JPS6474849A - System for diagnosing line scanning mechanism and line connection unit - Google Patents
System for diagnosing line scanning mechanism and line connection unitInfo
- Publication number
- JPS6474849A JPS6474849A JP62231191A JP23119187A JPS6474849A JP S6474849 A JPS6474849 A JP S6474849A JP 62231191 A JP62231191 A JP 62231191A JP 23119187 A JP23119187 A JP 23119187A JP S6474849 A JPS6474849 A JP S6474849A
- Authority
- JP
- Japan
- Prior art keywords
- connection unit
- line
- line connection
- interface
- diagnosing
- 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
- Communication Control (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
PURPOSE:To surely diagnose the normality of an interface from a line connection unit to a line scanning mechanism, by providing an error generation instruction part at the line scanning mechanism and a compulsory error generation part at the line connection unit. CONSTITUTION:When the interface from the line connection unit 20LUT to the line connection unit 10CS is diagnosed, the control means 13 of the CS10 makes a transmission/reception means 11 send diagnosing information to the LUT20, and indication is issued from the error generation instruction part 12 to the compulsory error generation part 22 of the LUT20 via a signal line 35. The transmission/reception means 21 of the LUT20 returns the diagnosing information after attaching a parity to the CS10, and the compulsory error generation part 22 generates an error compulsorily on return information. The transmission/reception means 11 of the CS10 side diagnoses the return information, and the control means 13 diagnoses the normality of the interface from the LUT to the CS by receiving the result. By changing the bit position to generate the error of the content of the diagnosing information, it is possible to surely diagnose the normality of the interface, Diagnosis from the CS to the LUT is performed as usual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62231191A JPS6474849A (en) | 1987-09-17 | 1987-09-17 | System for diagnosing line scanning mechanism and line connection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62231191A JPS6474849A (en) | 1987-09-17 | 1987-09-17 | System for diagnosing line scanning mechanism and line connection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6474849A true JPS6474849A (en) | 1989-03-20 |
Family
ID=16919760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62231191A Pending JPS6474849A (en) | 1987-09-17 | 1987-09-17 | System for diagnosing line scanning mechanism and line connection unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6474849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007142536A (en) * | 2005-11-15 | 2007-06-07 | Traffic Shimu:Kk | Data modifying device, program, and recording medium |
-
1987
- 1987-09-17 JP JP62231191A patent/JPS6474849A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007142536A (en) * | 2005-11-15 | 2007-06-07 | Traffic Shimu:Kk | Data modifying device, program, and recording medium |
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