JPH0215110B2 - - Google Patents

Info

Publication number
JPH0215110B2
JPH0215110B2 JP58226143A JP22614383A JPH0215110B2 JP H0215110 B2 JPH0215110 B2 JP H0215110B2 JP 58226143 A JP58226143 A JP 58226143A JP 22614383 A JP22614383 A JP 22614383A JP H0215110 B2 JPH0215110 B2 JP H0215110B2
Authority
JP
Japan
Prior art keywords
voltage
circuit
resistor
constant voltage
power supply
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.)
Expired - Lifetime
Application number
JP58226143A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60117398A (ja
Inventor
Shigeru Matsumoto
Shuji Tojo
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 JP58226143A priority Critical patent/JPS60117398A/ja
Publication of JPS60117398A publication Critical patent/JPS60117398A/ja
Publication of JPH0215110B2 publication Critical patent/JPH0215110B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Fire Alarms (AREA)
JP58226143A 1983-11-29 1983-11-29 火災報知用受信機の断線検出回路 Granted JPS60117398A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58226143A JPS60117398A (ja) 1983-11-29 1983-11-29 火災報知用受信機の断線検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58226143A JPS60117398A (ja) 1983-11-29 1983-11-29 火災報知用受信機の断線検出回路

Publications (2)

Publication Number Publication Date
JPS60117398A JPS60117398A (ja) 1985-06-24
JPH0215110B2 true JPH0215110B2 (en]) 1990-04-11

Family

ID=16840526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58226143A Granted JPS60117398A (ja) 1983-11-29 1983-11-29 火災報知用受信機の断線検出回路

Country Status (1)

Country Link
JP (1) JPS60117398A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426945Y2 (en]) * 1985-08-16 1992-06-29
JPH0734238B2 (ja) * 1986-11-26 1995-04-12 松下電工株式会社 警報監視回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL37120A (en) * 1970-07-27 1974-09-10 Siemens Ag A mechanical filter
JPS5845759B2 (ja) * 1975-12-30 1983-10-12 松下電工株式会社 カホウケイホウソウチニオケル カサイカンチキカイセンノシユンジドウツウシケンカイロ
JPS53106596A (en) * 1977-02-28 1978-09-16 Matsushita Electric Works Ltd Continuity testing system
JPS5476098A (en) * 1977-11-30 1979-06-18 Matsushita Electric Works Ltd Normal monitor system for open wire
JPS5518767A (en) * 1978-07-26 1980-02-09 Matsushita Electric Works Ltd Fire alarm unit continuity testing circuit
JPS5797197A (en) * 1980-12-08 1982-06-16 Takenaka Komuten Co Detector for disconnection or the like of automatic emergency alarm

Also Published As

Publication number Publication date
JPS60117398A (ja) 1985-06-24

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