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ES416792A1 - Disposicion de circuito para la alimentacion simetrica de circuitos de llamada en centrales de telecomunicacion. - Google Patents

Disposicion de circuito para la alimentacion simetrica de circuitos de llamada en centrales de telecomunicacion.

Info

Publication number
ES416792A1
ES416792A1 ES73416792A ES416792A ES416792A1 ES 416792 A1 ES416792 A1 ES 416792A1 ES 73416792 A ES73416792 A ES 73416792A ES 416792 A ES416792 A ES 416792A ES 416792 A1 ES416792 A1 ES 416792A1
Authority
ES
Spain
Prior art keywords
call
potential
supply
direct current
circuit
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
Application number
ES73416792A
Other languages
English (en)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES416792A1 publication Critical patent/ES416792A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
ES73416792A 1972-07-12 1973-07-11 Disposicion de circuito para la alimentacion simetrica de circuitos de llamada en centrales de telecomunicacion. Expired ES416792A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT598572A AT333349B (de) 1972-07-12 1972-07-12 Schaltungsanordnung zur abschaltung des kurzschluss-gleichstromes in rufstromkreisen von fernmeldevermittlungsanlagen

Publications (1)

Publication Number Publication Date
ES416792A1 true ES416792A1 (es) 1976-02-16

Family

ID=3581690

Family Applications (2)

Application Number Title Priority Date Filing Date
ES73416792A Expired ES416792A1 (es) 1972-07-12 1973-07-11 Disposicion de circuito para la alimentacion simetrica de circuitos de llamada en centrales de telecomunicacion.
ES416860A Expired ES416860A1 (es) 1972-07-12 1973-07-12 Un circuito para la supresion de la corriente continua de corto circuito en la llamada.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES416860A Expired ES416860A1 (es) 1972-07-12 1973-07-12 Un circuito para la supresion de la corriente continua de corto circuito en la llamada.

Country Status (3)

Country Link
AT (1) AT333349B (es)
DE (1) DE2335222C2 (es)
ES (2) ES416792A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT333349B (de) * 1972-07-12 1976-11-10 Itt Austria Schaltungsanordnung zur abschaltung des kurzschluss-gleichstromes in rufstromkreisen von fernmeldevermittlungsanlagen
FR2451682A1 (fr) * 1979-03-12 1980-10-10 Jeumont Schneider Dispositif d'appel pour installation telephonique automatique d'abonne avec postes supplementaires

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT212387B (de) * 1958-01-31 1960-12-12 Siemens Ag Einrichtung zur Erzeugung wiederkehrender Impulsgruppen, insbesondere für eine elektronische Ruf- und Signalmaschine
AT333349B (de) * 1972-07-12 1976-11-10 Itt Austria Schaltungsanordnung zur abschaltung des kurzschluss-gleichstromes in rufstromkreisen von fernmeldevermittlungsanlagen

Also Published As

Publication number Publication date
ATA598572A (de) 1976-03-15
ES416860A1 (es) 1976-03-01
AT333349B (de) 1976-11-10
DE2335222C2 (de) 1981-10-08
DE2335222A1 (de) 1974-01-31

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