JPS5452944A - Circuit monitor system - Google Patents
Circuit monitor systemInfo
- Publication number
- JPS5452944A JPS5452944A JP11909177A JP11909177A JPS5452944A JP S5452944 A JPS5452944 A JP S5452944A JP 11909177 A JP11909177 A JP 11909177A JP 11909177 A JP11909177 A JP 11909177A JP S5452944 A JPS5452944 A JP S5452944A
- Authority
- JP
- Japan
- Prior art keywords
- adaptor
- data
- crc
- added
- exists
- 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
Abstract
PURPOSE: To secure an early detection for the fault of the communication circuit by transmiting the monitoring data added with the error detecting redundancy bit for the period during which no business data exists.
CONSTITUTION: The data delivered from computer 1-1 is added with cyclic redundancy code CRC within adaptor 2-1, and the original data and CRC are transmitted via MODEN 3-1. And the transmission data is received via MODEM3-2 and adaptor 2-2. In this case, CRC error detecting part 4-2 of adaptor 2-2 checks whether the error exists in the computer sent in.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11909177A JPS5452944A (en) | 1977-10-05 | 1977-10-05 | Circuit monitor system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11909177A JPS5452944A (en) | 1977-10-05 | 1977-10-05 | Circuit monitor system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5452944A true JPS5452944A (en) | 1979-04-25 |
Family
ID=14752662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11909177A Pending JPS5452944A (en) | 1977-10-05 | 1977-10-05 | Circuit monitor system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5452944A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6124093A (en) * | 1984-07-12 | 1986-02-01 | Toppan Printing Co Ltd | P-rom writer |
JPS6276340A (en) * | 1985-09-27 | 1987-04-08 | Nec Corp | Data processor fault notifying system |
JP2017073588A (en) * | 2015-10-05 | 2017-04-13 | Necプラットフォームズ株式会社 | Transmitter, transmission/reception system, transmission method and program |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010528A (en) * | 1973-05-24 | 1975-02-03 | ||
JPS51136254A (en) * | 1975-05-21 | 1976-11-25 | Hitachi Ltd | Fault detection |
JPS52108703A (en) * | 1976-03-08 | 1977-09-12 | Mitsubishi Electric Corp | Abnormality detecting system |
-
1977
- 1977-10-05 JP JP11909177A patent/JPS5452944A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010528A (en) * | 1973-05-24 | 1975-02-03 | ||
JPS51136254A (en) * | 1975-05-21 | 1976-11-25 | Hitachi Ltd | Fault detection |
JPS52108703A (en) * | 1976-03-08 | 1977-09-12 | Mitsubishi Electric Corp | Abnormality detecting system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6124093A (en) * | 1984-07-12 | 1986-02-01 | Toppan Printing Co Ltd | P-rom writer |
JPS6276340A (en) * | 1985-09-27 | 1987-04-08 | Nec Corp | Data processor fault notifying system |
JP2017073588A (en) * | 2015-10-05 | 2017-04-13 | Necプラットフォームズ株式会社 | Transmitter, transmission/reception system, transmission method and program |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5792948A (en) | Loop data transmission system | |
JPS5452944A (en) | Circuit monitor system | |
JPS5476034A (en) | Bus data transfer system | |
JPS561642A (en) | Transmission error generating device | |
JPS57146340A (en) | Data transfer system | |
JPS5477040A (en) | Data transmitter | |
JPS5552515A (en) | Pcm signal processor | |
JPS5419604A (en) | Data delivery unit | |
JPS5375707A (en) | Fault detection system | |
JPS5372412A (en) | Signal transmission system | |
JPS5568757A (en) | Terminal control unit | |
JPS5746549A (en) | Modulating and demodulating system of data signal for pcm highway | |
JPS5338941A (en) | Circuit control system | |
JPS54918A (en) | Facsimile transmission system | |
JPS5587254A (en) | Parity check system for two-way bus | |
JPS545416A (en) | Data check system by crc | |
JPS53111255A (en) | Check system for interface control signal | |
JPS54108504A (en) | Data transmission system on start-stop system | |
JPS5553940A (en) | Error detection system | |
JPS55124827A (en) | Failure discrimination system for data transmission system | |
JPS55150634A (en) | Transmission error detecting system of communication control unit | |
JPS51112240A (en) | Input output unit control system | |
JPS5423438A (en) | Terminal connection system | |
JPS5489510A (en) | Error control system for transmission control procedure | |
JPS52106607A (en) | Connecting system of teletypewriter |