HK56492A - Line protection switch equipment - Google Patents

Line protection switch equipment

Info

Publication number
HK56492A
HK56492A HK564/92A HK56492A HK56492A HK 56492 A HK56492 A HK 56492A HK 564/92 A HK564/92 A HK 564/92A HK 56492 A HK56492 A HK 56492A HK 56492 A HK56492 A HK 56492A
Authority
HK
Hong Kong
Prior art keywords
protection switch
line protection
switch equipment
equipment
line
Prior art date
Application number
HK564/92A
Other languages
English (en)
Inventor
Satoshi Ikeuchi
Ikuo Taniguchi
Kenji Yoshimoto
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
Publication of HK56492A publication Critical patent/HK56492A/xx

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)
HK564/92A 1985-08-16 1992-07-30 Line protection switch equipment HK56492A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
HK56492A true HK56492A (en) 1992-08-07

Family

ID=16066104

Family Applications (1)

Application Number Title Priority Date Filing Date
HK564/92A HK56492A (en) 1985-08-16 1992-07-30 Line protection switch equipment

Country Status (9)

Country Link
US (1) US4733320A (xx)
EP (1) EP0214497B1 (xx)
JP (1) JPS6239921A (xx)
AU (1) AU572735B2 (xx)
CA (1) CA1287098C (xx)
DE (1) DE3675856D1 (xx)
HK (1) HK56492A (xx)
NZ (1) NZ217150A (xx)
SG (1) SG46192G (xx)

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
WO2012046856A1 (ja) * 2010-10-08 2012-04-12 オリンパスメディカルシステムズ株式会社 撮像装置

Family Cites Families (7)

* 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
JPS58145242A (ja) * 1982-02-24 1983-08-30 Nippon Telegr & Teleph Corp <Ntt> 現用機器と予備用機器から成るシステム
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
EP0214497A2 (en) 1987-03-18
EP0214497A3 (en) 1988-07-13
DE3675856D1 (de) 1991-01-10
JPS6239921A (ja) 1987-02-20
CA1287098C (en) 1991-07-30
AU6106586A (en) 1987-02-19
US4733320A (en) 1988-03-22
JPH0317417B2 (xx) 1991-03-08
SG46192G (en) 1992-06-12
EP0214497B1 (en) 1990-11-28
NZ217150A (en) 1989-08-29
AU572735B2 (en) 1988-05-12

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