ES476875A1 - Disposicion de timbre para empalme de central telefonica con unidad de mando centralizada. - Google Patents

Disposicion de timbre para empalme de central telefonica con unidad de mando centralizada.

Info

Publication number
ES476875A1
ES476875A1 ES476875A ES476875A ES476875A1 ES 476875 A1 ES476875 A1 ES 476875A1 ES 476875 A ES476875 A ES 476875A ES 476875 A ES476875 A ES 476875A ES 476875 A1 ES476875 A1 ES 476875A1
Authority
ES
Spain
Prior art keywords
subscriber
telephone exchange
timer
signal source
electronic switch
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
ES476875A
Other languages
English (en)
Spanish (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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Publication of ES476875A1 publication Critical patent/ES476875A1/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)
  • Monitoring And Testing Of Exchanges (AREA)
ES476875A 1978-01-17 1979-01-16 Disposicion de timbre para empalme de central telefonica con unidad de mando centralizada. Expired ES476875A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7801170A FR2423096A1 (fr) 1978-01-17 1978-01-17 Agencement de sonnerie pour joncteur de central telephonique a unite de commande centralisee

Publications (1)

Publication Number Publication Date
ES476875A1 true ES476875A1 (es) 1979-05-16

Family

ID=9203528

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476875A Expired ES476875A1 (es) 1978-01-17 1979-01-16 Disposicion de timbre para empalme de central telefonica con unidad de mando centralizada.

Country Status (5)

Country Link
BE (1) BE873499A (fr)
DE (1) DE2901739A1 (fr)
ES (1) ES476875A1 (fr)
FR (1) FR2423096A1 (fr)
IT (1) IT1111760B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU39444B (en) * 1979-09-07 1984-12-31 Iskra Sozd Elektro Indus Subschribes circuit for domestic electronic telephone exchangers
IT1128374B (it) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom Circuito telefonico per la generazione del ritmo di suoneria ed il riconoscimento dello sgancio
US4349703A (en) * 1980-03-31 1982-09-14 International Telephone And Telegraph Corporation Programmable ring signal generator
DE3036686C2 (de) * 1980-09-29 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlußschaltung
DE3141375A1 (de) * 1981-10-17 1983-06-30 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren und schaltungsanordnung zur erfassung von schleifenstromkriterien in einer fernmeldeanlage

Also Published As

Publication number Publication date
IT1111760B (it) 1986-01-13
DE2901739A1 (de) 1979-07-19
FR2423096B1 (fr) 1981-10-16
FR2423096A1 (fr) 1979-11-09
IT7919275A0 (it) 1979-01-15
BE873499A (fr) 1979-05-16

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