ES460067A1 - Un dispositivo de supervision de alarmas para una central mic (modulacion por impulsos codificados). - Google Patents

Un dispositivo de supervision de alarmas para una central mic (modulacion por impulsos codificados).

Info

Publication number
ES460067A1
ES460067A1 ES460067A ES460067A ES460067A1 ES 460067 A1 ES460067 A1 ES 460067A1 ES 460067 A ES460067 A ES 460067A ES 460067 A ES460067 A ES 460067A ES 460067 A1 ES460067 A1 ES 460067A1
Authority
ES
Spain
Prior art keywords
alarm
interrogator
telephone exchange
digital signals
units
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
ES460067A
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.)
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 ES460067A1 publication Critical patent/ES460067A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
ES460067A 1976-06-25 1977-06-23 Un dispositivo de supervision de alarmas para una central mic (modulacion por impulsos codificados). Expired ES460067A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619399A FR2356335A1 (fr) 1976-06-25 1976-06-25 Dispositif de supervision d'alarmes dans un central mic

Publications (1)

Publication Number Publication Date
ES460067A1 true ES460067A1 (es) 1978-04-16

Family

ID=9174875

Family Applications (1)

Application Number Title Priority Date Filing Date
ES460067A Expired ES460067A1 (es) 1976-06-25 1977-06-23 Un dispositivo de supervision de alarmas para una central mic (modulacion por impulsos codificados).

Country Status (3)

Country Link
BE (1) BE856057A (fr)
ES (1) ES460067A1 (fr)
FR (1) FR2356335A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462750A1 (fr) * 1979-08-03 1981-02-13 Cit Alcatel Dispositif logique de pretraitement d'alarmes
ZA804385B (en) * 1979-08-10 1981-07-29 Plessey Co Ltd Alarm monitoring arrangements for digital telecommunications switching networks
IT8003534A0 (it) * 1980-10-07 1980-10-07 Italtel Spa Apparecchiatura per la gestione delle informazioni, relative a segnalazioni di allarme e/o di risposta a messaggi di controllo e/o autocontrollo, interessanti unarete di transito per sistemi di telecomunicazioni a divisione di tempo
ES2114823B1 (es) * 1996-06-27 1999-02-16 Indetel Ingenieria S L Concentrador-repartidor de alarmas para equipos de transmision.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435416A (en) * 1964-10-29 1969-03-25 Bell Telephone Labor Inc Monitoring and control system
DE2202110B2 (de) * 1972-01-18 1974-03-21 Gerhard Dr.-Ing. 8000 Muenchen Gruenberger Einrichtung zum Überwachen einer Anzahl von Meldestellen
SE391251B (sv) * 1974-11-26 1977-02-07 Saab Scania Ab Bevakningsanleggning, med forbindelsekontroll, innefattande en centralenhet, som via telenetet er forbunden med ett flertal lokala terminalenheter
SE391250B (sv) * 1974-11-26 1977-02-07 Saab Scania Ab Bevakningsanleggning, innefattande en centralenhet, somŸvia en kommunikationskanal er forbunden med ett flertal lokala terminalenheter

Also Published As

Publication number Publication date
BE856057A (fr) 1977-12-27
FR2356335A1 (fr) 1978-01-20
FR2356335B1 (fr) 1983-01-07

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991115