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AT343185B - CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM - Google Patents

CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM

Info

Publication number
AT343185B
AT343185B AT640274A AT640274A AT343185B AT 343185 B AT343185 B AT 343185B AT 640274 A AT640274 A AT 640274A AT 640274 A AT640274 A AT 640274A AT 343185 B AT343185 B AT 343185B
Authority
AT
Austria
Prior art keywords
telephone
circuit arrangement
switching system
subscriber
subscriber station
Prior art date
Application number
AT640274A
Other languages
German (de)
Other versions
ATA640274A (en
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ATA640274A publication Critical patent/ATA640274A/en
Application granted granted Critical
Publication of AT343185B publication Critical patent/AT343185B/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
    • H04M19/008—Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
AT640274A 1973-09-21 1974-08-05 CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM AT343185B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732347696 DE2347696C3 (en) 1973-09-21 1973-09-21 Circuit arrangement for feeding subscriber lines in telephone switching systems

Publications (2)

Publication Number Publication Date
ATA640274A ATA640274A (en) 1977-09-15
AT343185B true AT343185B (en) 1978-05-10

Family

ID=5893326

Family Applications (1)

Application Number Title Priority Date Filing Date
AT640274A AT343185B (en) 1973-09-21 1974-08-05 CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM

Country Status (7)

Country Link
AT (1) AT343185B (en)
CH (1) CH575200A5 (en)
DE (1) DE2347696C3 (en)
DK (1) DK497474A (en)
FI (1) FI269974A (en)
IN (1) IN140059B (en)
IT (1) IT1021492B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11334762B1 (en) 2017-09-07 2022-05-17 Aurora Operations, Inc. Method for image analysis

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1584778A (en) * 1976-09-17 1981-02-18 Gen Electric Telecommunication exchanges
NL7802423A (en) * 1978-03-06 1979-09-10 Philips Nv POWER SUPPLY FOR A LINE CURRENT.
NL7802421A (en) * 1978-03-06 1979-09-10 Philips Nv POWER SUPPLY FOR A SUBSCRIPTION LINE CURRENT.
US4761812A (en) * 1985-12-10 1988-08-02 U.S. Holding Company, Inc. Constant power telephone line circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11334762B1 (en) 2017-09-07 2022-05-17 Aurora Operations, Inc. Method for image analysis
US12056209B2 (en) 2017-09-07 2024-08-06 Aurora Operations, Inc Method for image analysis

Also Published As

Publication number Publication date
IT1021492B (en) 1978-01-30
IN140059B (en) 1976-09-04
DE2347696A1 (en) 1975-04-03
FI269974A (en) 1975-03-22
DE2347696B2 (en) 1978-04-27
CH575200A5 (en) 1976-04-30
ATA640274A (en) 1977-09-15
DK497474A (en) 1975-06-02
DE2347696C3 (en) 1978-12-21

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