DE3676925D1 - Uebertragungssystem mit einer schutzumschaltung unter benuetzung von kanalkennzeichnungen und individuellen wahlschaltern. - Google Patents

Uebertragungssystem mit einer schutzumschaltung unter benuetzung von kanalkennzeichnungen und individuellen wahlschaltern.

Info

Publication number
DE3676925D1
DE3676925D1 DE8686304932T DE3676925T DE3676925D1 DE 3676925 D1 DE3676925 D1 DE 3676925D1 DE 8686304932 T DE8686304932 T DE 8686304932T DE 3676925 T DE3676925 T DE 3676925T DE 3676925 D1 DE3676925 D1 DE 3676925D1
Authority
DE
Germany
Prior art keywords
transmission system
selector switches
protective switching
individual selector
markings
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
DE8686304932T
Other languages
English (en)
Inventor
David Ian Reid
John Charles Ellson
Malcolm Charles Betts
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25670756&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3676925(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CA000487813A external-priority patent/CA1237502A/en
Priority claimed from CA000487814A external-priority patent/CA1255770A/en
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of DE3676925D1 publication Critical patent/DE3676925D1/de
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)
  • Time-Division Multiplex Systems (AREA)
DE8686304932T 1985-07-30 1986-06-25 Uebertragungssystem mit einer schutzumschaltung unter benuetzung von kanalkennzeichnungen und individuellen wahlschaltern. Expired - Lifetime DE3676925D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000487813A CA1237502A (en) 1985-07-30 1985-07-30 Communications system with protection switching and channel identities
CA000487814A CA1255770A (en) 1985-07-30 1985-07-30 Communications system with protection switching using individual selectors

Publications (1)

Publication Number Publication Date
DE3676925D1 true DE3676925D1 (de) 1991-02-21

Family

ID=25670756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686304932T Expired - Lifetime DE3676925D1 (de) 1985-07-30 1986-06-25 Uebertragungssystem mit einer schutzumschaltung unter benuetzung von kanalkennzeichnungen und individuellen wahlschaltern.

Country Status (3)

Country Link
US (1) US4646286A (de)
EP (1) EP0217490B1 (de)
DE (1) DE3676925D1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642141A1 (de) * 1986-12-10 1988-06-16 Philips Patentverwaltung Verfahren zur dezentralen netzersatzschaltung
US4761647A (en) * 1987-04-06 1988-08-02 Intel Corporation Eprom controlled tri-port transceiver
US5029158A (en) * 1987-07-23 1991-07-02 Northern Telecom Limited Protection switching in a multi-channel communications system
JPH01198834A (ja) * 1988-02-03 1989-08-10 Fujitsu Ltd 回線切替装置
US4939736A (en) * 1988-09-22 1990-07-03 At&T Bell Laboratories Protection against loss or corruption of data upon switchover of a replicated system
US5003531A (en) * 1989-08-11 1991-03-26 Infotron Systems Corporation Survivable network using reverse protection ring
CA2054443C (en) * 1990-10-30 1995-11-07 Kazuo Yamane Switching system of optical transmission lines for protecting from trouble
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
JPH0831856B2 (ja) * 1991-08-16 1996-03-27 インターナショナル・ビジネス・マシーンズ・コーポレイション 故障信号搬送ラインを予備信号搬送ラインで置き換える装置及び方法
US5365510A (en) * 1992-04-09 1994-11-15 Northern Telecom Limited Communications system with a single protection loop
DE4215287A1 (de) * 1992-05-09 1993-11-11 Aeg Mobile Communication Verfahren zur automatischen Kanalzuteilung in einem Funknetz
US5485465A (en) * 1992-05-20 1996-01-16 The Whitaker Corporation Redundancy control for a broadcast data transmission system
US5479608A (en) * 1992-07-17 1995-12-26 Alcatel Network Systems, Inc. Group facility protection in a digital telecommunications system
GB2285192A (en) * 1993-12-07 1995-06-28 Northern Telecom Ltd Network surveillance
US5594581A (en) * 1993-12-29 1997-01-14 Lucent Technologies Inc. Low loss optical transmission/monitoring path selection in redundant equipment terminals
GB2294613B (en) * 1994-10-26 1998-12-23 Northern Telecom Ltd Tributary protection system
EP0804001B1 (de) 1996-04-23 2005-03-09 Hitachi, Ltd. Selbstheilendes Netzwerk, und Umschaltungsverfahren für Übertragungsleitungen und Übertragungseinrichtung dafür
SE507501C2 (sv) * 1996-10-08 1998-06-15 Ericsson Telefon Ab L M Anordning och förfarande för att öka tillförlitligheten i ett optiskt nätverk
US6154296A (en) * 1997-11-05 2000-11-28 Northern Telecom Limited Telecommunications network having shared protect capacity architecture
US6307652B1 (en) 1998-04-28 2001-10-23 Weed Instrument Company, Incorporated Fault tolerant optical communication apparatus and method
US6434589B1 (en) 1998-06-19 2002-08-13 Tellabs Operations, Inc. Telecommunications job scheduling
US6188702B1 (en) * 1998-11-17 2001-02-13 Inrange Technologies Corporation High speed linking module
US6594232B1 (en) 1999-06-02 2003-07-15 Marconi Communications, Inc. Transmitter-based path protection switching in a ring network
US6724781B1 (en) 1999-08-23 2004-04-20 Marconi Communications, Inc. System and method for packet transport in a ring network
IL134047A (en) * 2000-01-14 2004-02-08 Lightscape Networks Ltd Method for selecting the type of communication channels in a multi-layered network and system using same
US20020141332A1 (en) * 2000-12-11 2002-10-03 Jeff Barnard Failover apparatus and method for an asynchronous data communication network
IL143658A (en) * 2001-06-10 2006-08-01 Eci Telecom Ltd Device, system and method for protecting communication
US7394758B2 (en) * 2001-09-04 2008-07-01 Rumi Sheryar Gonda Method for supporting SDH/SONET APS on Ethernet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864533A (en) 1973-06-01 1975-02-04 Vidar Corp Automatic line transfer system and method for a communications system
DE2753420C3 (de) * 1977-11-30 1980-06-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zur Ersatzschaltung von Betriebssystemen für digitale Signale
FR2473819B1 (fr) * 1980-01-11 1985-12-13 Telecommunications Sa Procede et systeme de securisation d'une artere de transmission numerique
US4412323A (en) * 1980-06-03 1983-10-25 Rockwell International Corporation Muldem with improved monitoring and control system
US4376999A (en) * 1980-06-03 1983-03-15 Rockwell International Corporation Muldem with monitor testing on-line and off-line paths
JPS5726955A (en) * 1980-07-25 1982-02-13 Hitachi Ltd Backup control system
JPS57135530A (en) * 1981-02-16 1982-08-21 Yamatake Honeywell Co Ltd Communication control system
US4382294A (en) * 1981-10-26 1983-05-03 Bell Telephone Laboratories, Incorporated Telephone switching control arrangement
US4543651A (en) * 1983-09-12 1985-09-24 At&T Bell Laboratories Duplicated time division switching system
DE3474893D1 (en) * 1983-11-11 1988-12-01 Fujitsu Ltd Protection switching system for carrier transmission line
US4598399A (en) * 1984-11-20 1986-07-01 Rockwell International Corporation Multichannel multisite signal protection channel switching apparatus

Also Published As

Publication number Publication date
EP0217490B1 (de) 1991-01-16
US4646286A (en) 1987-02-24
EP0217490A1 (de) 1987-04-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition