JPS5440003A - Loop-type data transmission system - Google Patents

Loop-type data transmission system

Info

Publication number
JPS5440003A
JPS5440003A JP10626677A JP10626677A JPS5440003A JP S5440003 A JPS5440003 A JP S5440003A JP 10626677 A JP10626677 A JP 10626677A JP 10626677 A JP10626677 A JP 10626677A JP S5440003 A JPS5440003 A JP S5440003A
Authority
JP
Japan
Prior art keywords
loop
data transmission
transmission system
type data
master unit
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
JP10626677A
Other languages
Japanese (ja)
Inventor
Fusao Ishiguchi
Shoichi Yamada
Sadao Kurihara
Harumi Sakata
Makoto Matsumoto
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 JP10626677A priority Critical patent/JPS5440003A/en
Publication of JPS5440003A publication Critical patent/JPS5440003A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To secure the data exchange between the master unit and the slave unit by switching the slave unit connected to the abnormal system to the normal master unit in case some fault takes place in the master unit.
JP10626677A 1977-09-06 1977-09-06 Loop-type data transmission system Pending JPS5440003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10626677A JPS5440003A (en) 1977-09-06 1977-09-06 Loop-type data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10626677A JPS5440003A (en) 1977-09-06 1977-09-06 Loop-type data transmission system

Publications (1)

Publication Number Publication Date
JPS5440003A true JPS5440003A (en) 1979-03-28

Family

ID=14429275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10626677A Pending JPS5440003A (en) 1977-09-06 1977-09-06 Loop-type data transmission system

Country Status (1)

Country Link
JP (1) JPS5440003A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704714A (en) * 1983-12-05 1987-11-03 Hitachi, Ltd. Method of detecting recovery from fault in a data transmission system which effects loopback control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704714A (en) * 1983-12-05 1987-11-03 Hitachi, Ltd. Method of detecting recovery from fault in a data transmission system which effects loopback control

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