FR2489629A1 - Methode de supervision d'un systeme de transmission a repeteurs, notamment un systeme de telecommunications par fibres optiques - Google Patents

Methode de supervision d'un systeme de transmission a repeteurs, notamment un systeme de telecommunications par fibres optiques Download PDF

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Publication number
FR2489629A1
FR2489629A1 FR8116287A FR8116287A FR2489629A1 FR 2489629 A1 FR2489629 A1 FR 2489629A1 FR 8116287 A FR8116287 A FR 8116287A FR 8116287 A FR8116287 A FR 8116287A FR 2489629 A1 FR2489629 A1 FR 2489629A1
Authority
FR
France
Prior art keywords
repeater
frequency
pilot signal
signal
repeaters
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.)
Granted
Application number
FR8116287A
Other languages
English (en)
French (fr)
Other versions
FR2489629B1 (enExample
Inventor
William Hugh Powell
Hugo Franz Jozef Witters
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2489629A1 publication Critical patent/FR2489629A1/fr
Application granted granted Critical
Publication of FR2489629B1 publication Critical patent/FR2489629B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Optical Communication System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR8116287A 1980-08-26 1981-08-26 Methode de supervision d'un systeme de transmission a repeteurs, notamment un systeme de telecommunications par fibres optiques Granted FR2489629A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8027564A GB2075311B (en) 1980-08-26 1980-08-26 Supervision of transmission systems

Publications (2)

Publication Number Publication Date
FR2489629A1 true FR2489629A1 (fr) 1982-03-05
FR2489629B1 FR2489629B1 (enExample) 1984-11-30

Family

ID=10515644

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8116287A Granted FR2489629A1 (fr) 1980-08-26 1981-08-26 Methode de supervision d'un systeme de transmission a repeteurs, notamment un systeme de telecommunications par fibres optiques

Country Status (5)

Country Link
US (1) US4499600A (enExample)
JP (1) JPS5773534A (enExample)
CH (1) CH652543A5 (enExample)
FR (1) FR2489629A1 (enExample)
GB (1) GB2075311B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8320509D0 (en) * 1983-07-29 1983-09-01 Westinghouse Brake & Signal Proving safe operation
DE3484156D1 (de) * 1983-07-29 1991-04-04 Westinghouse Brake & Signal Sicherheitsbetriebspruefung einer gesteuerten anlage.
US4586186A (en) * 1983-08-08 1986-04-29 At&T Bell Laboratories Maintenance response signalling arrangement for a digital transmission system
US4679252A (en) * 1984-01-11 1987-07-07 Chevron Research Company Fiber optic receiver having a method and an apparatus for data clock extraction
US4688268A (en) * 1984-01-11 1987-08-18 Chevron Research Company Fiber optic receiver having a combined baseline clamp and automatic gain control detector
GB2160380B (en) * 1984-06-14 1988-01-27 Stc Plc Optical transmission systems
US4941198A (en) * 1987-11-12 1990-07-10 Peninsula Engineering Group, Inc. Communications repeater monitoring system
US5212713A (en) * 1989-08-09 1993-05-18 Tasman Cable Company Fault location arrangement for digital transmission systems
US5299044A (en) * 1992-08-24 1994-03-29 At&T Bell Laboratories Ranging method for use in TDMA systems on tree-and-branch optical networks
US6211985B1 (en) * 1997-08-08 2001-04-03 Tyco Submarine Systems Ltd. Remote monitoring of an optical transmission system using line monitoring signals
JP3564437B2 (ja) * 2001-07-25 2004-09-08 埼玉日本電気株式会社 無線基地局システムの受信部監視システム及び監視方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3629523A (en) * 1968-09-25 1971-12-21 Cit Alcatel Repeater for a transmission line and a method of monitoring the repeater in the line
US3637955A (en) * 1969-01-02 1972-01-25 Int Standard Electric Corp Supervisory system for unattended repeaters
US3904827A (en) * 1972-08-24 1975-09-09 Philips Corp System for locating faulty line repeaters of repeater stations in a transmission line

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311714A (en) * 1963-12-20 1967-03-28 Bell Telephone Labor Inc Method and apparatus for testing a repeatered transmission path
FR2361022A1 (fr) * 1976-08-06 1978-03-03 Aerospatiale Procede et dispositif de transmission de signaux par fibres optiques
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
JPS5574247A (en) * 1978-11-30 1980-06-04 Nec Corp Line monitor system for radio relay line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3629523A (en) * 1968-09-25 1971-12-21 Cit Alcatel Repeater for a transmission line and a method of monitoring the repeater in the line
US3637955A (en) * 1969-01-02 1972-01-25 Int Standard Electric Corp Supervisory system for unattended repeaters
US3904827A (en) * 1972-08-24 1975-09-09 Philips Corp System for locating faulty line repeaters of repeater stations in a transmission line

Also Published As

Publication number Publication date
CH652543A5 (de) 1985-11-15
US4499600A (en) 1985-02-12
JPS6253095B2 (enExample) 1987-11-09
FR2489629B1 (enExample) 1984-11-30
GB2075311B (en) 1984-10-03
GB2075311A (en) 1981-11-11
JPS5773534A (en) 1982-05-08

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Date Code Title Description
ST Notification of lapse