JPS5616348A - Data transmitting system - Google Patents

Data transmitting system

Info

Publication number
JPS5616348A
JPS5616348A JP9217879A JP9217879A JPS5616348A JP S5616348 A JPS5616348 A JP S5616348A JP 9217879 A JP9217879 A JP 9217879A JP 9217879 A JP9217879 A JP 9217879A JP S5616348 A JPS5616348 A JP S5616348A
Authority
JP
Japan
Prior art keywords
transmitting
receiving circuits
combination
data transmission
transmission
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.)
Granted
Application number
JP9217879A
Other languages
Japanese (ja)
Other versions
JPS5915587B2 (en
Inventor
Yasuhisa Shiobara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54092178A priority Critical patent/JPS5915587B2/en
Publication of JPS5616348A publication Critical patent/JPS5616348A/en
Publication of JPS5915587B2 publication Critical patent/JPS5915587B2/en
Expired 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)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To secure the automatic detection and cut-off of the faulty point, by connecting plural numbers of data transmission stations in a loop shape by the main and spare transmission lines having the transmitting directions opposite to each other and then giving a selective control to the combination of the transmtting and receiving circuits. CONSTITUTION:Data transmission stations ST121-12n are connected in a loop shape by main transmission line L1 and spare transmission line L2 which have the transmission directions opposite to each other. The transmitting and receiving circuits are provided to data transmission/reception part 101 to be connected to lines L1 and L2 of each ST, and thus the combination of the transmitting and receiving circuits can be selected by the control of microprocessor 103. At the same time, reception timer 102 is provided to give a monitor to the received input state to start counting when the received output is interrupted. And this cout-up time CU is set to differ with every ST. System recovery function SVC is provided to at least two STs having a short CU time each, and thus a command is given from ST of the SVC to give a selection to the combination of the transmitting and receiving circuits of ST near the faulty point by use of line L2. In this way, an automatic reconstitution is secured for the system.
JP54092178A 1979-07-20 1979-07-20 data transmission system Expired JPS5915587B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54092178A JPS5915587B2 (en) 1979-07-20 1979-07-20 data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54092178A JPS5915587B2 (en) 1979-07-20 1979-07-20 data transmission system

Publications (2)

Publication Number Publication Date
JPS5616348A true JPS5616348A (en) 1981-02-17
JPS5915587B2 JPS5915587B2 (en) 1984-04-10

Family

ID=14047173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54092178A Expired JPS5915587B2 (en) 1979-07-20 1979-07-20 data transmission system

Country Status (1)

Country Link
JP (1) JPS5915587B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157661A (en) * 1981-03-25 1982-09-29 Hitachi Ltd Transmission line switching system
JPS588056U (en) * 1981-07-08 1983-01-19 株式会社ブリヂストン solar heat collector
JPS58170249A (en) * 1982-03-31 1983-10-06 Yokogawa Hokushin Electric Corp Redundant loop type data communication system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157661A (en) * 1981-03-25 1982-09-29 Hitachi Ltd Transmission line switching system
JPH0251306B2 (en) * 1981-03-25 1990-11-07 Hitachi Ltd
JPS588056U (en) * 1981-07-08 1983-01-19 株式会社ブリヂストン solar heat collector
JPS58170249A (en) * 1982-03-31 1983-10-06 Yokogawa Hokushin Electric Corp Redundant loop type data communication system

Also Published As

Publication number Publication date
JPS5915587B2 (en) 1984-04-10

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