH07264156A (ja) * 1994-03-18 1995-10-13 Fujitsu Ltd 同期通信網の障害検出方式
KR100301575B1 (ko) * 1995-12-22 2001-11-22 박종섭 신호 전송장치
US7266841B2 (en) * 2000-12-22 2007-09-04 Tyco Electronics Corporation Security and communications module
EP2626002A4 (en) * 2010-10-08 2015-09-30 Olympus Medical Systems Corp IMAGING DEVICE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576951A (en) * 1967-12-09 1971-05-04 Nippon Electric Co Calling subscriber identification system
US3864533A (en) * 1973-06-01 1975-02-04 Vidar Corp Automatic line transfer system and method for a communications system
US4061989A (en) * 1975-09-02 1977-12-06 Trw Inc. Redundancy switching system
US4007339A (en) * 1975-11-28 1977-02-08 Bell Telephone Laboratories, Incorporated Arrangement serving operator assistance calls requiring routing back to originating offices
DE3360779D1 (de) * 1982-06-30 1985-10-17 Bbc Brown Boveri & Cie Installation de commutation
JPS6038950A (ja) * 1983-08-11 1985-02-28 Sumitomo Electric Ind Ltd 伝送路制御方式

Also Published As

Publication number Publication date
NZ217150A (en) 1989-08-29
JPS6239921A (ja) 1987-02-20
AU572735B2 (en) 1988-05-12
SG46192G (en) 1992-06-12
HK56492A (en) 1992-08-07
US4733320A (en) 1988-03-22
AU6106586A (en) 1987-02-19
EP0214497A3 (en) 1988-07-13
DE3675856D1 (de) 1991-01-10
EP0214497A2 (en) 1987-03-18
EP0214497B1 (en) 1990-11-28
JPH0317417B2 (cg-RX-API-DMAC7.html) 1991-03-08

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Legal Events

Date Code Title Description
MKLA Lapsed
MKLA Lapsed

Effective date: 20020730