IT8567455A0 - Interfaccia di collegamento di circuito d abbonato per autocommutato re telefonico - Google Patents

Interfaccia di collegamento di circuito d abbonato per autocommutato re telefonico

Info

Publication number
IT8567455A0
IT8567455A0 IT8567455A IT6745585A IT8567455A0 IT 8567455 A0 IT8567455 A0 IT 8567455A0 IT 8567455 A IT8567455 A IT 8567455A IT 6745585 A IT6745585 A IT 6745585A IT 8567455 A0 IT8567455 A0 IT 8567455A0
Authority
IT
Italy
Prior art keywords
auto
circuit connection
switched telephone
connection interface
subscriber circuit
Prior art date
Application number
IT8567455A
Other languages
English (en)
Other versions
IT8567455A1 (it
IT1183840B (it
Inventor
Raphael Roux Jose Paulet
Bernard Gilles
Original Assignee
Thomson Csf Mat Tel
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 Thomson Csf Mat Tel filed Critical Thomson Csf Mat Tel
Publication of IT8567455A0 publication Critical patent/IT8567455A0/it
Publication of IT8567455A1 publication Critical patent/IT8567455A1/it
Application granted granted Critical
Publication of IT1183840B publication Critical patent/IT1183840B/it

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
IT67455/85A 1984-05-18 1985-05-17 Interfaccia di collegamento di circuito d'abbonato per autocommutatore telefonico IT1183840B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8407758A FR2564678B1 (fr) 1984-05-18 1984-05-18 Interface de liaison de circuit d'abonne pour autocommutateur telephonique

Publications (3)

Publication Number Publication Date
IT8567455A0 true IT8567455A0 (it) 1985-05-17
IT8567455A1 IT8567455A1 (it) 1986-11-17
IT1183840B IT1183840B (it) 1987-10-22

Family

ID=9304139

Family Applications (2)

Application Number Title Priority Date Filing Date
IT67455/85A IT1183840B (it) 1984-05-18 1985-05-17 Interfaccia di collegamento di circuito d'abbonato per autocommutatore telefonico
IT8553397U IT8553397V0 (it) 1984-05-18 1985-05-17 Interfaccia di collegamento di circuito d abbonato per autocommutato re telefonico

Family Applications After (1)

Application Number Title Priority Date Filing Date
IT8553397U IT8553397V0 (it) 1984-05-18 1985-05-17 Interfaccia di collegamento di circuito d abbonato per autocommutato re telefonico

Country Status (4)

Country Link
US (1) US4752952A (it)
DE (1) DE3517878A1 (it)
FR (1) FR2564678B1 (it)
IT (2) IT1183840B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2645022B2 (ja) * 1987-08-21 1997-08-25 株式会社東芝 加入者回路
US5270701A (en) * 1988-03-08 1993-12-14 Kokusai Denshin Denwa Co., Ltd. Service processing system with distributed data bases

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305080A1 (fr) * 1975-03-20 1976-10-15 Jeumont Schneider Termineur electronique
DE2556157C3 (de) * 1975-12-11 1979-01-18 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung für eine elektronische Teilnehmerspeisung
US4041252A (en) * 1976-06-07 1977-08-09 North Electric Company Transformerless two-wire/four-wire hybrid with DC sourcing capability
DE2655005C3 (de) * 1976-12-02 1980-04-17 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung für eine elektronische Teilnehmerspeisung
DE2828886C3 (de) * 1978-06-30 1981-01-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur spulen-, relaiskontakt- und transformatorfreien Rufstrom- und Schleifenstromeinspeisung in Fernmelde-, insbesondere PCM-Fernsprechvermittlungsanlagen
FR2437116A1 (fr) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Dispositif de separation et d'equilibrage pour autocommutateurs telephoniques
NL7904159A (nl) * 1979-05-28 1980-12-02 Philips Nv Inrichting voor het toevoeren van signalen aan een telefoonlijn.
JPS5773589A (en) * 1980-10-27 1982-05-08 Oki Electric Ind Co Ltd Subscriber's circuit
US4322586A (en) * 1980-11-13 1982-03-30 Northern Telecom Limited Transformerless line interface circuit
SE452385B (sv) * 1981-02-17 1987-11-23 Western Electric Co Batterimatningskrets
US4476350A (en) * 1981-02-17 1984-10-09 Bell Telephone Laboratories, Incorporated Battery feed circuit
US4514595A (en) * 1982-06-10 1985-04-30 Northern Telecom Limited Active impedance line feed circuit
US4567331A (en) * 1983-12-22 1986-01-28 Itt Corporation Electronic hybrid having synthesized impedance circuitry

Also Published As

Publication number Publication date
IT8567455A1 (it) 1986-11-17
IT8553397V0 (it) 1985-05-17
FR2564678A1 (fr) 1985-11-22
US4752952A (en) 1988-06-21
FR2564678B1 (fr) 1986-09-12
DE3517878A1 (de) 1985-11-21
DE3517878C2 (it) 1993-04-01
IT1183840B (it) 1987-10-22

Similar Documents

Publication Publication Date Title
DE3676063D1 (de) Fernsprechleitungsschnittstellenschaltung fuer fernmeldeanlage.
GB2133659B (en) Subscriber line interface circuit
DE3378455D1 (en) Subscriber line interface circuit
IT1170299B (it) Circuito di completamento di chiamate
DE3687153D1 (de) Teilnehmerschnittstellenschaltung.
GB2091973B (en) Subscriber line interface circuit
BR8702641A (pt) Disposicao de circuito de assinante telefonico
AR231689A1 (es) Terminal de conexion de abonado telefonico
IT8467922A0 (it) Congiuntore di abbonato telefonico
DE3369048D1 (en) Subscriber telephone system
DK416987D0 (da) Telefonliniegraenseflademodul
IT8567455A0 (it) Interfaccia di collegamento di circuito d abbonato per autocommutato re telefonico
GB2111349B (en) Telecommunications terminal
ES544627A0 (es) Un circuito integrado para aparato de abonado telefonico
GB8716101D0 (en) Subscriber line interface circuit
IT1173661B (it) Circuito per la produzione di impulsi di chiamata telefonica
GB2132448B (en) Telephone subscribers' line interface circuit
FR2564270B1 (fr) Terminal de telecommunication
AT384919B (de) Schaltungsanordnung fuer fernsprechnetze
AR231890A1 (es) Aparato telefonico de abonado
ATE58985T1 (de) Fernsprechleitungsschnittstellenschaltung fuer fernmeldeanlage.
FR2590429B2 (fr) Terminal de telecommunication
AR232063A1 (es) Terminal digital de telecomunicaciones
BR8403354A (pt) Terminal telefonico integrado
ES282354Y (es) Marcador telefonico automatico

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940531