FR2556473B1 - Controleur de courant dans une ligne electrique notamment une ligne telephonique - Google Patents

Controleur de courant dans une ligne electrique notamment une ligne telephonique

Info

Publication number
FR2556473B1
FR2556473B1 FR8319571A FR8319571A FR2556473B1 FR 2556473 B1 FR2556473 B1 FR 2556473B1 FR 8319571 A FR8319571 A FR 8319571A FR 8319571 A FR8319571 A FR 8319571A FR 2556473 B1 FR2556473 B1 FR 2556473B1
Authority
FR
France
Prior art keywords
line
current controller
telephone line
electric
telephone
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
FR8319571A
Other languages
English (en)
Other versions
FR2556473A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8319571A priority Critical patent/FR2556473B1/fr
Publication of FR2556473A1 publication Critical patent/FR2556473A1/fr
Application granted granted Critical
Publication of FR2556473B1 publication Critical patent/FR2556473B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/15—Indicating the presence of current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
    • G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR8319571A 1983-12-07 1983-12-07 Controleur de courant dans une ligne electrique notamment une ligne telephonique Expired FR2556473B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8319571A FR2556473B1 (fr) 1983-12-07 1983-12-07 Controleur de courant dans une ligne electrique notamment une ligne telephonique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8319571A FR2556473B1 (fr) 1983-12-07 1983-12-07 Controleur de courant dans une ligne electrique notamment une ligne telephonique

Publications (2)

Publication Number Publication Date
FR2556473A1 FR2556473A1 (fr) 1985-06-14
FR2556473B1 true FR2556473B1 (fr) 1986-10-10

Family

ID=9294944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8319571A Expired FR2556473B1 (fr) 1983-12-07 1983-12-07 Controleur de courant dans une ligne electrique notamment une ligne telephonique

Country Status (1)

Country Link
FR (1) FR2556473B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR708549A (fr) * 1930-01-30 1931-07-24 Philips Nv Instrument de mesure électrique
FR2038518A5 (fr) * 1969-03-18 1971-01-08 Radiotechnique Compelec
DE3014644A1 (de) * 1980-04-16 1981-10-22 S. Siedle & Söhne Telefon- und Telegrafenwerke GmbH, 7743 Furtwangen Netzgeraet

Also Published As

Publication number Publication date
FR2556473A1 (fr) 1985-06-14

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse