BE750104A - TELEPHONE STATION POWER SUPPLY - Google Patents

TELEPHONE STATION POWER SUPPLY

Info

Publication number
BE750104A
BE750104A BE750104DA BE750104A BE 750104 A BE750104 A BE 750104A BE 750104D A BE750104D A BE 750104DA BE 750104 A BE750104 A BE 750104A
Authority
BE
Belgium
Prior art keywords
power supply
telephone station
station power
telephone
supply
Prior art date
Application number
Other languages
French (fr)
Inventor
G Beszedics
H Loreck
Standard Telephon Und T Czeija
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BE750104A publication Critical patent/BE750104A/en

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)
  • Measurement Of Current Or Voltage (AREA)
  • Interface Circuits In Exchanges (AREA)
BE750104D 1969-05-09 1970-05-08 TELEPHONE STATION POWER SUPPLY BE750104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT449669A AT291356B (en) 1969-05-09 1969-05-09 Circuit arrangement for the automatic maintenance of the symmetry of supply circuits for subscriber stations in telecommunication systems using transistors

Publications (1)

Publication Number Publication Date
BE750104A true BE750104A (en) 1970-11-09

Family

ID=3564787

Family Applications (1)

Application Number Title Priority Date Filing Date
BE750104D BE750104A (en) 1969-05-09 1970-05-08 TELEPHONE STATION POWER SUPPLY

Country Status (6)

Country Link
AT (1) AT291356B (en)
BE (1) BE750104A (en)
CH (1) CH512863A (en)
DE (1) DE2020527A1 (en)
FR (1) FR2047455A5 (en)
GB (1) GB1239537A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372554A1 (en) * 1976-11-25 1978-06-23 Jeumont Schneider SUBSCRIBER LINE EQUIPMENT FOR TELEPHONE CENTRAL
DE2838038A1 (en) * 1978-08-31 1980-03-13 Siemens Ag Input circuit for telephone wire connection - has transistors, connected via collectors, to two wire and via transformer to four wire cable with supply to base and emitters
FR2442557A1 (en) * 1978-11-22 1980-06-20 Labo Cent Telecommunicat Automatic telephone line asymmetrical signal balancing - using synthetic centre tap on power supply and regulation of supply transistors
DE3032970C2 (en) * 1980-09-02 1987-04-16 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for symmetrizing the operating points of electronically DC-fed connecting lines in telecommunications systems, in particular telephone exchanges
JPS60157369A (en) * 1984-01-26 1985-08-17 Iwatsu Electric Co Ltd Speech current supply circuit

Also Published As

Publication number Publication date
CH512863A (en) 1971-09-15
AT291356B (en) 1971-07-12
FR2047455A5 (en) 1971-03-12
GB1239537A (en) 1971-07-14
DE2020527A1 (en) 1970-12-23

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