DE3886513D1 - Fernsprechschnittstellenschaltung. - Google Patents

Fernsprechschnittstellenschaltung.

Info

Publication number
DE3886513D1
DE3886513D1 DE88312358T DE3886513T DE3886513D1 DE 3886513 D1 DE3886513 D1 DE 3886513D1 DE 88312358 T DE88312358 T DE 88312358T DE 3886513 T DE3886513 T DE 3886513T DE 3886513 D1 DE3886513 D1 DE 3886513D1
Authority
DE
Germany
Prior art keywords
interface circuit
telephone interface
telephone
circuit
interface
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 - Fee Related
Application number
DE88312358T
Other languages
English (en)
Other versions
DE3886513T2 (de
Inventor
Marco Siligoni
Emilio Lorena
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.)
STMicroelectronics SRL
Original Assignee
SGS Thomson Microelectronics SRL
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 SGS Thomson Microelectronics SRL filed Critical SGS Thomson Microelectronics SRL
Application granted granted Critical
Publication of DE3886513D1 publication Critical patent/DE3886513D1/de
Publication of DE3886513T2 publication Critical patent/DE3886513T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
DE88312358T 1987-12-28 1988-12-28 Fernsprechschnittstellenschaltung. Expired - Fee Related DE3886513T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23236/87A IT1223618B (it) 1987-12-28 1987-12-28 Circuito di interfaccia tra linea telefonica d'utente ed organi di comando centrale, con limitazione del consumo di corrente in caso di cavo a terra

Publications (2)

Publication Number Publication Date
DE3886513D1 true DE3886513D1 (de) 1994-02-03
DE3886513T2 DE3886513T2 (de) 1994-04-21

Family

ID=11205201

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88312358T Expired - Fee Related DE3886513T2 (de) 1987-12-28 1988-12-28 Fernsprechschnittstellenschaltung.

Country Status (4)

Country Link
US (1) US4897872A (de)
EP (1) EP0323223B1 (de)
DE (1) DE3886513T2 (de)
IT (1) IT1223618B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5113426A (en) * 1989-01-19 1992-05-12 Fujitsu Limited Ground fault detector
US5163090A (en) * 1990-10-18 1992-11-10 Ag Communication Systems Corporation Over-current verifier circuit for an enhanced subscriber line interface
IT1244074B (it) * 1990-10-24 1994-07-05 Sgs Thomson Microelectronics Dispositivo di protezione di circuiti elettrici e/o elettronici di telefoni atto a limitare la potenza dissipata in essi.
IT1252324B (it) * 1991-07-18 1995-06-08 Sgs Thomson Microelectronics Circuito integrato regolatore di tensione ad elevata stabilita' e basso consumo di corrente.
US5390231A (en) * 1993-04-01 1995-02-14 Northern Telecom Limited Protection and recovery of telephone line interface circuits
DE4412811A1 (de) * 1994-04-14 1995-10-19 Philips Patentverwaltung Vermittlungsvorrichtung mit einer Speiseschaltung zur Gleichstromversorgung eines Teilnehmerendgeräts
CN113271095B (zh) * 2021-04-22 2022-03-18 巨风芯科技(深圳)有限公司 一种共模瞬变抗扰电路及调制解调电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491704B1 (fr) * 1980-10-03 1985-06-07 Constr Telephoniques Circuit d'alimentation d'une ligne telephonique
AR241565A1 (es) * 1984-12-19 1992-08-31 Siemens Ag Disposicion de circuito para proteger un circuito de alimentacion de abonado en una central de enlace telefonico, preferentemente digital
IT1215254B (it) * 1985-03-20 1990-01-31 Ates Componenti Elettron Circuito, integrabile monoliticamente, per la misura di correnti longitudinali e trasversali in una linea ditrasmissione bifilare.
CA1233583A (en) * 1985-06-18 1988-03-01 Francis Y. Hung Protection arrangement for a telephone subscriber line interface circuit

Also Published As

Publication number Publication date
EP0323223A3 (en) 1990-08-08
DE3886513T2 (de) 1994-04-21
US4897872A (en) 1990-01-30
EP0323223B1 (de) 1993-12-22
IT8723236A0 (it) 1987-12-28
IT1223618B (it) 1990-09-29
EP0323223A2 (de) 1989-07-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee