FR2453575A1 - Equipement de signalisation multifrequence a commande centralisee - Google Patents

Equipement de signalisation multifrequence a commande centralisee

Info

Publication number
FR2453575A1
FR2453575A1 FR7908781A FR7908781A FR2453575A1 FR 2453575 A1 FR2453575 A1 FR 2453575A1 FR 7908781 A FR7908781 A FR 7908781A FR 7908781 A FR7908781 A FR 7908781A FR 2453575 A1 FR2453575 A1 FR 2453575A1
Authority
FR
France
Prior art keywords
receiver
multifrequency
transmitter
microprocessor
switch circuits
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.)
Granted
Application number
FR7908781A
Other languages
English (en)
Other versions
FR2453575B1 (fr
Inventor
Michel Beaute
Roberto Cordani
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT 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 CIT SA filed Critical Alcatel CIT SA
Priority to FR7908781A priority Critical patent/FR2453575A1/fr
Publication of FR2453575A1 publication Critical patent/FR2453575A1/fr
Application granted granted Critical
Publication of FR2453575B1 publication Critical patent/FR2453575B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

L'invention concerne la signalisation. Equipement de signalisation multifréquence piloté par un microprocesseur. Les organes de relayage de la signalisation multifréquence entre les jonctions entrantes et sortantes du central et les organes émetteurs-récepteurs de ladite signalisation sont constitués par n interfaces de lignes reliés à deux ensembles de réception multifréquence par l'intermédiaire d'un commutateur de réception, et à un ensemble d'émission multifréquence par l'intermédiaire de n commutateurs d'émission. Application aux centraux téléphoniques.
FR7908781A 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee Granted FR2453575A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7908781A FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908781A FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Publications (2)

Publication Number Publication Date
FR2453575A1 true FR2453575A1 (fr) 1980-10-31
FR2453575B1 FR2453575B1 (fr) 1982-03-19

Family

ID=9224070

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908781A Granted FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Country Status (1)

Country Link
FR (1) FR2453575A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280141A1 (fr) * 1974-07-26 1976-02-20 Materiel Telephonique Systeme de signalisation entre centres de traitement d'informations
FR2391622A1 (fr) * 1977-05-18 1978-12-15 Materiel Telephonique Systeme de signalisation multifrequence
FR2404365A1 (fr) * 1977-09-21 1979-04-20 Materiel Telephonique Central telephonique a barres croisees comportant un systeme d'enregistreurs a processeurs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280141A1 (fr) * 1974-07-26 1976-02-20 Materiel Telephonique Systeme de signalisation entre centres de traitement d'informations
FR2391622A1 (fr) * 1977-05-18 1978-12-15 Materiel Telephonique Systeme de signalisation multifrequence
FR2404365A1 (fr) * 1977-09-21 1979-04-20 Materiel Telephonique Central telephonique a barres croisees comportant un systeme d'enregistreurs a processeurs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *
EXBK/78 *

Also Published As

Publication number Publication date
FR2453575B1 (fr) 1982-03-19

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Legal Events

Date Code Title Description
ST Notification of lapse