SE458328B - Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk - Google Patents

Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk

Info

Publication number
SE458328B
SE458328B SE8702893A SE8702893A SE458328B SE 458328 B SE458328 B SE 458328B SE 8702893 A SE8702893 A SE 8702893A SE 8702893 A SE8702893 A SE 8702893A SE 458328 B SE458328 B SE 458328B
Authority
SE
Sweden
Prior art keywords
optical
test signal
output
switch
signal
Prior art date
Application number
SE8702893A
Other languages
English (en)
Swedish (sv)
Other versions
SE8702893L (sv
SE8702893D0 (sv
Inventor
P O Granestrand
A Vatsel
O B Andersson
J Berg
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 SE8702893A priority Critical patent/SE458328B/sv
Publication of SE8702893D0 publication Critical patent/SE8702893D0/xx
Priority to US07/205,689 priority patent/US4887309A/en
Priority to GB8815234A priority patent/GB2207019B/en
Priority to DE3821772A priority patent/DE3821772B4/de
Priority to JP17620188A priority patent/JP2685057B2/ja
Publication of SE8702893L publication Critical patent/SE8702893L/xx
Publication of SE458328B publication Critical patent/SE458328B/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/406—Monitoring; Testing of relay systems with selective localization using coded addresses

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
SE8702893A 1987-07-16 1987-07-16 Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk SE458328B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8702893A SE458328B (sv) 1987-07-16 1987-07-16 Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk
US07/205,689 US4887309A (en) 1987-07-16 1988-06-13 Optical repeater for fault tracing in an optical transmission system
GB8815234A GB2207019B (en) 1987-07-16 1988-06-27 Optical repeater for fault tracing in an optical transmission system
DE3821772A DE3821772B4 (de) 1987-07-16 1988-06-28 Optische Zweiwege-Signalübertragungsvorrichtung mit einer Einrichtung zur Fehlerlokalisierung
JP17620188A JP2685057B2 (ja) 1987-07-16 1988-07-14 光送信システムにおける故障追跡のための光再生器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8702893A SE458328B (sv) 1987-07-16 1987-07-16 Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk

Publications (3)

Publication Number Publication Date
SE8702893D0 SE8702893D0 (sv) 1987-07-16
SE8702893L SE8702893L (sv) 1989-01-17
SE458328B true SE458328B (sv) 1989-03-13

Family

ID=20369144

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8702893A SE458328B (sv) 1987-07-16 1987-07-16 Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk

Country Status (5)

Country Link
US (1) US4887309A (de)
JP (1) JP2685057B2 (de)
DE (1) DE3821772B4 (de)
GB (1) GB2207019B (de)
SE (1) SE458328B (de)

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JPS6249814A (ja) * 1986-08-08 1987-03-04 株式会社東芝 調理器
US5267073A (en) * 1989-10-30 1993-11-30 Pirelli Cavi S.P.A. Amplifier adapter for optical lines
JP2611695B2 (ja) * 1989-12-15 1997-05-21 日本電気株式会社 光中継器監視回路
GB2251148B (en) * 1990-09-18 1995-04-12 Fujitsu Ltd Optical repeater having loop-back function
GB9025304D0 (en) * 1990-11-21 1991-01-02 Plessey Telecomm Optical transmission monitoring
DE4102309C2 (de) * 1991-01-26 1996-05-15 Ant Nachrichtentech Optisches Verteilnetz
IT1247844B (it) * 1991-03-29 1995-01-02 Pirelli Cavi S P A Dir Proprie Linea di telecomunicazione a fibre ottiche con amplificatori ottici, dotata di mezzi di protezione in grado di interrompere l'emissione luminosa in tutta la linea in presenza di un'interruzione della fibra ottica e di riattivarla automaticamente al ripristino della sua continuita'
BE1004668A3 (nl) * 1991-04-02 1993-01-05 Bell Telephone Mfg Beschermingsinrichting voor een optische zender/ontvangerinrichting.
US5825515A (en) * 1991-09-03 1998-10-20 Lucent Technologies Inc. Supervisory apparatus for optical transmission system
JPH05211479A (ja) * 1992-01-30 1993-08-20 Fujitsu Ltd 同一波長双方向伝送装置の光ループバック方法
JP3008667B2 (ja) * 1992-05-07 2000-02-14 日本電気株式会社 光中継方式
US5383046A (en) * 1992-05-29 1995-01-17 Fujitsu Limited Supervisory and control signal transmitting system for use in optically amplifying repeaters system
US5317439A (en) * 1992-07-17 1994-05-31 At&T Bell Laboratories Automatic on-line monitoring and optimization of optical network switching nodes
US5296956A (en) * 1992-07-17 1994-03-22 At&T Bell Laboratories Performance monitoring and fault location for optical equipment, systems and networks
GB2273623B (en) * 1992-12-15 1996-12-04 Northern Telecom Ltd Optical transmission system
DE4321856A1 (de) * 1993-07-01 1995-01-12 Sel Alcatel Ag Faseroptischer Verstärker mit einer Vorrichtung zur Überwachung der Pump- und Eingangsleistung
JPH0787013A (ja) * 1993-09-10 1995-03-31 Fujitsu Ltd 光海底ケーブルシステム
JPH0795161A (ja) * 1993-09-20 1995-04-07 Fujitsu Ltd 光増幅中継伝送システム
US5548438A (en) * 1993-12-23 1996-08-20 At&T Corp. Bidirectional optical amplifier
JPH07264231A (ja) * 1994-03-16 1995-10-13 Fujitsu Ltd 回線切替え方式
US5532864A (en) * 1995-06-01 1996-07-02 Ciena Corporation Optical monitoring channel for wavelength division multiplexed optical communication system
JPH0918411A (ja) * 1995-06-27 1997-01-17 Fujitsu Ltd 光中継器
US7181138B1 (en) * 1998-12-14 2007-02-20 Tellabs Operations, Inc. Optical network connection test apparatus and methods
US6721508B1 (en) 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
US6370294B1 (en) 1999-06-25 2002-04-09 Adc Telecommunications, Inc. Fiber optic circuit and module with switch
US6493124B1 (en) 1999-07-27 2002-12-10 Tellabs Operations, Inc. Looping back signals in optical switches
WO2001035581A1 (en) * 1999-11-10 2001-05-17 Fujitsu Limited Optical communication apparatus and system
GB2367220B (en) * 2000-09-22 2004-02-18 Mitel Semiconductor Ab Serialised test of parellel optical module
US20020057477A1 (en) * 2000-10-25 2002-05-16 Corrado Rocca Underwater optical transmission system and switchable underwater repeater
EP1202595A1 (de) * 2000-10-25 2002-05-02 PIRELLI SUBMARINE TELECOM SYSTEMS ITALIA S.p.A. Unterseeisches Optisches Übertragungssystem und vermittelbarer unterseeischer Zwischenverstärker
JP2002271267A (ja) * 2001-03-07 2002-09-20 Nec Corp ネットワークノード装置及びそれを用いたネットワークシステム並びにその障害位置検出方法
US20120294604A1 (en) * 2011-05-16 2012-11-22 Xtera Communications, Inc. Optical protection and switch enabled optical repeating
US20150092825A1 (en) * 2013-09-27 2015-04-02 Qualcomm Incorporated Self-test using internal feedback for transmit signal quality estimation
US9611733B2 (en) 2015-08-28 2017-04-04 Schlumberger Technology Corporation Communication signal repeater system for a bottom hole assembly
JP2017227660A (ja) * 2016-06-20 2017-12-28 富士通株式会社 光学部品

