SE9202112D0 - Foerfarande och anordning foer oevervakning av foergrenade optiska ledningsnaet - Google Patents

Foerfarande och anordning foer oevervakning av foergrenade optiska ledningsnaet

Info

Publication number
SE9202112D0
SE9202112D0 SE9202112A SE9202112A SE9202112D0 SE 9202112 D0 SE9202112 D0 SE 9202112D0 SE 9202112 A SE9202112 A SE 9202112A SE 9202112 A SE9202112 A SE 9202112A SE 9202112 D0 SE9202112 D0 SE 9202112D0
Authority
SE
Sweden
Prior art keywords
monitoring
branching
information
procedure
gate
Prior art date
Application number
SE9202112A
Other languages
English (en)
Other versions
SE518622C2 (sv
SE9202112L (sv
Inventor
G Edwall
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
Priority to SE9202112A priority Critical patent/SE518622C2/sv
Publication of SE9202112D0 publication Critical patent/SE9202112D0/sv
Priority to CA002099742A priority patent/CA2099742A1/en
Priority to GB9313538A priority patent/GB2268652B/en
Priority to DE4322129A priority patent/DE4322129A1/de
Priority to JP16456493A priority patent/JP3325655B2/ja
Priority to FR9308149A priority patent/FR2694148B1/fr
Publication of SE9202112L publication Critical patent/SE9202112L/sv
Priority to US08/354,145 priority patent/US5452075A/en
Publication of SE518622C2 publication Critical patent/SE518622C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
SE9202112A 1992-07-03 1992-07-03 Förfarande och anordning för övervakning av förgrenade optiska ledningsnät SE518622C2 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9202112A SE518622C2 (sv) 1992-07-03 1992-07-03 Förfarande och anordning för övervakning av förgrenade optiska ledningsnät
CA002099742A CA2099742A1 (en) 1992-07-03 1993-06-29 Method and device for monitoring branched optical line networks
GB9313538A GB2268652B (en) 1992-07-03 1993-06-30 Method and device for monitoring branched optical line networks
DE4322129A DE4322129A1 (de) 1992-07-03 1993-07-02 Verfahren und Vorrichtung zur Überwachung von Netzwerken mit verzweigten optischen Leitungen
JP16456493A JP3325655B2 (ja) 1992-07-03 1993-07-02 分岐した光学線路回路網をモニタする方法と装置
FR9308149A FR2694148B1 (fr) 1992-07-03 1993-07-02 Procede et dispositif pour surveiller des reseaux de lignes optiques ramifiees.
US08/354,145 US5452075A (en) 1992-07-03 1994-12-06 Method and device for monitoring branched optical line network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9202112A SE518622C2 (sv) 1992-07-03 1992-07-03 Förfarande och anordning för övervakning av förgrenade optiska ledningsnät

Publications (3)

Publication Number Publication Date
SE9202112D0 true SE9202112D0 (sv) 1992-07-03
SE9202112L SE9202112L (sv) 1994-01-04
SE518622C2 SE518622C2 (sv) 2002-10-29

Family

ID=20386741

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202112A SE518622C2 (sv) 1992-07-03 1992-07-03 Förfarande och anordning för övervakning av förgrenade optiska ledningsnät

Country Status (7)

Country Link
US (1) US5452075A (sv)
JP (1) JP3325655B2 (sv)
CA (1) CA2099742A1 (sv)
DE (1) DE4322129A1 (sv)
FR (1) FR2694148B1 (sv)
GB (1) GB2268652B (sv)
SE (1) SE518622C2 (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440434A1 (de) * 1994-11-11 1996-05-30 Siemens Ag Verfahren zum Betrieb einer zwischen einer LWL-Anschlußeinheit und einer passiven optischen Schnittstelle liegenden optischen Breitband-Anschlußleitung
MX9800791A (es) * 1995-07-28 1998-04-30 British Telecomm Direccionamiento de paquetes.
KR0170865B1 (ko) * 1995-07-28 1999-03-20 김주용 광 케이블 텔레비전 시스템의 일반전화 시험방법 및 시험장치
US5754285A (en) * 1997-03-12 1998-05-19 At&T Corp Method and apparatus for remotely testing optical fiber splices via optical time domain reflectometry
US8750702B1 (en) * 2002-06-21 2014-06-10 Rockstar Consortium Us Lp Passive optical loopback
EP1487224A1 (en) * 2003-06-11 2004-12-15 Sony France S.A. Wireless communication system and method for facilitating wireless communication
US20090116000A1 (en) * 2007-11-01 2009-05-07 Jason Kiddy Fiber optic shape determination system
IL201773A0 (en) * 2009-10-27 2010-06-16 Eci Telecom Ltd Technique for fault localization in passive optical networks
JP5324490B2 (ja) * 2010-01-28 2013-10-23 日本電信電話株式会社 光合分岐回路及び光スイッチ
JP6871131B2 (ja) 2017-10-27 2021-05-12 株式会社東芝 粒子線医療装置
CN110661569B (zh) * 2018-06-28 2022-08-02 中兴通讯股份有限公司 光纤故障定位的方法、设备和存储介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397551A (en) * 1981-10-29 1983-08-09 Northern Telecom Limited Method and apparatus for optical fiber fault location
GB2191356B (en) * 1986-06-03 1990-06-13 Stc Plc Optical communication terminal
JPH0828680B2 (ja) * 1987-07-23 1996-03-21 国際電信電話株式会社 双方向光ファイバ通信系の障害点監視方式
JPS6465938A (en) * 1987-09-04 1989-03-13 Nippon Telegraph & Telephone Method for monitoring change of light loss in optical transmission line
DE3735291A1 (de) * 1987-10-16 1989-04-27 Krone Ag Uebertragungsstrecke fuer opto-elektrische, digitale audio- und videosignale
FR2637432B1 (fr) * 1988-10-03 1990-11-30 Telecommunications Sa Systeme de surveillance de liaisons a fibre optique
JPH02120706A (ja) * 1988-10-31 1990-05-08 Sumitomo Electric Ind Ltd 光通信路
GB8828408D0 (en) * 1988-12-06 1989-01-05 British Telecomm Loss detector
GB8906937D0 (en) * 1989-03-28 1989-05-10 Plessey Telecomm Testing optical fibre links
US5051578A (en) * 1989-11-15 1991-09-24 Slemon Charles S Self calibrating fiber optic sensor system with optimized throughput
GB9008895D0 (en) * 1990-04-20 1990-06-20 British Telecomm Optical communications link fault signalling
GB9026898D0 (en) * 1990-12-11 1991-01-30 British Telecomm Optical communications system
JP2966113B2 (ja) * 1990-12-27 1999-10-25 古河電気工業株式会社 導波路型分岐結合器
JP2804633B2 (ja) * 1991-02-12 1998-09-30 日本電信電話株式会社 光折り返し／媒体試験器

Also Published As

Publication number Publication date
GB9313538D0 (en) 1993-08-11
SE518622C2 (sv) 2002-10-29
JP3325655B2 (ja) 2002-09-17
CA2099742A1 (en) 1994-01-04
SE9202112L (sv) 1994-01-04
US5452075A (en) 1995-09-19
JPH06104839A (ja) 1994-04-15
GB2268652B (en) 1996-02-07
DE4322129A1 (de) 1994-01-05
GB2268652A (en) 1994-01-12
FR2694148B1 (fr) 1996-01-12
FR2694148A1 (fr) 1994-01-28

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Legal Events

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NUG Patent has lapsed