JPS56169448A - Loop type network system - Google Patents

Loop type network system

Info

Publication number
JPS56169448A
JPS56169448A JP7151880A JP7151880A JPS56169448A JP S56169448 A JPS56169448 A JP S56169448A JP 7151880 A JP7151880 A JP 7151880A JP 7151880 A JP7151880 A JP 7151880A JP S56169448 A JPS56169448 A JP S56169448A
Authority
JP
Japan
Prior art keywords
data
communication
station
transmitted
detection
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
JP7151880A
Other languages
Japanese (ja)
Inventor
Tomoo Kokkyo
Haruo Masuko
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP7151880A priority Critical patent/JPS56169448A/en
Publication of JPS56169448A publication Critical patent/JPS56169448A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Abstract

PURPOSE:To make possible the efficient data communication, by collating and judging the received and transmitted communication data for data error detection, retransmitting the communication data and counting the number of the detection of failure in the network and performing the grasp of status accurately. CONSTITUTION:When the communicated address is designated by the station itself, a data switching device 3a is changed over to fetch the data to a data logical section 4, but in other cases, the data switching devices 3a, 3b are changed over for by- passing state. Further, the data for the station itself fetched in the data logic section 4 makes error detection of data based on the error check signal in a data processing section 5, and if no data error is present, this dara is transmitted on a data communication line DL again after attaching a reception flag. This data returns to the original communication data station to recognize the normal reception from the reception flag. In this case, at the original communication data station, the failure detection of the network is made by coincidence and collation between the returned data and the transmitted data.
JP7151880A 1980-05-30 1980-05-30 Loop type network system Pending JPS56169448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7151880A JPS56169448A (en) 1980-05-30 1980-05-30 Loop type network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7151880A JPS56169448A (en) 1980-05-30 1980-05-30 Loop type network system

Publications (1)

Publication Number Publication Date
JPS56169448A true JPS56169448A (en) 1981-12-26

Family

ID=13463010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7151880A Pending JPS56169448A (en) 1980-05-30 1980-05-30 Loop type network system

Country Status (1)

Country Link
JP (1) JPS56169448A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117942A (en) * 1984-11-13 1986-06-05 Meidensha Electric Mfg Co Ltd Test system for data transmission system
JPS6281191A (en) * 1985-10-04 1987-04-14 Nippon Telegr & Teleph Corp <Ntt> Program selecting method and user's set
JPS62101147A (en) * 1985-10-29 1987-05-11 Nec Corp Retransmission system in multiple address communication
JPS6328152A (en) * 1986-07-22 1988-02-05 Yamatake Honeywell Co Ltd Detction of abnormality of transmission line in loop transmission system
JP2015179883A (en) * 2014-03-18 2015-10-08 富士通株式会社 Data transmission system, transmission device, receiving device, transmission program, receiving program and data transmission method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123011A (en) * 1974-08-21 1976-02-24 Hitachi Ltd Taimu surotsutoshikiruupudensohoshiki
JPS5421139A (en) * 1977-07-18 1979-02-17 Nippon Signal Co Ltd:The Communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123011A (en) * 1974-08-21 1976-02-24 Hitachi Ltd Taimu surotsutoshikiruupudensohoshiki
JPS5421139A (en) * 1977-07-18 1979-02-17 Nippon Signal Co Ltd:The Communication system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117942A (en) * 1984-11-13 1986-06-05 Meidensha Electric Mfg Co Ltd Test system for data transmission system
JPS6281191A (en) * 1985-10-04 1987-04-14 Nippon Telegr & Teleph Corp <Ntt> Program selecting method and user's set
JPS62101147A (en) * 1985-10-29 1987-05-11 Nec Corp Retransmission system in multiple address communication
JPS6328152A (en) * 1986-07-22 1988-02-05 Yamatake Honeywell Co Ltd Detction of abnormality of transmission line in loop transmission system
JP2015179883A (en) * 2014-03-18 2015-10-08 富士通株式会社 Data transmission system, transmission device, receiving device, transmission program, receiving program and data transmission method

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