JPS6324555Y2 - - Google Patents
Info
- Publication number
- JPS6324555Y2 JPS6324555Y2 JP15179980U JP15179980U JPS6324555Y2 JP S6324555 Y2 JPS6324555 Y2 JP S6324555Y2 JP 15179980 U JP15179980 U JP 15179980U JP 15179980 U JP15179980 U JP 15179980U JP S6324555 Y2 JPS6324555 Y2 JP S6324555Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- demultiplexer
- natural frequency
- receiver
- 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
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000001228 spectrum Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 description 17
- 239000013307 optical fiber Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15179980U JPS6324555Y2 (enrdf_load_stackoverflow) | 1980-10-24 | 1980-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15179980U JPS6324555Y2 (enrdf_load_stackoverflow) | 1980-10-24 | 1980-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5773792U JPS5773792U (enrdf_load_stackoverflow) | 1982-05-07 |
| JPS6324555Y2 true JPS6324555Y2 (enrdf_load_stackoverflow) | 1988-07-05 |
Family
ID=29511118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15179980U Expired JPS6324555Y2 (enrdf_load_stackoverflow) | 1980-10-24 | 1980-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324555Y2 (enrdf_load_stackoverflow) |
-
1980
- 1980-10-24 JP JP15179980U patent/JPS6324555Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5773792U (enrdf_load_stackoverflow) | 1982-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6427329A (en) | Fault location supervisory system for optical fiber communication system | |
| JPS5523612A (en) | Detection system of faulty position of optical fiber transmission system | |
| JPS53130053A (en) | Circuit supervisory system of optical fiber cable | |
| JPS6324555Y2 (enrdf_load_stackoverflow) | ||
| CA2374855A1 (en) | Power spectrum monitoring and management in a wavelength division multiplexed network | |
| JPS57111607A (en) | Numerical control device | |
| JPS5687948A (en) | Optical communication system | |
| JPS575447A (en) | Failure detecting system | |
| JPS568933A (en) | Data transmission system with time-division multiplex and wavelength-division multiplex combined | |
| JPS6351320B2 (enrdf_load_stackoverflow) | ||
| JP6949175B2 (ja) | トンネル防災システム | |
| ATE34462T1 (de) | Systeme zur lichtuebertragung. | |
| JPS54149497A (en) | Automatic fire alamr system | |
| JPS56103552A (en) | Transmitting system of monitor signal | |
| JP2596371B2 (ja) | 監視機能を有する伝送装置 | |
| JPS57103445A (en) | Optical communication device | |
| EP1389839A4 (en) | METHOD AND SYSTEM FOR OPTICAL COMMUNICATION | |
| ATE244433T1 (de) | Infrarot-eindringdetektionssystem | |
| JPS59176937A (ja) | 光中継伝送路監視方式 | |
| SU711693A1 (ru) | Устройство дл моделировани работы системы адресного вызова | |
| JPS5451859A (en) | Fault point searching system of optical fiber transmission lines | |
| JPS59108485A (ja) | Tv信号送出レベル自動監視装置 | |
| JPS5617537A (en) | Information transmitting system using optical data bus line | |
| FR2377675A1 (fr) | Dispositif d'alarme | |
| JPS57113636A (en) | Remote monitor system |