JPS52153698A - Device for detecting disconnection of fire alarm facility - Google Patents
Device for detecting disconnection of fire alarm facilityInfo
- Publication number
- JPS52153698A JPS52153698A JP7041176A JP7041176A JPS52153698A JP S52153698 A JPS52153698 A JP S52153698A JP 7041176 A JP7041176 A JP 7041176A JP 7041176 A JP7041176 A JP 7041176A JP S52153698 A JPS52153698 A JP S52153698A
- Authority
- JP
- Japan
- Prior art keywords
- fire alarm
- detecting disconnection
- alarm facility
- facility
- disconnection
- 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
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51070411A JPS5925275B2 (en) | 1976-06-17 | 1976-06-17 | Disconnection detection device in fire alarm equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51070411A JPS5925275B2 (en) | 1976-06-17 | 1976-06-17 | Disconnection detection device in fire alarm equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52153698A true JPS52153698A (en) | 1977-12-20 |
JPS5925275B2 JPS5925275B2 (en) | 1984-06-15 |
Family
ID=13430692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51070411A Expired JPS5925275B2 (en) | 1976-06-17 | 1976-06-17 | Disconnection detection device in fire alarm equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925275B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6174185U (en) * | 1984-10-16 | 1986-05-20 | ||
JPH04101193U (en) * | 1991-01-31 | 1992-09-01 | ニツタン株式会社 | Disaster prevention equipment repeater connection abnormality detection device |
-
1976
- 1976-06-17 JP JP51070411A patent/JPS5925275B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6174185U (en) * | 1984-10-16 | 1986-05-20 | ||
JPH0353349Y2 (en) * | 1984-10-16 | 1991-11-21 | ||
JPH04101193U (en) * | 1991-01-31 | 1992-09-01 | ニツタン株式会社 | Disaster prevention equipment repeater connection abnormality detection device |
Also Published As
Publication number | Publication date |
---|---|
JPS5925275B2 (en) | 1984-06-15 |
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