JPS6484947A - Light repeating system - Google Patents
Light repeating systemInfo
- Publication number
- JPS6484947A JPS6484947A JP62242214A JP24221487A JPS6484947A JP S6484947 A JPS6484947 A JP S6484947A JP 62242214 A JP62242214 A JP 62242214A JP 24221487 A JP24221487 A JP 24221487A JP S6484947 A JPS6484947 A JP S6484947A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- light
- sent
- electric
- 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
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To distinguish an up line and a down line and to supervise a trouble by detecting the bit error and code rule infraction of a reflected signal. CONSTITUTION:A light signal from a light transmitting path 4 is converted to an electric signal by a light repeating circuit 5, thereafter, it is branched into two, one side is sent to the electric/optical converting part of the repeating circuit 5, and the other side is sent to a station signal selecting circuit 6. In the selecting circuit 6, when the signal is discriminated to be the reflected signal in a self station, a reflected instruction is sent to the repeating circuit 5, simultaneously, the signal is decoded, and it is restored to a protosignal. Further, the signal is encoded, sent to a light repeater 5', electric/optical-signal-converted here, and returned to the terminal station of a sending source through a light transmitting path 4' as a light signal string. In the terminal station, by detecting the bit error and code rule infraction of a receiving signal through the use of a measuring device, the error rate of the up line and down line can be detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242214A JPS6484947A (en) | 1987-09-25 | 1987-09-25 | Light repeating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242214A JPS6484947A (en) | 1987-09-25 | 1987-09-25 | Light repeating system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6484947A true JPS6484947A (en) | 1989-03-30 |
Family
ID=17085942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62242214A Pending JPS6484947A (en) | 1987-09-25 | 1987-09-25 | Light repeating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6484947A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504611A (en) * | 1993-06-14 | 1996-04-02 | International Business Machines Corporation | Apparatus for repowering and monitoring serial links |
-
1987
- 1987-09-25 JP JP62242214A patent/JPS6484947A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504611A (en) * | 1993-06-14 | 1996-04-02 | International Business Machines Corporation | Apparatus for repowering and monitoring serial links |
US5642217A (en) * | 1993-06-14 | 1997-06-24 | International Business Machines Corporation | Apparatus for repowering and monitoring serial links |
US5673132A (en) * | 1993-06-14 | 1997-09-30 | International Business Machines Corporation | Apparatus for repowering and monitoring serial links |
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