JPS55134559A - Abnormal-part orientation system for common transmission line - Google Patents

Abnormal-part orientation system for common transmission line

Info

Publication number
JPS55134559A
JPS55134559A JP4184379A JP4184379A JPS55134559A JP S55134559 A JPS55134559 A JP S55134559A JP 4184379 A JP4184379 A JP 4184379A JP 4184379 A JP4184379 A JP 4184379A JP S55134559 A JPS55134559 A JP S55134559A
Authority
JP
Japan
Prior art keywords
line
abnormal
lines
switch
common 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
JP4184379A
Other languages
Japanese (ja)
Other versions
JPS6013626B2 (en
Inventor
Fumihiko Takezoe
Hiroshi Nishinaga
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP54041843A priority Critical patent/JPS6013626B2/en
Priority to DE19803012438 priority patent/DE3012438A1/en
Publication of JPS55134559A publication Critical patent/JPS55134559A/en
Publication of JPS6013626B2 publication Critical patent/JPS6013626B2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • H04B1/745—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods

Landscapes

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

Abstract

PURPOSE:To discriminate an abnormal part by orienting a fixed mode when detecting abnormality occurring, by providing a receiver/driver, terminating unit and switching method to every station connected to a common transmission line by branching. CONSTITUTION:To common transmission lines, stations are connected by branching and if abnormality would happen to lines, the abnormality of the lines is recognized from the variation of data, etc., so that every station will orient the abnormal lines. In orientation mode I, terminating resistance 5a is connected to line 7b via switch 4b by putting switch 4a into operation, and terminating resistance 5b is further connected to the line of the 7a side to transmit diagnostic data from receiver/driver 6, thereby exercising a supervision over the line of the 7b side. In orientation mode II, switch 4a is placed at the original position and switch 4b is put into operation to connect terminating resistance 5b to the 7a-side line and resistance 5a to the 7b-side line; and the diagnostic data are transmitted from driver 6 to supervise the line 7a side, thereby discriminating the abnormal part.
JP54041843A 1979-04-06 1979-04-06 Abnormal part location method for common transmission line Expired JPS6013626B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54041843A JPS6013626B2 (en) 1979-04-06 1979-04-06 Abnormal part location method for common transmission line
DE19803012438 DE3012438A1 (en) 1979-04-06 1980-03-31 Complete loop data transmission network - each terminal having fault localisation and restoration switching to adopt end mode if intermediate line fails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54041843A JPS6013626B2 (en) 1979-04-06 1979-04-06 Abnormal part location method for common transmission line

Publications (2)

Publication Number Publication Date
JPS55134559A true JPS55134559A (en) 1980-10-20
JPS6013626B2 JPS6013626B2 (en) 1985-04-08

Family

ID=12619529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54041843A Expired JPS6013626B2 (en) 1979-04-06 1979-04-06 Abnormal part location method for common transmission line

Country Status (1)

Country Link
JP (1) JPS6013626B2 (en)

Also Published As

Publication number Publication date
JPS6013626B2 (en) 1985-04-08

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