JPS56100543A - Failure returning method of loop transmission line - Google Patents

Failure returning method of loop transmission line

Info

Publication number
JPS56100543A
JPS56100543A JP215680A JP215680A JPS56100543A JP S56100543 A JPS56100543 A JP S56100543A JP 215680 A JP215680 A JP 215680A JP 215680 A JP215680 A JP 215680A JP S56100543 A JPS56100543 A JP S56100543A
Authority
JP
Japan
Prior art keywords
station
transmission line
transmission
returned
transmits
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
JP215680A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
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 JP215680A priority Critical patent/JPS56100543A/en
Publication of JPS56100543A publication Critical patent/JPS56100543A/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 make a private monitor station needless, by causing respective stations to switch transmission and receiving modes and by causing the transmission station to disconnect the abnormal transmission line to reconstitute the transmission line, when abnormality occurs in the transmission line. CONSTITUTION:Supervisor call station 14 transmits the left mode command frame to transmission station 15 through normal transmission cable 16 counterclockwise in the right mode (where the signal is received from auxiliary cable 17). At this time, response is not returned to station 14. Then, station 14 transmits the left mode command to station 10. At this time, response is not returned to station 14 also. Consequently, station 14 transmits the left mode command frame to station 11. Then, response is returned to station 14. After stations 15 and 10 are set to the reverse mode, station 14 is switched to the normal mode. As a result, the part where anomaly occurs is disconnected to reconstitute a closed loop.
JP215680A 1980-01-14 1980-01-14 Failure returning method of loop transmission line Pending JPS56100543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP215680A JPS56100543A (en) 1980-01-14 1980-01-14 Failure returning method of loop transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP215680A JPS56100543A (en) 1980-01-14 1980-01-14 Failure returning method of loop transmission line

Publications (1)

Publication Number Publication Date
JPS56100543A true JPS56100543A (en) 1981-08-12

Family

ID=11521481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP215680A Pending JPS56100543A (en) 1980-01-14 1980-01-14 Failure returning method of loop transmission line

Country Status (1)

Country Link
JP (1) JPS56100543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074843A (en) * 1983-09-30 1985-04-27 Toshiba Corp Data way loop-back control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074843A (en) * 1983-09-30 1985-04-27 Toshiba Corp Data way loop-back control system

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