DE3377609D1 - Loop transmission system and method of controlling its loop-back condition - Google Patents
Loop transmission system and method of controlling its loop-back conditionInfo
- Publication number
- DE3377609D1 DE3377609D1 DE8383304772T DE3377609T DE3377609D1 DE 3377609 D1 DE3377609 D1 DE 3377609D1 DE 8383304772 T DE8383304772 T DE 8383304772T DE 3377609 T DE3377609 T DE 3377609T DE 3377609 D1 DE3377609 D1 DE 3377609D1
- Authority
- DE
- Germany
- Prior art keywords
- loop
- controlling
- transmission system
- back condition
- loop transmission
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
-
- 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
- H04B1/745—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 using by-passing or self-healing methods
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57150480A JPS5940739A (ja) | 1982-08-30 | 1982-08-30 | ル−プパツク制御方式 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3377609D1 true DE3377609D1 (en) | 1988-09-08 |
Family
ID=15497801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383304772T Expired DE3377609D1 (en) | 1982-08-30 | 1983-08-18 | Loop transmission system and method of controlling its loop-back condition |
Country Status (9)
Country | Link |
---|---|
US (1) | US4542496A (de) |
EP (1) | EP0102222B1 (de) |
JP (1) | JPS5940739A (de) |
KR (1) | KR860002213B1 (de) |
AU (1) | AU542693B2 (de) |
BR (1) | BR8304681A (de) |
CA (1) | CA1196976A (de) |
DE (1) | DE3377609D1 (de) |
ES (1) | ES8501937A1 (de) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0614643B2 (ja) * | 1983-12-05 | 1994-02-23 | 株式会社日立製作所 | ル−プ式デ−タ伝送システムの障害回復検出方法 |
JPS60142647A (ja) * | 1983-12-29 | 1985-07-27 | Hitachi Ltd | マルチドロツプ接続のデ−タ収集装置 |
US4633246A (en) * | 1984-01-09 | 1986-12-30 | Fiberlan, Inc. | Time divison multiplex ring |
DE3411013A1 (de) * | 1984-03-24 | 1985-09-26 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Nachrichtenuebertragungssystem |
JPH0630516B2 (ja) * | 1984-07-13 | 1994-04-20 | 富士通株式会社 | 自動障害排除方式 |
US4683563A (en) * | 1984-10-11 | 1987-07-28 | American Telephone And Telegraph Company, At&T Bell Laboratories | Data communication network |
US4777330A (en) * | 1985-02-15 | 1988-10-11 | Hitachi, Ltd. | Network system diagnosis system |
GB2172175B (en) * | 1985-02-15 | 1989-04-05 | Hitachi Ltd | Method for controlling ring network |
IT1199859B (it) * | 1985-03-06 | 1989-01-05 | Cselt Centro Studi Lab Telecom | Rete locale integrata ad alta velo-cita'riconfigurabile |
JPS62176345A (ja) * | 1986-01-30 | 1987-08-03 | Mitsubishi Electric Corp | 2重系ル−プ形伝送制御装置 |
US4719625A (en) * | 1986-03-24 | 1988-01-12 | Unisys Corporation | Method of recovering from transmission errors in a local area network by transmitting and receiving silence on all network ports |
US5049871A (en) * | 1987-01-20 | 1991-09-17 | American Magnetics Corporation | Loop communication system |
DE3702591A1 (de) * | 1987-01-29 | 1988-08-11 | Sonnenschein Accumulatoren | Schaltung zur laufenden ueberpruefung der qualitaet einer mehrzelligen batterie |
JPH0752886B2 (ja) * | 1987-12-19 | 1995-06-05 | 富士通株式会社 | ループ型ネットワークの構成方法 |
US4835763A (en) * | 1988-02-04 | 1989-05-30 | Bell Communications Research, Inc. | Survivable ring network |
JPH02121547A (ja) * | 1988-10-31 | 1990-05-09 | Toshiba Corp | ローカルエリアネットワーク |
JP2515588B2 (ja) * | 1989-03-23 | 1996-07-10 | 武夫 有馬 | 二系統の同期リングカウンタ回路を用いた制御信号方式 |
US5113398A (en) * | 1989-06-01 | 1992-05-12 | Shackleton System Drives Corporation | Self-healing data network and network node controller |
JP2713605B2 (ja) * | 1989-06-17 | 1998-02-16 | 富士通株式会社 | リングネットワーク切替制御方式 |
US5003531A (en) * | 1989-08-11 | 1991-03-26 | Infotron Systems Corporation | Survivable network using reverse protection ring |
US5081624A (en) * | 1989-12-29 | 1992-01-14 | International Business Machines Corporation | Fault-tolerant serial attachment of remote high-speed i/o busses |
