JPS55117360A - Switch control system for signal transmission line - Google Patents

Switch control system for signal transmission line

Info

Publication number
JPS55117360A
JPS55117360A JP2443979A JP2443979A JPS55117360A JP S55117360 A JPS55117360 A JP S55117360A JP 2443979 A JP2443979 A JP 2443979A JP 2443979 A JP2443979 A JP 2443979A JP S55117360 A JPS55117360 A JP S55117360A
Authority
JP
Japan
Prior art keywords
transmission
transmission line
signal
signal transmission
control system
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
JP2443979A
Other languages
Japanese (ja)
Inventor
Mitsuo Kawaji
Toshio Usui
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2443979A priority Critical patent/JPS55117360A/en
Publication of JPS55117360A publication Critical patent/JPS55117360A/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)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To secure the high-reliability transmission by carrying out the signal transmission to the fault of one area on the transmission line via either one of the transmission lines distributed in the loop formation. CONSTITUTION:In case the signal transmission is carried out between CPU1 and input/output signal sources 9, 10 and 11 which are scattered over a wide range, the transmission is tried at central transmission control mechanism 2 with the transmission line switched toward 15 side if some fault occurs at one area on the transmission line, for example, on transmission line 13. In such case, the connection is secured for terminal transmission control mechanisms 4 and 5 via transmission lines 12 and 14, thus ensuring the normal transmission of the signal. As a result, the highly reliable transmission is possible for the signal.
JP2443979A 1979-03-05 1979-03-05 Switch control system for signal transmission line Pending JPS55117360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2443979A JPS55117360A (en) 1979-03-05 1979-03-05 Switch control system for signal transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2443979A JPS55117360A (en) 1979-03-05 1979-03-05 Switch control system for signal transmission line

Publications (1)

Publication Number Publication Date
JPS55117360A true JPS55117360A (en) 1980-09-09

Family

ID=12138170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2443979A Pending JPS55117360A (en) 1979-03-05 1979-03-05 Switch control system for signal transmission line

Country Status (1)

Country Link
JP (1) JPS55117360A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752937A (en) * 1980-09-12 1982-03-29 Toshiba Corp Data collecting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752937A (en) * 1980-09-12 1982-03-29 Toshiba Corp Data collecting system

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