FR2361705A1 - Installation d'avertissement d'incendie comportant plusieurs capteurs exploites avec une boucle d'information - Google Patents

Installation d'avertissement d'incendie comportant plusieurs capteurs exploites avec une boucle d'information

Info

Publication number
FR2361705A1
FR2361705A1 FR7724308A FR7724308A FR2361705A1 FR 2361705 A1 FR2361705 A1 FR 2361705A1 FR 7724308 A FR7724308 A FR 7724308A FR 7724308 A FR7724308 A FR 7724308A FR 2361705 A1 FR2361705 A1 FR 2361705A1
Authority
FR
France
Prior art keywords
loop
coupled
monitoring station
fire alarm
transmission
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.)
Withdrawn
Application number
FR7724308A
Other languages
English (en)
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 FR2361705A1 publication Critical patent/FR2361705A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)

Abstract

a. Installation d'avertissement d'incendie comportant plusieurs capteurs exploités avec une boucle d'information. b. Installation caractérisée en ce que chacun des commutateurs d'interrogation, appartenant aux capteurs individuels branchés en série l'un derrière l'autre dans la boucle d'information, est constitué par deux transistors de même catégorie, par exemple deux transistors p-n-p, branchés l'un apres l'autre suivant un montage Darlington et par une diode branchée sur le collecteur du premier transistor suivant un montage anti-polaire avec la diode base collecteur. c. L'invention s'applique notamment aux installations d'alarme comportant un grand nombre de détecteurs d'alarme.
FR7724308A 1976-08-09 1977-08-05 Installation d'avertissement d'incendie comportant plusieurs capteurs exploites avec une boucle d'information Withdrawn FR2361705A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762635763 DE2635763A1 (de) 1976-08-09 1976-08-09 Brandmeldeanlage mit mehreren ueber eine meldeschleife betreibbaren meldern

Publications (1)

Publication Number Publication Date
FR2361705A1 true FR2361705A1 (fr) 1978-03-10

Family

ID=5985047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724308A Withdrawn FR2361705A1 (fr) 1976-08-09 1977-08-05 Installation d'avertissement d'incendie comportant plusieurs capteurs exploites avec une boucle d'information

Country Status (6)

Country Link
JP (1) JPS5320798A (fr)
DE (1) DE2635763A1 (fr)
FR (1) FR2361705A1 (fr)
IT (1) IT1085725B (fr)
NL (1) NL7708750A (fr)
SE (1) SE7708964L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836760C2 (de) * 1978-08-23 1983-11-17 Dr. Alfred Ristow GmbH & Co, 7500 Karlsruhe Elektronisches Fernüberwachungssystem
JPS58127292A (ja) * 1982-01-26 1983-07-29 ニツタン株式会社 火災感知システム
US4616138A (en) * 1983-11-29 1986-10-07 Hochiki Corporation Analog-type fire detector
DE19631302B4 (de) * 1996-08-02 2006-12-14 Leuze Electronic Gmbh & Co Kg Sensor-Aktor-Bussystem

Also Published As

Publication number Publication date
SE7708964L (sv) 1978-02-10
DE2635763A1 (de) 1978-02-16
NL7708750A (nl) 1978-02-13
JPS5320798A (en) 1978-02-25
IT1085725B (it) 1985-05-28

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Legal Events

Date Code Title Description
ST Notification of lapse