JPS5483397A - Fire alarming system - Google Patents

Fire alarming system

Info

Publication number
JPS5483397A
JPS5483397A JP15126277A JP15126277A JPS5483397A JP S5483397 A JPS5483397 A JP S5483397A JP 15126277 A JP15126277 A JP 15126277A JP 15126277 A JP15126277 A JP 15126277A JP S5483397 A JPS5483397 A JP S5483397A
Authority
JP
Japan
Prior art keywords
fault
receiver
monitor
repeater
unit
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.)
Pending
Application number
JP15126277A
Other languages
Japanese (ja)
Inventor
Yasuhiko Arai
Koji Ukiana
Masahisa Furuya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15126277A priority Critical patent/JPS5483397A/en
Publication of JPS5483397A publication Critical patent/JPS5483397A/en
Pending legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
  • Fire Alarms (AREA)

Abstract

PURPOSE: To increase the reliability for the system by securing the mutual monitor between the receiver and the alarm within the center unit.
CONSTITUTION: The following units are provided: repeater R to monitor the fault for more than one unit of fire detecting terminal S and the detector circuit; receiver PP to monitor the fault for more than one unit of repeater R and the repeating circuit; and alarm device QQ to display the fault information collected by receiver PP from repeater R as well as to produce the fault alarm tone. Receiver PP and device QQ form center unit CE, and PP and QQ have the mutual fault monitor within CE. Thus, the reliability of the system can be enhanced.
COPYRIGHT: (C)1979,JPO&Japio
JP15126277A 1977-12-15 1977-12-15 Fire alarming system Pending JPS5483397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15126277A JPS5483397A (en) 1977-12-15 1977-12-15 Fire alarming system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15126277A JPS5483397A (en) 1977-12-15 1977-12-15 Fire alarming system

Publications (1)

Publication Number Publication Date
JPS5483397A true JPS5483397A (en) 1979-07-03

Family

ID=15514808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15126277A Pending JPS5483397A (en) 1977-12-15 1977-12-15 Fire alarming system

Country Status (1)

Country Link
JP (1) JPS5483397A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129136U (en) * 1983-02-18 1984-08-30 オムロン株式会社 Photoelectric switch monitoring device
JP2022017546A (en) * 2017-07-07 2022-01-25 ホーチキ株式会社 Tunnel disaster prevention system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129136U (en) * 1983-02-18 1984-08-30 オムロン株式会社 Photoelectric switch monitoring device
JP2022017546A (en) * 2017-07-07 2022-01-25 ホーチキ株式会社 Tunnel disaster prevention system

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