JPS55128942A - Method of monitoring signal*nosise ratio in repeater of optical transmission line - Google Patents

Method of monitoring signal*nosise ratio in repeater of optical transmission line

Info

Publication number
JPS55128942A
JPS55128942A JP3480580A JP3480580A JPS55128942A JP S55128942 A JPS55128942 A JP S55128942A JP 3480580 A JP3480580 A JP 3480580A JP 3480580 A JP3480580 A JP 3480580A JP S55128942 A JPS55128942 A JP S55128942A
Authority
JP
Japan
Prior art keywords
amplifier
signal
value
nosise
repeater
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.)
Pending
Application number
JP3480580A
Other languages
English (en)
Inventor
Shienkeru Deiiteru
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of JPS55128942A publication Critical patent/JPS55128942A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/31708—Analysis of signal quality
    • G01R31/3171—BER [Bit Error Rate] test
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
    • 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
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0797—Monitoring line amplifier or line repeater equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/08—Shut-down or eye-safety

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
JP3480580A 1979-03-22 1980-03-21 Method of monitoring signal*nosise ratio in repeater of optical transmission line Pending JPS55128942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792911175 DE2911175A1 (de) 1979-03-22 1979-03-22 Verfahren zur ueberwachung des signal/ rausch-verhaeltnisses auf optischen uebertragungsstrecken

Publications (1)

Publication Number Publication Date
JPS55128942A true JPS55128942A (en) 1980-10-06

Family

ID=6066062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3480580A Pending JPS55128942A (en) 1979-03-22 1980-03-21 Method of monitoring signal*nosise ratio in repeater of optical transmission line

Country Status (5)

Country Link
JP (1) JPS55128942A (ja)
DE (1) DE2911175A1 (ja)
FR (1) FR2454220A1 (ja)
GB (1) GB2045954A (ja)
IT (1) IT1130264B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947459A (en) * 1988-11-25 1990-08-07 Honeywell, Inc. Fiber optic link noise measurement and optimization system
ATE119338T1 (de) * 1989-08-03 1995-03-15 Siemens Ag Verfahren zur überwachung des betriebszustandes einer elektrooptischen übertragungseinrichtung und schaltungsanordnung zur durchführung des verfahrens.
GB2272590B (en) * 1992-11-17 1996-06-19 Northern Telecom Ltd Optical communications system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213370A (en) * 1961-03-13 1965-10-19 Ibm Signal selecting system with switching at the interstice between data increments
US4027152A (en) * 1975-11-28 1977-05-31 Hewlett-Packard Company Apparatus and method for transmitting binary-coded information

Also Published As

Publication number Publication date
DE2911175A1 (de) 1980-09-25
IT8020328A0 (it) 1980-03-03
GB2045954A (en) 1980-11-05
IT1130264B (it) 1986-06-11
FR2454220A1 (fr) 1980-11-07

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