JPS6461144A - Data highway equipment - Google Patents
Data highway equipmentInfo
- Publication number
- JPS6461144A JPS6461144A JP62218619A JP21861987A JPS6461144A JP S6461144 A JPS6461144 A JP S6461144A JP 62218619 A JP62218619 A JP 62218619A JP 21861987 A JP21861987 A JP 21861987A JP S6461144 A JPS6461144 A JP S6461144A
- Authority
- JP
- Japan
- Prior art keywords
- data
- section
- reception
- station
- frame synchronization
- 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
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000003780 insertion Methods 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 abstract 1
Landscapes
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To attain quick retrieval of a faulty station by providing a means to sent a loopback command signal to an optical slave station to a master station and providing a means sending a data to a signal line and sending the same data to a loopback line when the slave station receives a loopback command signal designated to its own slave station. CONSTITUTION:A data highway control section 8 is divided into a data reception section and a data transmission section. The data reception section decides the presence of frame synchronization to establish the frame synchronization or to eliminate it and checks the frame check sequency section FCS to detect the priority to fetch a reception data only when all checks are normal. On the other hand, the data transmission section applies processings such as generation of frame synchronization, generation of frame check sequency section FCS, insertion of data and insertion of control data to a control signal section LBCONT and sends the transmission data. The reception data synchronization detection section 10 is a circuit provided with a master station *1 only to detect the presence of frame synchronization of a reception signal from a loopback line l2, and is used to retrieve a faulty station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62218619A JPS6461144A (en) | 1987-08-31 | 1987-08-31 | Data highway equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62218619A JPS6461144A (en) | 1987-08-31 | 1987-08-31 | Data highway equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6461144A true JPS6461144A (en) | 1989-03-08 |
Family
ID=16722792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62218619A Pending JPS6461144A (en) | 1987-08-31 | 1987-08-31 | Data highway equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6461144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04891U (en) * | 1990-04-17 | 1992-01-07 |
-
1987
- 1987-08-31 JP JP62218619A patent/JPS6461144A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04891U (en) * | 1990-04-17 | 1992-01-07 |
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