BE848968R - Detecteur d'etat de boucle par ligne telephonique - Google Patents

Detecteur d'etat de boucle par ligne telephonique

Info

Publication number
BE848968R
BE848968R BE2055500A BE2055500A BE848968R BE 848968 R BE848968 R BE 848968R BE 2055500 A BE2055500 A BE 2055500A BE 2055500 A BE2055500 A BE 2055500A BE 848968 R BE848968 R BE 848968R
Authority
BE
Belgium
Prior art keywords
telephone line
status detector
loop status
detector per
per telephone
Prior art date
Application number
BE2055500A
Other languages
English (en)
French (fr)
Inventor
A Mingaud
P H Cogne
C M A Ciavaldini
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 filed Critical
Application granted granted Critical
Publication of BE848968R publication Critical patent/BE848968R/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
    • 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
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
BE2055500A 1975-12-03 1976-12-02 Detecteur d'etat de boucle par ligne telephonique BE848968R (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7536924A FR2334113A1 (fr) 1975-12-03 1975-12-03 Circuit de detection de courant circulant dans une ligne

Publications (1)

Publication Number Publication Date
BE848968R true BE848968R (fr) 1977-06-02

Family

ID=9163243

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2055500A BE848968R (fr) 1975-12-03 1976-12-02 Detecteur d'etat de boucle par ligne telephonique

Country Status (3)

Country Link
BE (1) BE848968R (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2334113A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1516049A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516660A1 (fr) * 1981-11-17 1983-05-20 Telemecanique Electrique Dispositif de detection du courant dans un circuit de puissance ayant une charge variable, utilisant une diode electroluminescente associee a un photorecepteur
JPS60518A (ja) * 1983-06-16 1985-01-05 Hayashibara Takeshi ダイオ−ド非直線部の降下電圧応動装置
FR2557412B1 (fr) * 1983-12-23 1990-07-27 Cit Alcatel Dispositif d'essais de joncteurs d'abonnes deux fils
DE10219056A1 (de) * 2002-04-24 2003-11-13 Demag Cranes & Components Gmbh Bustreiber für bidirektionale Zweidrahtbussysteme

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2131038A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-03-30 1972-11-10 Ass Ouvriers Instr Preci
GB1414459A (en) * 1972-01-12 1975-11-19 Standard Telephones Cables Ltd Electronic relay
US3898389A (en) * 1972-10-18 1975-08-05 Communic Mfg Voltage and/or current-sensitive loop extender
DE2345880B1 (de) * 1973-09-12 1975-01-09 Telefonbau & Normalzeit Gmbh Schaltungsanordnung zum Erfassen von Schleifenzustaenden

Also Published As

Publication number Publication date
FR2334113A1 (fr) 1977-07-01
FR2334113B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-05-23
GB1516049A (en) 1978-06-28

Similar Documents

Publication Publication Date Title
CS262277A2 (en) Opticky snimac informacniho disku
GB1540916A (en) Fastening device
JPS5288423A (en) Clip dispenser
JPS52113200A (en) Remote signaling device
PH12215A (en) B-adreneroic receptor blocking agents
GB1545122A (en) Coupling hook
JPS52149787A (en) Article sending device
JPS52154963A (en) Fastening device
ZA772469B (en) Bundle ties
JPS52153561A (en) Hook
JPS5244474A (en) Swivel device
JPS5291259A (en) Twoothrow hook
GB1537625A (en) Stop-motion apparatus
GB1556699A (en) Fishing reels with line spreading devices
BE848968R (fr) Detecteur d'etat de boucle par ligne telephonique
JPS52135722A (en) Telecine device
JPS5341671A (en) Tension clamp
JPS5328190A (en) 77*22*substituted benzoylamino* acetamide* cephalosporing
JPS53143741A (en) Free fiber spinning device
JPS5345785A (en) Roving device
JPS5335031A (en) Automatic doffing device
JPS5310856A (en) Winding device
BE866219R (fr) Detecteur d'etat de boucle pour ligne telephonique
JPS51149027A (en) Telecine unit
BE828977A (fr) Detecteur d'etat de boucle pour ligne telephonique