JPS6489747A - Data transmitting circuit - Google Patents
Data transmitting circuitInfo
- Publication number
- JPS6489747A JPS6489747A JP62245993A JP24599387A JPS6489747A JP S6489747 A JPS6489747 A JP S6489747A JP 62245993 A JP62245993 A JP 62245993A JP 24599387 A JP24599387 A JP 24599387A JP S6489747 A JPS6489747 A JP S6489747A
- Authority
- JP
- Japan
- Prior art keywords
- data
- transmitted
- analog
- digital
- turned back
- 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
- Dc Digital Transmission (AREA)
- Communication Control (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
PURPOSE:To detect whether or not the data of a digital part are normally transmitted to an analog part by turning back-checking the transmitting data from the digital part to the analog part. CONSTITUTION:When data are inputted to a serial/parallel converter 6, one bit of the inputted data is presently turned back as checking data CDT through a second photocoupler 8. When all bits of the parallel data of the digital part are transmitted to the analog part, all bits of the parallel data transmitted to the analog part are turned back to a control circuit 9 of the digital part. By comparing the turned back data and the data stored by the control circuit 9, it can be detected that the data transmitted at this time are normally transmitted from the digital part to the analog part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245993A JPS6489747A (en) | 1987-09-30 | 1987-09-30 | Data transmitting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245993A JPS6489747A (en) | 1987-09-30 | 1987-09-30 | Data transmitting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489747A true JPS6489747A (en) | 1989-04-04 |
Family
ID=17141872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62245993A Pending JPS6489747A (en) | 1987-09-30 | 1987-09-30 | Data transmitting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489747A (en) |
-
1987
- 1987-09-30 JP JP62245993A patent/JPS6489747A/en active Pending
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