FR2363952A1 - Circuit de ligne telephonique - Google Patents

Circuit de ligne telephonique

Info

Publication number
FR2363952A1
FR2363952A1 FR7626614A FR7626614A FR2363952A1 FR 2363952 A1 FR2363952 A1 FR 2363952A1 FR 7626614 A FR7626614 A FR 7626614A FR 7626614 A FR7626614 A FR 7626614A FR 2363952 A1 FR2363952 A1 FR 2363952A1
Authority
FR
France
Prior art keywords
telephone line
line circuit
line
make
wire
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
FR7626614A
Other languages
English (en)
Other versions
FR2363952B1 (fr
Inventor
Gerard Le Cardonnel
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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Priority to FR7626614A priority Critical patent/FR2363952A1/fr
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to BE180557A priority patent/BE858262A/fr
Priority to GB36417/77A priority patent/GB1530089A/en
Priority to IT50829/77A priority patent/IT1084094B/it
Priority to NL7709578A priority patent/NL7709578A/xx
Priority to SE7709758A priority patent/SE7709758L/xx
Priority to JP10598077A priority patent/JPS5332605A/ja
Priority to DE19772739718 priority patent/DE2739718A1/de
Publication of FR2363952A1 publication Critical patent/FR2363952A1/fr
Application granted granted Critical
Publication of FR2363952B1 publication Critical patent/FR2363952B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

L'invention concerne les circuits permettant d'assurer la liaison entre une ligne téléphonique d'abonnée et le central auquel elle est reliée. Elle consiste à utiliser un assemblage d'amplificateurs pour réaliser la séparation deux fils/quatre fils et l'alimentation de la ligne. Des commutateurs statiques permettent de réaliser les connexions nécessaires aux différents modes de fonctionnement. Elle permet de réaliser des circuits de ligne aisément intégrables.
FR7626614A 1976-09-03 1976-09-03 Circuit de ligne telephonique Granted FR2363952A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7626614A FR2363952A1 (fr) 1976-09-03 1976-09-03 Circuit de ligne telephonique
GB36417/77A GB1530089A (en) 1976-09-03 1977-08-31 Telephone line circuit
IT50829/77A IT1084094B (it) 1976-09-03 1977-08-31 Circuito di linea telefonica
NL7709578A NL7709578A (nl) 1976-09-03 1977-08-31 Telefoonlijnschakeling.
BE180557A BE858262A (fr) 1976-09-03 1977-08-31 Circuit de ligne telephonique
SE7709758A SE7709758L (sv) 1976-09-03 1977-08-31 Telefonlinjekrets
JP10598077A JPS5332605A (en) 1976-09-03 1977-09-02 Telephone line circuit
DE19772739718 DE2739718A1 (de) 1976-09-03 1977-09-02 Fernsprechleitungsschaltung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626614A FR2363952A1 (fr) 1976-09-03 1976-09-03 Circuit de ligne telephonique

Publications (2)

Publication Number Publication Date
FR2363952A1 true FR2363952A1 (fr) 1978-03-31
FR2363952B1 FR2363952B1 (fr) 1981-09-25

Family

ID=9177355

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626614A Granted FR2363952A1 (fr) 1976-09-03 1976-09-03 Circuit de ligne telephonique

Country Status (8)

Country Link
JP (1) JPS5332605A (fr)
BE (1) BE858262A (fr)
DE (1) DE2739718A1 (fr)
FR (1) FR2363952A1 (fr)
GB (1) GB1530089A (fr)
IT (1) IT1084094B (fr)
NL (1) NL7709578A (fr)
SE (1) SE7709758L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437123A1 (fr) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Nouveau dispositif d'alimentation electronique
FR2438394A1 (fr) * 1978-10-06 1980-04-30 Philips Nv Pont d'alimentation pour ligne d'abonne
FR2458183A1 (fr) * 1979-05-28 1980-12-26 Philips Nv Dispositif pour amener des signaux a une ligne telephonique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531358A (en) * 1978-08-28 1980-03-05 Nec Corp Subscriber circuit
JPS5537046A (en) * 1978-09-06 1980-03-14 Nec Corp Subscriber's circuit
JPS5593392A (en) * 1979-01-10 1980-07-15 Nec Corp Subscriber circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437123A1 (fr) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Nouveau dispositif d'alimentation electronique
FR2438394A1 (fr) * 1978-10-06 1980-04-30 Philips Nv Pont d'alimentation pour ligne d'abonne
FR2458183A1 (fr) * 1979-05-28 1980-12-26 Philips Nv Dispositif pour amener des signaux a une ligne telephonique

Also Published As

Publication number Publication date
DE2739718A1 (de) 1978-03-09
BE858262A (fr) 1977-12-16
SE7709758L (sv) 1978-03-04
FR2363952B1 (fr) 1981-09-25
GB1530089A (en) 1978-10-25
NL7709578A (nl) 1978-03-07
JPS5332605A (en) 1978-03-28
IT1084094B (it) 1985-05-25

Similar Documents

Publication Publication Date Title
FR2400280A1 (fr) Circuit de conversion electronique 4 fils-2 fils pour reseaux de telecommunications
FR2379203A1 (fr) Circuit differentiel de conversion de signaux entre des lignes de transmission
FR2392557A1 (fr) Dispositif d'alimentation telephonique par batterie locale
FR2423098A1 (fr) Circuit differentiel electronique adaptatif
DK137883D0 (da) Telefonopkaldekredsloeb til hurtig duplex-datatransmission
FR2363952A1 (fr) Circuit de ligne telephonique
SE8403631L (sv) Overforing av dataanrop
FR2406931A1 (fr) Dispositifs perfectionnes d'attenuateurs et boitiers correspondants
SE8106157L (sv) Digital tva-till-fyrtradsomvandlare for fullduplexsignaler
JPS549523A (en) Telephone line connection type communication terminal
US4056695A (en) Key telephone line circuit tone-on-hold arrangement
JPS56136072A (en) Telephone set service network
AU545268B2 (en) Remote testing of subscriber line interface circuits
FR2445666A1 (fr) Circuit de ligne pour reseau de telecommunication assurant l'alimentation en courant des equipements terminaux de dedoublement des lignes a deux fils en lignes a quatre fils
SU566396A1 (ru) Устройство дл коммутации абонентов атс
SU546118A1 (ru) Устройство многолинейной телефонной св зи
JPS556928A (en) Extension answer connecting system for key telephone system
DE59108519D1 (de) Teilnehmeranschlussschaltung zum Anschluss einer Teilnehmeranschlussleitung für die Übertragung von analogen Teilnehmersignalen an die Vermittlungsstelle einer digitalen Zeitmultiplex-Fernsprechvermittlungsstelle
SU33195A1 (ru) Устройство дл включени двух абонентов станции системы центральной батареи
US2828366A (en) Holding circuit for a multi-line telephone system
SU423257A1 (ru) Устройство для приема ответа абонента
JPH0224428B2 (fr)
ZA832715B (en) Additional line coupling circuit to an intercom telephone set
FR2402977A1 (fr) Circuit logique d'acces terminal telephonique
JPS55125756A (en) Connection test system for automatic exchanger

Legal Events

Date Code Title Description
ST Notification of lapse