JPH021672Y2 - - Google Patents
Info
- Publication number
- JPH021672Y2 JPH021672Y2 JP1262985U JP1262985U JPH021672Y2 JP H021672 Y2 JPH021672 Y2 JP H021672Y2 JP 1262985 U JP1262985 U JP 1262985U JP 1262985 U JP1262985 U JP 1262985U JP H021672 Y2 JPH021672 Y2 JP H021672Y2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- transmitter
- receiver
- repeater
- signal
- 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
Links
- 238000012790 confirmation Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262985U JPH021672Y2 (US07709020-20100504-C00041.png) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262985U JPH021672Y2 (US07709020-20100504-C00041.png) | 1985-01-31 | 1985-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61128788U JPS61128788U (US07709020-20100504-C00041.png) | 1986-08-12 |
| JPH021672Y2 true JPH021672Y2 (US07709020-20100504-C00041.png) | 1990-01-16 |
Family
ID=30495874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1262985U Expired JPH021672Y2 (US07709020-20100504-C00041.png) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021672Y2 (US07709020-20100504-C00041.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7081997B2 (ja) * | 2018-06-29 | 2022-06-07 | 能美防災株式会社 | 伝送距離延長システム及び火災報知設備 |
-
1985
- 1985-01-31 JP JP1262985U patent/JPH021672Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61128788U (US07709020-20100504-C00041.png) | 1986-08-12 |
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