FI811037L - Kopplingsanordning foer anslutning fraon telefonbestaellarens dubbelledningar till respektive ledning foer utgaoende och ankommande signaler - Google Patents

Kopplingsanordning foer anslutning fraon telefonbestaellarens dubbelledningar till respektive ledning foer utgaoende och ankommande signaler

Info

Publication number
FI811037L
FI811037L FI811037A FI811037A FI811037L FI 811037 L FI811037 L FI 811037L FI 811037 A FI811037 A FI 811037A FI 811037 A FI811037 A FI 811037A FI 811037 L FI811037 L FI 811037L
Authority
FI
Finland
Prior art keywords
dubbelledning
ledning
signaler
belling
freon
Prior art date
Application number
FI811037A
Other languages
English (en)
Inventor
Peter Scholich
Original Assignee
Nixdorf Computer 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 Nixdorf Computer Ag filed Critical Nixdorf Computer Ag
Publication of FI811037L publication Critical patent/FI811037L/fi

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FI811037A 1980-04-14 1981-04-03 Kopplingsanordning foer anslutning fraon telefonbestaellarens dubbelledningar till respektive ledning foer utgaoende och ankommande signaler FI811037L (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3014187A DE3014187C2 (de) 1980-04-14 1980-04-14 Schaltungsanordnung zum zweidrähtigen Anschluß eines Fernsprechteilnehmers an je eine Leitung für angehende und ankommende Signale

Publications (1)

Publication Number Publication Date
FI811037L true FI811037L (fi) 1981-10-15

Family

ID=6099901

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811037A FI811037L (fi) 1980-04-14 1981-04-03 Kopplingsanordning foer anslutning fraon telefonbestaellarens dubbelledningar till respektive ledning foer utgaoende och ankommande signaler

Country Status (5)

Country Link
US (1) US4445006A (fi)
EP (1) EP0037940B1 (fi)
AT (1) ATE8449T1 (fi)
DE (1) DE3014187C2 (fi)
FI (1) FI811037L (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612417A (en) * 1984-07-27 1986-09-16 At&T Bell Laboratories Electronic battery feed circuit for telephone systems
US4727574A (en) * 1985-09-24 1988-02-23 Northern Telecom Limited Subscriber line interface circuit with improved d.c. balance
KR100311219B1 (ko) * 1999-12-24 2001-10-12 오길록 트랜스하이브리드 손실성능이 향상된 전자식 하이브리드회로
AU2001288933A1 (en) * 2000-09-06 2002-03-22 Polycom, Inc. System and method for diagnosing a pots port

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT274904B (de) * 1965-10-12 1969-10-10 Western Electric Co Teilnehmerschaltung zum Verbinden der Sprechadern von Fernsprech-Teilnehmerstellen mit Vermittlungsnetzwerk-Sprechadern
FR2157150A5 (fi) * 1971-10-20 1973-06-01 Labo Cent Telecommunicat
BE792329A (fr) * 1971-12-09 1973-06-06 Int Standard Electric Corp Circuit de transmission electronique pour poste telephonique
US3970805A (en) * 1974-02-22 1976-07-20 Gte Automatic Electric (Canada) Limited Active hybrid circuit
FR2275098A1 (fr) * 1974-06-12 1976-01-09 Cit Alcatel Detecteur de signaux
CH599731A5 (fi) * 1976-03-02 1978-05-31 Ibm
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
US4087647A (en) * 1977-05-25 1978-05-02 Bell Telephone Laboratories, Incorporated Circuit for supplying direct current to telephone station sets
US4163878A (en) * 1977-09-07 1979-08-07 Wescom, Inc. Electronic hybrid and hybrid repeater with bridge circuit
US4300023A (en) * 1979-08-13 1981-11-10 Motorola, Inc. Hybrid circuit
US4388500A (en) * 1981-02-27 1983-06-14 Wescom, Inc. Electronic hybrid

Also Published As

Publication number Publication date
EP0037940B1 (de) 1984-07-11
DE3014187A1 (de) 1981-10-15
DE3014187C2 (de) 1983-11-17
EP0037940A1 (de) 1981-10-21
ATE8449T1 (de) 1984-07-15
US4445006A (en) 1984-04-24

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: NIXDORF COMPUTER AG