FR2292293A1 - Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement - Google Patents

Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement

Info

Publication number
FR2292293A1
FR2292293A1 FR7438399A FR7438399A FR2292293A1 FR 2292293 A1 FR2292293 A1 FR 2292293A1 FR 7438399 A FR7438399 A FR 7438399A FR 7438399 A FR7438399 A FR 7438399A FR 2292293 A1 FR2292293 A1 FR 2292293A1
Authority
FR
France
Prior art keywords
wire
pilot
wires
pilot wire
surveillance system
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
FR7438399A
Other languages
English (en)
French (fr)
Other versions
FR2292293B3 (enExample
Inventor
Jean-Paul Levoir
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.)
SEPMIS
Original Assignee
SEPMIS
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 SEPMIS filed Critical SEPMIS
Priority to FR7438399A priority Critical patent/FR2292293A1/fr
Publication of FR2292293A1 publication Critical patent/FR2292293A1/fr
Application granted granted Critical
Publication of FR2292293B3 publication Critical patent/FR2292293B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Selective Calling Equipment (AREA)
FR7438399A 1974-11-22 1974-11-22 Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement Granted FR2292293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438399A FR2292293A1 (fr) 1974-11-22 1974-11-22 Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438399A FR2292293A1 (fr) 1974-11-22 1974-11-22 Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement

Publications (2)

Publication Number Publication Date
FR2292293A1 true FR2292293A1 (fr) 1976-06-18
FR2292293B3 FR2292293B3 (enExample) 1977-08-26

Family

ID=9145164

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438399A Granted FR2292293A1 (fr) 1974-11-22 1974-11-22 Systeme de detection ou de surveillance a distance dont la ligne de raccordement est munie d'un dispositif permettant d'en controler le bon etat de fonctionnement

Country Status (1)

Country Link
FR (1) FR2292293A1 (enExample)

Also Published As

Publication number Publication date
FR2292293B3 (enExample) 1977-08-26

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