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JPS5333599A - Simultaneous operation inspecting circuit of in fire alarm systems - Google Patents

Simultaneous operation inspecting circuit of in fire alarm systems

Info

Publication number
JPS5333599A
JPS5333599A JP10859576A JP10859576A JPS5333599A JP S5333599 A JPS5333599 A JP S5333599A JP 10859576 A JP10859576 A JP 10859576A JP 10859576 A JP10859576 A JP 10859576A JP S5333599 A JPS5333599 A JP S5333599A
Authority
JP
Japan
Prior art keywords
fire alarm
simultaneous operation
alarm systems
inspecting circuit
operation inspecting
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
JP10859576A
Other languages
Japanese (ja)
Inventor
Masatoshi Maeda
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10859576A priority Critical patent/JPS5333599A/en
Publication of JPS5333599A publication Critical patent/JPS5333599A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To know the operating state of all detectors by one checking operation by inserting low resistors alternately between detectors of a detector circuit, providing a voltage measuring device between one line returned from the final end of the circuit and the output end of a receiver and detecting its instructions.
JP10859576A 1976-09-09 1976-09-09 Simultaneous operation inspecting circuit of in fire alarm systems Pending JPS5333599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10859576A JPS5333599A (en) 1976-09-09 1976-09-09 Simultaneous operation inspecting circuit of in fire alarm systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10859576A JPS5333599A (en) 1976-09-09 1976-09-09 Simultaneous operation inspecting circuit of in fire alarm systems

Publications (1)

Publication Number Publication Date
JPS5333599A true JPS5333599A (en) 1978-03-29

Family

ID=14488779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10859576A Pending JPS5333599A (en) 1976-09-09 1976-09-09 Simultaneous operation inspecting circuit of in fire alarm systems

Country Status (1)

Country Link
JP (1) JPS5333599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115620A (en) * 2006-11-06 2008-05-22 Ｙｋｋ Ａｐ株式会社 Surface material drive unit and fitting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115620A (en) * 2006-11-06 2008-05-22 Ｙｋｋ Ａｐ株式会社 Surface material drive unit and fitting

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