JPS57173236A - Composite loop transmitter - Google Patents
Composite loop transmitterInfo
- Publication number
- JPS57173236A JPS57173236A JP56058111A JP5811181A JPS57173236A JP S57173236 A JPS57173236 A JP S57173236A JP 56058111 A JP56058111 A JP 56058111A JP 5811181 A JP5811181 A JP 5811181A JP S57173236 A JPS57173236 A JP S57173236A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber transmission
- optical
- loop
- transmission line
- 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
Links
- 239000002131 composite material Substances 0.000 title 1
- 230000005540 biological transmission Effects 0.000 abstract 7
- 239000013307 optical fiber Substances 0.000 abstract 6
- 230000003287 optical effect Effects 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To transmit information other than loop-transmitted information by applying wavelength multiplex technique by a transmitter wherein a central control part and respective terminal control parts via optical fiber transmission lines. CONSTITUTION:Terminal control parts 31 and 32 are connected mutually through an optical fiber transmission line 33 to constitute a part of a loop transmitter. An optical signal transmitted through the optical fiber transmission line 33 is converted by the photoelectric converter 35 into an electric signal, which is applied to a loop transmission processing circuit 36. The output of the processing circuit 36 is reconverted by an electrooptic converter 37 into an optical signal, which is sent to the terminal controlling part 32 through an optical fiber transmission line 34, an optical branching coupler 40, and the optical fiber transmission line 33. A signal from a protection relay 39, on the other hand, is converted by an electrooptic converter 38 into an optical signal having different wavelength from that of loop-transmitted information, and it is sent to the terminal controlling part through the optical branching coupler 40 and optical fiber transmission lines 34 and 33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56058111A JPS57173236A (en) | 1981-04-17 | 1981-04-17 | Composite loop transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56058111A JPS57173236A (en) | 1981-04-17 | 1981-04-17 | Composite loop transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57173236A true JPS57173236A (en) | 1982-10-25 |
Family
ID=13074858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56058111A Pending JPS57173236A (en) | 1981-04-17 | 1981-04-17 | Composite loop transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57173236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216633A (en) * | 1985-07-16 | 1987-01-24 | Toshiba Corp | Signal transfer device |
| JPS6277838A (en) * | 1985-09-30 | 1987-04-10 | 株式会社東芝 | Switching controller |
| JPS6328238A (en) * | 1986-07-16 | 1988-02-05 | 株式会社東芝 | Load group controller of motor or the like |
-
1981
- 1981-04-17 JP JP56058111A patent/JPS57173236A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216633A (en) * | 1985-07-16 | 1987-01-24 | Toshiba Corp | Signal transfer device |
| JPS6277838A (en) * | 1985-09-30 | 1987-04-10 | 株式会社東芝 | Switching controller |
| JPS6328238A (en) * | 1986-07-16 | 1988-02-05 | 株式会社東芝 | Load group controller of motor or the like |
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