JPS5385198A - Continuity testing circuit of fire alarms - Google Patents

Continuity testing circuit of fire alarms

Info

Publication number
JPS5385198A
JPS5385198A JP15963176A JP15963176A JPS5385198A JP S5385198 A JPS5385198 A JP S5385198A JP 15963176 A JP15963176 A JP 15963176A JP 15963176 A JP15963176 A JP 15963176A JP S5385198 A JPS5385198 A JP S5385198A
Authority
JP
Japan
Prior art keywords
testing circuit
continuity testing
fire alarms
continuity
fire
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
JP15963176A
Other languages
Japanese (ja)
Other versions
JPS5732395B2 (en
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 JP15963176A priority Critical patent/JPS5385198A/en
Publication of JPS5385198A publication Critical patent/JPS5385198A/en
Publication of JPS5732395B2 publication Critical patent/JPS5732395B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)

Abstract

PURPOSE: To facilitate the discrimination of the disconnection of detection circuits and make possible increasing the number of connections of smoke detectors by applying the counter electromotive force of a receiving relay to a continuity checking meter, in a continuity testing circuit of fire detectors.
COPYRIGHT: (C)1978,JPO&Japio
JP15963176A 1976-12-30 1976-12-30 Continuity testing circuit of fire alarms Granted JPS5385198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15963176A JPS5385198A (en) 1976-12-30 1976-12-30 Continuity testing circuit of fire alarms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15963176A JPS5385198A (en) 1976-12-30 1976-12-30 Continuity testing circuit of fire alarms

Publications (2)

Publication Number Publication Date
JPS5385198A true JPS5385198A (en) 1978-07-27
JPS5732395B2 JPS5732395B2 (en) 1982-07-10

Family

ID=15697923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15963176A Granted JPS5385198A (en) 1976-12-30 1976-12-30 Continuity testing circuit of fire alarms

Country Status (1)

Country Link
JP (1) JPS5385198A (en)

Also Published As

Publication number Publication date
JPS5732395B2 (en) 1982-07-10

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