DE3380681D1 - Method and device for separating position of fault in light transmission line - Google Patents

Method and device for separating position of fault in light transmission line

Info

Publication number
DE3380681D1
DE3380681D1 DE8383901394T DE3380681T DE3380681D1 DE 3380681 D1 DE3380681 D1 DE 3380681D1 DE 8383901394 T DE8383901394 T DE 8383901394T DE 3380681 T DE3380681 T DE 3380681T DE 3380681 D1 DE3380681 D1 DE 3380681D1
Authority
DE
Germany
Prior art keywords
fault
transmission line
light transmission
separating position
separating
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
Application number
DE8383901394T
Other languages
English (en)
Inventor
Kenji Okada
Junichiro Minowa
Kenichi Sato
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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
Priority claimed from JP57075619A external-priority patent/JPS58191948A/ja
Priority claimed from JP58071089A external-priority patent/JPS59196438A/ja
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Application granted granted Critical
Publication of DE3380681D1 publication Critical patent/DE3380681D1/de
Expired legal-status Critical Current

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
    • 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)
DE8383901394T 1982-05-06 1983-05-04 Method and device for separating position of fault in light transmission line Expired DE3380681D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP57075619A JPS58191948A (ja) 1982-05-06 1982-05-06 光伝送路の障害探索方式
JP58071089A JPS59196438A (ja) 1983-04-22 1983-04-22 光伝送路の障害探索方法
PCT/JP1983/000136 WO1983004150A1 (en) 1982-05-06 1983-05-04 Method and device for separating position of fault in light transmission line

Publications (1)

Publication Number Publication Date
DE3380681D1 true DE3380681D1 (en) 1989-11-09

Family

ID=26412215

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383901394T Expired DE3380681D1 (en) 1982-05-06 1983-05-04 Method and device for separating position of fault in light transmission line

Country Status (4)

Country Link
EP (1) EP0117868B1 (de)
CA (1) CA1238705A (de)
DE (1) DE3380681D1 (de)
WO (1) WO1983004150A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8906937D0 (en) * 1989-03-28 1989-05-10 Plessey Telecomm Testing optical fibre links
US5177354A (en) * 1989-12-11 1993-01-05 Nippon Telegraph And Telephone Corporation Device and a method for distinguishing faults employed in an optical transmission system
FR2738430B1 (fr) * 1990-09-21 1998-03-13 Alsthom Cge Alcatel Procede et dispositif de transmission d'information sur fibre optique avec detection et/ou localisation d'intrusion
GB9025304D0 (en) * 1990-11-21 1991-01-02 Plessey Telecomm Optical transmission monitoring
GB2274753B (en) * 1993-01-29 1997-06-25 Marconi Gec Ltd Optical signal transmission network
GB2315938B (en) * 1996-08-01 2001-02-28 Northern Telecom Ltd Optical transmission system fault analysis
DE19933268A1 (de) * 1999-07-15 2001-01-25 Siemens Ag Schaltungsanordnung und Verfahren zum Erkennen von einer Unterbrechung bei einer Lichtwellenleiterstrecke
CN102156329B (zh) 2010-02-12 2013-05-22 泰科电子(上海)有限公司 光纤滤波器装置及其制造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5183704A (de) * 1975-01-20 1976-07-22 Fujitsu Ltd
GB1540907A (en) * 1976-12-07 1979-02-21 Standard Telephones Cables Ltd System for obtaining data from a plurality of condition responsive optical devices
JPS5441001A (en) * 1977-09-07 1979-03-31 Fujitsu Ltd Fault locating system
JPS5597753A (en) * 1979-01-19 1980-07-25 Matsushita Electric Ind Co Ltd Optical-fiber transmission control system
JPS55140341A (en) * 1979-04-19 1980-11-01 Fujitsu Ltd Supervisory control system
JPS56100538A (en) * 1980-01-16 1981-08-12 Kokusai Denshin Denwa Co Ltd <Kdd> Optical repeater monitoring system
JPS5765930A (en) * 1980-10-13 1982-04-21 Nippon Telegr & Teleph Corp <Ntt> Searching method for fault of optical fiber transmission system
JPS57142044A (en) * 1981-02-27 1982-09-02 Fujitsu Ltd Monitor circuit for optical repeater

Also Published As

Publication number Publication date
EP0117868A1 (de) 1984-09-12
EP0117868B1 (de) 1989-10-04
CA1238705A (en) 1988-06-28
WO1983004150A1 (en) 1983-11-24
EP0117868A4 (de) 1987-09-15

Similar Documents

Publication Publication Date Title
EP0104477A3 (en) Method and device for inspecting image
DE3267548D1 (en) Process and device for an automatic optical inspection
DE3380744D1 (en) Immunoassay apparatus and method
AU563731B2 (en) Grydgenic device and method
DE3372239D1 (en) Method and apparatus for bus fault location
EP0097400A3 (en) Inspection and cutting apparatus
HUT35598A (en) Packing device and packing method
GB2124439B (en) Method and device for sealing
DE3380347D1 (en) Process and device for separating an oil-water mixture
EP0146898A3 (en) Yarn-threading method and device
GB2124365B (en) Optical inspection system and method
GB8317674D0 (en) Locating faults in optical transmission system
DE3380681D1 (en) Method and device for separating position of fault in light transmission line
AU2148683A (en) Strapping method and apparatus
GB2131653B (en) Transmission integrity arrangement and method
EP0140057A3 (en) Method and device for signal transmission
DE3379593D1 (en) Inspection apparatus and method
DE3366734D1 (en) Method and device for testing lenses
DE3474725D1 (en) Integral optical device and method
AU1331083A (en) Method and device for determining hydrogen flux
JPS56121296A (en) Lamp disconnection prenotifying method and device
DE3380441D1 (en) Device and method for sealing
DE3463325D1 (en) Method and device for the operation of a high-voltage direct current transmission system with a bypass in case of failure
AU1678483A (en) Device and method for routing cables
DE3480533D1 (en) Method and device for electroerosion-polishing

Legal Events

Date Code Title Description
8364 No opposition during term of opposition