US5199025A (en) * | 1990-04-20 | 1993-03-30 | Matsushita Electric Industrial Co., Ltd. | Loop back method for loop type lan transmission line |
JP2784080B2 (ja) * | 1990-05-09 | 1998-08-06 | 富士通株式会社 | リングネットワーク及びその障害復旧方法並びにリングネットワークに用いられるノード |
JP2578704B2 (ja) * | 1991-03-26 | 1997-02-05 | 日本電信電話株式会社 | リング伝送網のループバック方法およびリング伝送装置 |
IT1251119B (it) * | 1991-07-26 | 1995-05-04 | Rete radiomobile isofrequenziale con dorsale di collegamento realizzata mediante un sistema di drop/insert. | |
JP3140531B2 (ja) * | 1992-02-04 | 2001-03-05 | 能美防災株式会社 | 火災報知設備 |
JP2829189B2 (ja) * | 1992-04-15 | 1998-11-25 | 富士通株式会社 | 海底ケーブル通信システムの給電監視支援システム。 |
US5485465A (en) * | 1992-05-20 | 1996-01-16 | The Whitaker Corporation | Redundancy control for a broadcast data transmission system |
JPH0795225A (ja) * | 1993-09-20 | 1995-04-07 | Fujitsu Ltd | 双方向リングネットワーク制御方式 |
JP2601197B2 (ja) * | 1994-06-22 | 1997-04-16 | 日本電気株式会社 | パス設定制御システム |
US6631018B1 (en) | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
GB2348782B (en) * | 1999-04-06 | 2004-03-17 | Motorola Ltd | A fault location system and method |
JP3477709B2 (ja) * | 1999-10-29 | 2003-12-10 | オムロン株式会社 | センサシステム |
US6622258B1 (en) * | 2000-04-10 | 2003-09-16 | Appian Communications, Inc. | Data protection in a ring network |
DE10042380C1 (de) * | 2000-08-29 | 2002-02-21 | Infineon Technologies Ag | Basiselement für eine Multiplexerstruktur sowie entsprechende Multiplexerstruktur |
DE102006004339A1 (de) * | 2006-01-30 | 2007-08-02 | Robert Bosch Gmbh | Redundantes Kommunikationsnetzwerk |
DE102006055889B3 (de) * | 2006-11-27 | 2008-05-29 | Beckhoff Automation Gmbh | Kommunikationssystem mit einer Master-Slave-Struktur |
DE102006055887A1 (de) * | 2006-11-27 | 2008-05-29 | Beckhoff Automation Gmbh | Kommunikationssystem mit einer Master-Slave-Struktur |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3569632A (en) * | 1967-08-15 | 1971-03-09 | Ultronic Systems Corp | Synchronous digital multiplex communication system including switchover |
GB1229149A (de) * | 1969-07-28 | 1971-04-21 | ||
US3859468A (en) * | 1973-07-25 | 1975-01-07 | Bell Telephone Labor Inc | Redundant data transmission arrangement |
JPS5368046A (en) * | 1976-11-30 | 1978-06-17 | Toshiba Corp | Loop-type data highway system |
FR2472898B1 (fr) * | 1979-12-27 | 1987-01-09 | Jeumont Schneider | Reseau de transmission en boucle double |
JPS5797754A (en) * | 1980-12-10 | 1982-06-17 | Fujitsu Ltd | Loop reconstituting system for fault of dual loop transmission network |
JPS57109439A (en) * | 1980-12-26 | 1982-07-07 | Fujitsu Ltd | Optical data highway device |
JPS58138146A (ja) * | 1982-02-10 | 1983-08-16 | Nippon Telegr & Teleph Corp <Ntt> | ル−プ伝送システムの折り返し制御方法 |
-
1982
- 1982-08-30 JP JP57150480A patent/JPS5940739A/ja active Pending
-
1983
- 1983-08-17 CA CA000434837A patent/CA1196976A/en not_active Expired
- 1983-08-18 EP EP83304772A patent/EP0102222B1/de not_active Expired
- 1983-08-18 DE DE8383304772T patent/DE3377609D1/de not_active Expired
- 1983-08-19 AU AU18141/83A patent/AU542693B2/en not_active Ceased
- 1983-08-22 US US06/525,464 patent/US4542496A/en not_active Expired - Fee Related
- 1983-08-24 KR KR1019830003963A patent/KR860002213B1/ko not_active IP Right Cessation
- 1983-08-29 BR BR8304681A patent/BR8304681A/pt not_active IP Right Cessation
- 1983-08-29 ES ES525201A patent/ES8501937A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES525201A0 (es) | 1984-12-01 |
EP0102222A3 (en) | 1986-01-22 |
BR8304681A (pt) | 1984-04-10 |
ES8501937A1 (es) | 1984-12-01 |
JPS5940739A (ja) | 1984-03-06 |
EP0102222A2 (de) | 1984-03-07 |
AU1814183A (en) | 1984-03-08 |
AU542693B2 (en) | 1985-03-07 |
EP0102222B1 (de) | 1988-08-03 |
CA1196976A (en) | 1985-11-19 |
KR840006114A (ko) | 1984-11-21 |
KR860002213B1 (ko) | 1986-12-31 |
US4542496A (en) | 1985-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |