JPS6239921A - 回線切換装置 - Google Patents

回線切換装置

Info

Publication number
JPS6239921A
JPS6239921A JP60179452A JP17945285A JPS6239921A JP S6239921 A JPS6239921 A JP S6239921A JP 60179452 A JP60179452 A JP 60179452A JP 17945285 A JP17945285 A JP 17945285A JP S6239921 A JPS6239921 A JP S6239921A
Authority
JP
Japan
Prior art keywords
line
lines
terminal
switching circuit
loop
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.)
Granted
Application number
JP60179452A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0317417B2 (cg-RX-API-DMAC7.html
Inventor
Satoshi Ikeuchi
聡 池内
Ikuo Taniguchi
谷口　郁夫
Kenji Yoshimoto
賢治 吉本
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
Priority to JP60179452A priority Critical patent/JPS6239921A/ja
Priority to CA000515537A priority patent/CA1287098C/en
Priority to NZ217150A priority patent/NZ217150A/xx
Priority to AU61065/86A priority patent/AU572735B2/en
Priority to EP86111279A priority patent/EP0214497B1/en
Priority to DE8686111279T priority patent/DE3675856D1/de
Priority to US06/896,954 priority patent/US4733320A/en
Publication of JPS6239921A publication Critical patent/JPS6239921A/ja
Publication of JPH0317417B2 publication Critical patent/JPH0317417B2/ja
Priority to SG46192A priority patent/SG46192G/en
Priority to HK564/92A priority patent/HK56492A/xx
Granted 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)
JP60179452A 1985-08-16 1985-08-16 回線切換装置 Granted JPS6239921A (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP60179452A JPS6239921A (ja) 1985-08-16 1985-08-16 回線切換装置
CA000515537A CA1287098C (en) 1985-08-16 1986-08-07 Line protection switch equipment
NZ217150A NZ217150A (en) 1985-08-16 1986-08-08 Line switching equipment - standby to working line
AU61065/86A AU572735B2 (en) 1985-08-16 1986-08-11 Loop line protective switching
DE8686111279T DE3675856D1 (de) 1985-08-16 1986-08-14 Einrichtung zur ersatzleitungsumschaltung.
EP86111279A EP0214497B1 (en) 1985-08-16 1986-08-14 Line protection switch equipment
US06/896,954 US4733320A (en) 1985-08-16 1986-08-15 Line protection switch equipment
SG46192A SG46192G (en) 1985-08-16 1992-04-24 Line protection switch equipment
HK564/92A HK56492A (en) 1985-08-16 1992-07-30 Line protection switch equipment

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 (2)

Publication Number Publication Date
JPS6239921A true JPS6239921A (ja) 1987-02-20
JPH0317417B2 JPH0317417B2 (cg-RX-API-DMAC7.html) 1991-03-08

Family

ID=16066104

Family Applications (1)

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

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
AU572735B2 (en) 1988-05-12
CA1287098C (en) 1991-07-30
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

Similar Documents

Publication Publication Date Title
JPS6239921A (ja) 回線切換装置
CA1294683C (en) Process and a system for technically secure transmission of serial data between secure computers, preferably working in two channel mode by the use of a double-ring bus system
JPH03132222A (ja) 信号分岐方法
JPH06209284A (ja) 光スイッチングモジュール
JPS6142978B2 (cg-RX-API-DMAC7.html)
JPH0342930A (ja) 回線切り替え装置
JPH06164613A (ja) 光ループネットワーク
JPH07336296A (ja) 光伝送方式
JPS61127247A (ja) 通信システムの伝送路切替方式
JP2693752B2 (ja) データ伝送方式
JP2800018B2 (ja) ベースバンドネットワークシステム
JPH10107734A (ja) 光送受信システムにおける無瞬断切替方法
JP2636569B2 (ja) 回線切替装置
JP2507609B2 (ja) Ｉｓｄｎ加入者インタフェ―ス装置
JPH10327215A (ja) 監視制御システム
JPS585045A (ja) 光通信装置
JPS63173429A (ja) 回線監視方式
JPH01141424A (ja) 光ループ・ネットワークシステム
JPS58121852A (ja) ル−プ形デ−タ伝送方式
JPS63180242A (ja) ル−プネツトワ−ク装置
JPH1198075A (ja) 伝送路監視装置
JPH01215147A (ja) 監視データ転送回線の２重化方式
JPS60182242A (ja) ル−プ通信システム構成方法
JPS62150952A (ja) ２重化ノ−ド装置
JPS6148249A (ja) 回線切替装置