ES8104693A1 - Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico - Google Patents

Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico

Info

Publication number
ES8104693A1
ES8104693A1 ES493899A ES493899A ES8104693A1 ES 8104693 A1 ES8104693 A1 ES 8104693A1 ES 493899 A ES493899 A ES 493899A ES 493899 A ES493899 A ES 493899A ES 8104693 A1 ES8104693 A1 ES 8104693A1
Authority
ES
Spain
Prior art keywords
telephone line
transmission device
modem
circuit arrangement
data signals
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
ES493899A
Other languages
English (en)
Other versions
ES493899A0 (es
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.)
Siemens AG
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 ES8104693A1 publication Critical patent/ES8104693A1/es
Publication of ES493899A0 publication Critical patent/ES493899A0/es
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Communication Control (AREA)
  • Communication Cables (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

DISPOSITIVO DE CONEXION QUE EVITE EL CORTOCIRCUITADO DE LAS SEÑALES DE DATOS Y POSIBILITE EL FUNCIONAMIENTO DEL NIVEL DE REGULACION DURANTE LA GENERACION DE IMPULSOS MARCADOS PARA APLICAR INSTALACIONES DE TRANSMISION DE UN MODULADOR/DEMODULADOR A UN CIRCUITO TELEFONICO. CONSTA DE UN FILTRO DE FRECUENCIA (F) CONECTADO AL CIRCUITO TELEFONICO (FL), POR UNA PARTE, Y AL NIVEL DE REGULACION (R) E INSTALACION DE TRANSMISION (UB), POR OTRA. FORMA UNA UNION GALVANICA SEPARADA, PERMEABLE A LAS SEÑALES DE DATOS (D) ENTRE EL CIRCUITO TELEFONICO (FL) Y LA INSTALACION DE TRANSMISION (UB); TAMBIEN FORMA UNA UNION GALVANICA PERMEABLE A LOS IMPULSOS DE MARCADO Y BLOQUEA LAS SEÑALES DE DATOS (D), ENTRE EL CIRCUITO TELEFONICO (FL) Y EL NIVEL DE REGULACION (R). LOS IMPULSOS DE MARCADO SE GENERAN POR UN CONMUTADOR NSI.
ES493899A 1979-08-02 1980-07-31 Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico Granted ES493899A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2931464A DE2931464C2 (de) 1979-08-02 1979-08-02 Schaltungsanordnung zum Anschließen einer Übertragungseinrichtung eines Modems an eine Fernsprechleitung

Publications (2)

Publication Number Publication Date
ES8104693A1 true ES8104693A1 (es) 1981-04-01
ES493899A0 ES493899A0 (es) 1981-04-01

Family

ID=6077507

Family Applications (1)

Application Number Title Priority Date Filing Date
ES493899A Granted ES493899A0 (es) 1979-08-02 1980-07-31 Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico

Country Status (9)

Country Link
EP (1) EP0023692B1 (es)
AT (1) ATE4015T1 (es)
DE (1) DE2931464C2 (es)
DK (1) DK332380A (es)
ES (1) ES493899A0 (es)
FI (1) FI802427A (es)
NO (1) NO147579C (es)
PT (1) PT71639B (es)
YU (1) YU194780A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122843B (en) * 1982-03-30 1985-10-30 Guestel Limited Telephone interface unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472442A (en) * 1974-07-30 1977-05-04 Standard Telephones Cables Ltd Power supply circuits
DE2814837C2 (de) * 1978-04-06 1980-01-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Datenmodem, insbesondere für Bildschirmtextbetrieb

Also Published As

Publication number Publication date
NO147579B (no) 1983-01-24
DK332380A (da) 1981-02-03
PT71639A (de) 1980-09-01
EP0023692B1 (de) 1983-06-29
ATE4015T1 (de) 1983-07-15
YU194780A (en) 1982-10-31
NO802248L (no) 1981-02-03
NO147579C (no) 1983-05-04
DE2931464B1 (de) 1981-01-22
ES493899A0 (es) 1981-04-01
DE2931464C2 (de) 1981-10-08
EP0023692A1 (de) 1981-02-11
FI802427A (fi) 1981-02-03
PT71639B (de) 1981-06-26

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