JPS62117688U - - Google Patents

Info

Publication number
JPS62117688U
JPS62117688U JP201686U JP201686U JPS62117688U JP S62117688 U JPS62117688 U JP S62117688U JP 201686 U JP201686 U JP 201686U JP 201686 U JP201686 U JP 201686U JP S62117688 U JPS62117688 U JP S62117688U
Authority
JP
Japan
Prior art keywords
pair
lines
circuit
normally closed
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.)
Pending
Application number
JP201686U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP201686U priority Critical patent/JPS62117688U/ja
Publication of JPS62117688U publication Critical patent/JPS62117688U/ja
Pending legal-status Critical Current

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  • Fire Alarms (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は、この考案の警報装置の線路切り離し回
路の一実施例を示す回路図である。 Ｒ１〜Ｒ５……抵抗、Ｄ……ダイオード、Ｃ…
…コンデンサ、Ｚ……ツエナーダイオード、ＩＣ
１，ＩＣ２……比較器、ＲＳ１，ＲＳ２……リレ
ー、ｒｓ１，ｒｓ２……リレー、ＲＳ１，ＲＳ２
の常閉接点。 The drawing is a circuit diagram showing one embodiment of the line disconnection circuit of the alarm device of this invention. R1 to R5...Resistance, D...Diode, C...
...Capacitor, Z...Zener diode, IC
1, IC2... Comparator, RS1, RS2... Relay, rs1, rs2... Relay, RS1, RS2
Normally closed contact.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源または電源兼信号用の一対の線路に挿入さ
れ、該一対の線路間が短絡した時に上記一対の線
路の短絡区画を切り離すようにした警報装置の線
路切り離し回路において、上記線路に挿入された
リレーの常閉接点と、該常閉接点に並列接続され
た電流制限用の抵抗と、上記一対の線路の所定電
圧以下を検出し上記リレーを駆動する電圧検出回
路とを具備したことを特徴とする警報装置の線路
切り離し回路。 A relay inserted into a pair of power supply or power supply/signal lines, in a line disconnection circuit of an alarm device, which disconnects the short-circuit section of the pair of lines when a short circuit occurs between the pair of lines. A normally closed contact, a current limiting resistor connected in parallel to the normally closed contact, and a voltage detection circuit that detects a predetermined voltage or less of the pair of lines and drives the relay. Line disconnection circuit for alarm system.
JP201686U 1986-01-13 1986-01-13 Pending JPS62117688U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP201686U JPS62117688U (en) 1986-01-13 1986-01-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP201686U JPS62117688U (en) 1986-01-13 1986-01-13

Publications (1)

Publication Number Publication Date
JPS62117688U true JPS62117688U (en) 1987-07-25

Family

ID=30780460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP201686U Pending JPS62117688U (en) 1986-01-13 1986-01-13

Country Status (1)

Country Link
JP (1) JPS62117688U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742415B2 (en) * 1980-05-20 1982-09-08
EP0101172A1 (en) * 1982-07-16 1984-02-22 Apollo Fire Detectors Limited Short circuit fault isolation means for electrical circuit arrangements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742415B2 (en) * 1980-05-20 1982-09-08
EP0101172A1 (en) * 1982-07-16 1984-02-22 Apollo Fire Detectors Limited Short circuit fault isolation means for electrical circuit arrangements

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