IT8322903A0 - Metodo ed apparecchiatura perl'alimentazione di corrente di un apparecchio d'abbonato da una centrale. - Google Patents

Metodo ed apparecchiatura perl'alimentazione di corrente di un apparecchio d'abbonato da una centrale.

Info

Publication number
IT8322903A0
IT8322903A0 IT8322903A IT2290383A IT8322903A0 IT 8322903 A0 IT8322903 A0 IT 8322903A0 IT 8322903 A IT8322903 A IT 8322903A IT 2290383 A IT2290383 A IT 2290383A IT 8322903 A0 IT8322903 A0 IT 8322903A0
Authority
IT
Italy
Prior art keywords
subscriber
exchange
equipment
supplying power
supplying
Prior art date
Application number
IT8322903A
Other languages
English (en)
Other versions
IT1166949B (it
Inventor
Jackie Nils Sundvall
Jan Hjalmar Johansson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IT8322903A0 publication Critical patent/IT8322903A0/it
Application granted granted Critical
Publication of IT1166949B publication Critical patent/IT1166949B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
    • 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
    • H04M19/008—Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
IT22903/83A 1982-09-17 1983-09-16 Metodo ed apparecchiatura per l'alimentazione di corrente di un apparecchio d'abbonato da una centrale IT1166949B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8205342A SE433284B (sv) 1982-09-17 1982-09-17 Anordning for strommatning av en abonnentapparat

Publications (2)

Publication Number Publication Date
IT8322903A0 true IT8322903A0 (it) 1983-09-16
IT1166949B IT1166949B (it) 1987-05-06

Family

ID=20347901

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22903/83A IT1166949B (it) 1982-09-17 1983-09-16 Metodo ed apparecchiatura per l'alimentazione di corrente di un apparecchio d'abbonato da una centrale

Country Status (9)

Country Link
US (1) US4631360A (it)
EP (1) EP0119234B1 (it)
JP (1) JPH0626399B2 (it)
KR (1) KR870000077B1 (it)
AU (1) AU562139B2 (it)
DE (1) DE3366101D1 (it)
IT (1) IT1166949B (it)
SE (1) SE433284B (it)
WO (1) WO1984001249A1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581487A (en) * 1984-07-11 1986-04-08 Itt Corporation Universal DC feed for telephone line and trunk circuits
DE3428106A1 (de) * 1984-07-30 1986-02-06 Standard Elektrik Lorenz Ag, 7000 Stuttgart Teilnehmeranschlussschaltung
US4866768A (en) * 1985-06-26 1989-09-12 Siemens Corporate Research & Support, Inc. Station line interface circuit for a telecommunication network
SE465547B (sv) * 1990-02-01 1991-09-23 Ericsson Telefon Ab L M Saett och krets foer likstroemsmatning till en telefonlinje
SE465799B (sv) * 1990-03-15 1991-10-28 Ericsson Telefon Ab L M Anordning foer reducerad effektmatning till en abonnentlinje
DE69016648T2 (de) * 1990-05-11 1995-07-06 Alcatel Nv Fernmeldeleitungsschaltung.
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
SE9400186D0 (sv) * 1994-01-21 1994-01-21 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
KR100306156B1 (ko) * 1994-08-27 2001-12-01 윤종용 전자교환기내의직류전압변압기를병렬동작시키기위한방법및장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7903662A (nl) * 1979-05-10 1980-11-12 Philips Nv Lijncircuit.
US4315106A (en) * 1979-11-28 1982-02-09 International Telephone And Telegraph Corporation Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems
GB2065418B (en) * 1979-12-06 1984-02-15 Standard Telephones Cables Ltd Telephone line feed
JPS5814606A (ja) * 1981-07-18 1983-01-27 Pioneer Electronic Corp 増幅器の電源供給回路
JPS58104558A (ja) * 1981-12-17 1983-06-22 Nippon Telegr & Teleph Corp <Ntt> 全電子化加入者回路
US4419542A (en) * 1982-05-17 1983-12-06 Bell Telephone Laboratories, Incorporated Battery feed circuit
JPS59125157A (ja) * 1982-12-30 1984-07-19 Fujitsu Ltd 給電回路

Also Published As

Publication number Publication date
JPS59501569A (ja) 1984-08-30
KR870000077B1 (ko) 1987-02-09
EP0119234B1 (en) 1986-09-10
SE433284B (sv) 1984-05-14
DE3366101D1 (en) 1986-10-16
EP0119234A1 (en) 1984-09-26
AU562139B2 (en) 1987-05-28
US4631360A (en) 1986-12-23
JPH0626399B2 (ja) 1994-04-06
SE8205342D0 (sv) 1982-09-17
SE8205342L (sv) 1984-03-18
WO1984001249A1 (en) 1984-03-29
KR840006272A (ko) 1984-11-22
AU2030783A (en) 1984-04-04
IT1166949B (it) 1987-05-06

Similar Documents

Publication Publication Date Title
IT8322958A0 (it) Metodo ed apparecchiatura perl&#39;alimentazione di corrente di un apparecchio d&#39;abbonato da una centrale.
IT8320357A0 (it) Metodo per fornire servizio di comunicazione di chiamata in un impianto telefonico dotato di memoria e servente una pluralita&#39;di apparecchi.
PH25015A (en) Electrical power transfer apparatus
IT8320356A0 (it) Impianto telefonico a memoria, servente una pluralita&#39; di apparecchi telefonici.
YU216486A (en) Device for generating previously used exchange level
AU555796B2 (en) Apparatus for cooling telecommunications equipment in a rack
IT8322903A0 (it) Metodo ed apparecchiatura perl&#39;alimentazione di corrente di un apparecchio d&#39;abbonato da una centrale.
FR2533086B1 (fr) Dispositif d&#39;alimentation electrique
GB2229063B (en) Telecommunications exchange apparatus
IT8321935A0 (it) Metodo per erogare corrente ad un telefono di abbonato da una centrale telefonica.
GB2090939B (en) Power generating apparatus
GB8304710D0 (en) Telecommunication apparatus
GB2128447B (en) Telephone exchange system test equipment
GB2234139B (en) Power circuit for telephone apparatus
GB8310430D0 (en) Telephone exchange line circuits
IT8123312A0 (it) Apparecchiatura elettronica traduttrice con memoria di dati vocali separabile, suscettibile di connessione a ciascuno di una pluralita&#39; di terminali.
FR2575618B1 (fr) Dispositif d&#39;alimentation electrique triphasee pour un ozoneur
GB8618706D0 (en) Telecommunication exchange equipment
GB2125252B (en) Telecommunication exchange network
GB8326548D0 (en) Telephone call transfer apparatus
FR2682828B1 (fr) Dispositif d&#39;alimentation en energie electrique d&#39;un ozoneur.
KR840002141Y1 (en) Tone generator for telephone exchange
GB2122844B (en) Telecommunication exchange
AU547363B2 (en) Apparatus for use in a telephone exchange
FR2682829B1 (fr) Dispositif perfectionne d&#39;alimentation en energie electrique d&#39;un ozoneur.

Legal Events

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

Effective date: 19970918