FI972666A0 - Optinen syöttö-pudotusmultiplekseri - Google Patents

Optinen syöttö-pudotusmultiplekseri

Info

Publication number
FI972666A0
FI972666A0 FI972666A FI972666A FI972666A0 FI 972666 A0 FI972666 A0 FI 972666A0 FI 972666 A FI972666 A FI 972666A FI 972666 A FI972666 A FI 972666A FI 972666 A0 FI972666 A0 FI 972666A0
Authority
FI
Finland
Prior art keywords
subnode
pct
optical
alarm signal
state
Prior art date
Application number
FI972666A
Other languages
English (en)
Swedish (sv)
Other versions
FI972666A (fi
FI112136B (fi
Inventor
Erland Almstroem
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI972666A0 publication Critical patent/FI972666A0/fi
Publication of FI972666A publication Critical patent/FI972666A/fi
Application granted granted Critical
Publication of FI112136B publication Critical patent/FI112136B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0009—Construction using wavelength filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0043—Fault tolerance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Eyeglasses (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
FI972666A 1994-12-21 1997-06-19 Optinen syöttö-pudotusmultiplekseri FI112136B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9404446A SE514658C2 (sv) 1994-12-21 1994-12-21 Nodarkitektur för tillämpning av optisk optimering (OADM)
SE9404446 1994-12-21
SE9501490 1995-12-11
PCT/SE1995/001490 WO1996019884A1 (en) 1994-12-21 1995-12-11 Optical add drop multiplex (oadm)

Publications (3)

Publication Number Publication Date
FI972666A0 true FI972666A0 (fi) 1997-06-19
FI972666A FI972666A (fi) 1997-06-19
FI112136B FI112136B (fi) 2003-10-31

Family

ID=20396414

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972666A FI112136B (fi) 1994-12-21 1997-06-19 Optinen syöttö-pudotusmultiplekseri

Country Status (12)

Country Link
US (1) US6097516A (fi)
EP (1) EP0799536B1 (fi)
JP (1) JPH10511821A (fi)
KR (1) KR100333253B1 (fi)
CN (1) CN1101626C (fi)
AT (1) ATE256358T1 (fi)
AU (1) AU697436B2 (fi)
CA (1) CA2207553A1 (fi)
DE (1) DE69532296T2 (fi)
FI (1) FI112136B (fi)
SE (1) SE514658C2 (fi)
WO (1) WO1996019884A1 (fi)

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* Cited by examiner, † Cited by third party
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IT1283372B1 (it) * 1996-07-31 1998-04-17 Pirelli Cavi S P A Ora Pirelli Dispositivo per l'inserimento e l'estrazione di segnali ottici
JPH10126350A (ja) * 1996-10-15 1998-05-15 Nec Corp 光ネットワーク、光分岐挿入ノードおよび障害回復方式
SE9702685D0 (sv) 1997-07-11 1997-07-11 Ericsson Telefon Ab L M Self-healing ring network and a method for fault detection and rectifying
JPH1198077A (ja) * 1997-09-16 1999-04-09 Nec Corp 光波ネットワークシステム
US6396852B1 (en) * 1997-11-18 2002-05-28 Jane Marie Simmons Ring bundling in the design of rings for telecommunications networks
US6020986A (en) * 1997-11-21 2000-02-01 Jds Uniphase Corporation Programmable add-drop module for use in an optical circuit
US5974207A (en) * 1997-12-23 1999-10-26 Lucent Technologies, Inc. Article comprising a wavelength-selective add-drop multiplexer
US6400476B1 (en) 1997-12-31 2002-06-04 Cisco Photonics Italy S.R.L. Method and apparatus for transparent optical communication with two-fiber bidirectional ring with autoprotection and management of low priority traffic
EP1030480A3 (en) * 1999-02-19 2002-06-12 JDS Uniphase Inc. Configurable optical circuit
GB2347809B (en) 1999-03-12 2001-06-20 Marconi Comm Ltd Signal transmission system
US8554076B1 (en) * 1999-10-04 2013-10-08 At&T Intellectual Property Ii, L.P. Methods and systems for constructing optical networks
US20010038473A1 (en) * 2000-03-10 2001-11-08 Ming-Jun Li Devices and methods for controlling protection switching in an optical channel shared protection ring
US6288812B1 (en) 2000-11-03 2001-09-11 Seneca Networks Bidirectional WDM optical communication network with optical bridge between bidirectional optical waveguides
US20020159392A1 (en) * 2001-04-25 2002-10-31 Adc Telecommunications Israel Ltd. Simplified ATM ring protection for access networks
IL143368A (en) * 2001-05-24 2006-07-05 Shlomo Orbach Multiply up and down optical signals
US7272307B2 (en) 2001-05-25 2007-09-18 Tellabs Operations, Inc. Virtual protection channel for fiber optic ring network
CA2353307A1 (fr) 2001-07-13 2003-01-13 Carmen Parent Appareil et procede pour le traitement des effluents gazeux
CN100346588C (zh) * 2001-10-29 2007-10-31 上海贝尔有限公司 用于波分复用光网的双纤双向通道/复用段倒换环系统
IL146822A0 (en) 2001-11-29 2002-07-25 Lightscape Networks Ltd Method and device for expanding communication networks
CA2415598A1 (en) 2002-01-11 2003-07-11 Nec Corporation Multiplex communication system and method
CA2405635A1 (en) 2002-09-27 2004-03-27 C02 Solution Inc. A process and a plant for the production of useful carbonated species and for the recycling of carbon dioxide emissions from power plants
JP2005352202A (ja) * 2004-06-10 2005-12-22 Sumitomo Electric Ind Ltd 光回路、光合波器及び光分波器
US20050281295A1 (en) * 2004-06-16 2005-12-22 Fishman Daniel A Optical add/drop multiplexer having an alternated channel configuration
US7286763B2 (en) * 2004-06-16 2007-10-23 Lucent Technologies Inc. Optical add/drop multiplexer having a banded channel configuration
US8683044B2 (en) 2005-03-16 2014-03-25 Vonage Network Llc Third party call control application program interface
JP4855209B2 (ja) * 2006-10-19 2012-01-18 富士通株式会社 光伝送装置
EP2243258A1 (en) 2007-12-21 2010-10-27 Telecom Italia S.p.A. Protecting an ethernet network having a ring architecture
EP3051759A4 (en) * 2013-09-26 2017-06-07 Nec Corporation Optical reception device, optical transmission device, optical communication system, optical communication method, and storage medium with program stored thereon

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GB1229149A (fi) * 1969-07-28 1971-04-21
US4190821A (en) * 1978-10-02 1980-02-26 Burroughs Corporation Self-healing loop communications system
US4704713A (en) * 1985-12-26 1987-11-03 Bell Communications Research, Inc. Optical ring network
JPH0695688B2 (ja) * 1986-08-26 1994-11-24 日本電気株式会社 ル−プバック制御装置
US5229875A (en) * 1989-05-30 1993-07-20 Glista Andrew S Fault-tolerant fiber optic coupler/repeater for use in high speed data transmission and the like
US4797879A (en) * 1987-06-05 1989-01-10 American Telephone And Telegraph Company At&T Bell Laboratories Packet switched interconnection protocols for a star configured optical lan
BR8901185A (pt) * 1989-03-09 1990-10-16 Brasil Compressores Sa Sistema de descarga para compressor rotativo de pistao rolante
US5185736A (en) * 1989-05-12 1993-02-09 Alcatel Na Network Systems Corp. Synchronous optical transmission system
US5208692A (en) * 1989-06-29 1993-05-04 Digital Equipment Corporation High bandwidth network based on wavelength division multiplexing
US5003531A (en) * 1989-08-11 1991-03-26 Infotron Systems Corporation Survivable network using reverse protection ring
SE469149B (sv) * 1990-12-07 1993-05-17 Ellemtel Utvecklings Ab Optisk vaeljare, optisk korskopplare och saett att omkoppla grupper av optiska signaler
GB9202666D0 (en) * 1992-02-07 1992-03-25 Madge Networks Ltd Communication system
US5278824A (en) * 1992-06-02 1994-01-11 At&T Bell Laboratories Dual hubbing in a bidirectional line-switched ring transmission system
US5442623A (en) * 1992-08-17 1995-08-15 Bell Communications Research, Inc. Passive protected self healing ring network
US5335104A (en) * 1992-10-22 1994-08-02 Laser Precision Corp. Method of detecting breaks in multi-drop feeder systems
JP3347382B2 (ja) * 1993-02-23 2002-11-20 株式会社東芝 光アド・ドロップ波長多重分離装置
DE59310326D1 (de) * 1993-10-29 2003-02-27 Siemens Ag Optisches, transparentes Ringnetz mit Ersatzschaltwegen
ATE270012T1 (de) * 1993-10-29 2004-07-15 Siemens Ag Optisches, transparentes ringnetz mit auskoppelung eines signales einer wellenlänge in einem oder mehreren ringknoten
US5680235A (en) * 1995-04-13 1997-10-21 Telefonaktiebolaget Lm Ericsson Optical multichannel system

Also Published As

Publication number Publication date
CN1170485A (zh) 1998-01-14
WO1996019884A1 (en) 1996-06-27
CA2207553A1 (en) 1996-06-27
AU697436B2 (en) 1998-10-08
FI972666A (fi) 1997-06-19
US6097516A (en) 2000-08-01
SE9404446L (sv) 1996-06-22
JPH10511821A (ja) 1998-11-10
KR100333253B1 (ko) 2002-11-20
DE69532296D1 (de) 2004-01-22
CN1101626C (zh) 2003-02-12
EP0799536A1 (en) 1997-10-08
ATE256358T1 (de) 2003-12-15
SE9404446D0 (sv) 1994-12-21
SE514658C2 (sv) 2001-03-26
AU4320196A (en) 1996-07-10
DE69532296T2 (de) 2004-10-21
EP0799536B1 (en) 2003-12-10
FI112136B (fi) 2003-10-31

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Legal Events

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MA Patent expired