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751645C3 (de) * 1977-11-18 1980-08-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Überwachung von Nachrichtenübertragungssystemen mit Lichtwellenleitern
FR2412862A1 (fr) * 1977-12-22 1979-07-20 Thomson Csf Dispositif de couplage a une ligne de transmission optique et systeme de transmission comportant de tels dispositifs
JPS593051B2 (ja) * 1978-01-09 1984-01-21 ケイディディ株式会社 光中継伝送路の障害監視方式
US4278850A (en) * 1978-04-11 1981-07-14 Kokusai Denshin Denwa Co., Ltd. Monitoring system for optical transmission line repeaters
JPS596538B2 (ja) * 1979-02-08 1984-02-13 ケイディディ株式会社 光中継器監視方式
JPS55152434A (en) * 1979-05-17 1980-11-27 Kokusai Denshin Denwa Co Ltd <Kdd> Light output monitoring system for light repeater
JPS561645A (en) * 1979-06-19 1981-01-09 Kokusai Denshin Denwa Co Ltd <Kdd> Remote control system for optical repeater
US4266183A (en) * 1979-07-25 1981-05-05 International Telephone And Telegraph Corporation Fault locating arrangement for a two-way repeatered transmission link
DE3042815C2 (de) * 1980-11-13 1985-10-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Fehlerortung auf einer optischen Übertragungsstrecke und Anordnungen zur Durchführung des Verfahrens
JPS58225744A (ja) * 1982-06-24 1983-12-27 Fujitsu Ltd 半導体レ−ザ送信回路
DE3224998A1 (de) * 1982-07-03 1984-01-05 Philips Kommunikations Industrie AG, 8500 Nürnberg Einrichtung fuer die fehlerortung in einem optischen nachrichtenuebertragungssystem
US4783851A (en) * 1984-01-27 1988-11-08 Yokogawa Electric Corporation Optical communication system
DE19611124B4 (de) * 1996-03-21 2012-07-26 Heidelberger Druckmaschinen Ag Bogenübertragungseinrichtung einer Bogenrotationsdruckmaschine
JP3179025B2 (ja) * 1996-06-26 2001-06-25 株式会社タカラ ジオラマ玩具

Also Published As

Publication number Publication date
GB8815234D0 (en) 1988-08-03
DE3821772B4 (de) 2006-05-04
JPS6437134A (en) 1989-02-07
JP2685057B2 (ja) 1997-12-03
SE8702893L (sv) 1989-01-17
GB2207019B (en) 1991-03-13
DE3821772A1 (de) 1989-01-26
US4887309A (en) 1989-12-12
GB2207019A (en) 1989-01-18
SE8702893D0 (sv) 1987-07-16

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