JPS5452944A - Circuit monitor system - Google Patents

Circuit monitor system

Info

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
Application number
JP11909177A
Other languages
Japanese (ja)
Inventor
Makoto Awata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11909177A priority Critical patent/JPS5452944A/en
Publication of JPS5452944A publication Critical patent/JPS5452944A/en
Pending legal-status Critical Current

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
JP11909177A 1977-10-05 1977-10-05 Circuit monitor system Pending JPS5452944A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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