JPS56157157A - Faulty part orientating system for common transmission line - Google Patents

Faulty part orientating system for common transmission line

Info

Publication number
JPS56157157A
JPS56157157A JP6114580A JP6114580A JPS56157157A JP S56157157 A JPS56157157 A JP S56157157A JP 6114580 A JP6114580 A JP 6114580A JP 6114580 A JP6114580 A JP 6114580A JP S56157157 A JPS56157157 A JP S56157157A
Authority
JP
Japan
Prior art keywords
transmission line
common transmission
state
faulty
driver
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
JP6114580A
Other languages
Japanese (ja)
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
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom Corp
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, Fuji Facom Corp filed Critical Fuji Electric Co Ltd
Priority to JP6114580A priority Critical patent/JPS56157157A/en
Publication of JPS56157157A publication Critical patent/JPS56157157A/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

Abstract

PURPOSE:To transmit a diagnosis data to perform an orientation for a faulty part and then eliminate the faulty transmission line part automatically in case a fault occurs to a common transmission line in a system in which a data is transmitted between the optical stations via the common transmission line. CONSTITUTION:A receiver R and a driver D are provided independently to each station connected to a common transmission line, and these receivers and drivers are connected in a loop to each other via the common transmission lines 7a and 7b. All stations always monitor the state of data transmission for the common transmission line and then actuate a switch 4a in the first orientation mode if a fault is detected on the transmission line. Then a termination resistance 5a plus a driver D are connected to the 7b side, and a termination resistance 5b plus a receiver R are connected to the 7a side. The diagnosis data transmitted from the driver D is received by the receiver R, and the state of the 7a side is monitored to set the storage part 8a in case a fault is detected. Then the switch 4a is reset to monitor the state of the line at the 7b side in the same way of monitor. After this, the common transmission line is reconstituted according to the state of the storage parts 8a and 8b. Thus the faulty section of the transmission line is eliminated.
JP6114580A 1980-05-08 1980-05-08 Faulty part orientating system for common transmission line Pending JPS56157157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6114580A JPS56157157A (en) 1980-05-08 1980-05-08 Faulty part orientating system for common transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6114580A JPS56157157A (en) 1980-05-08 1980-05-08 Faulty part orientating system for common transmission line

Publications (1)

Publication Number Publication Date
JPS56157157A true JPS56157157A (en) 1981-12-04

Family

ID=13162635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6114580A Pending JPS56157157A (en) 1980-05-08 1980-05-08 Faulty part orientating system for common transmission line

Country Status (1)

Country Link
JP (1) JPS56157157A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134560A (en) * 1979-04-06 1980-10-20 Fuji Electric Co Ltd Automatic reconstitution system for common transmission line
JPS55134558A (en) * 1979-04-06 1980-10-20 Fuji Electric Co Ltd Constitution system for common transmission line

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134560A (en) * 1979-04-06 1980-10-20 Fuji Electric Co Ltd Automatic reconstitution system for common transmission line
JPS55134558A (en) * 1979-04-06 1980-10-20 Fuji Electric Co Ltd Constitution system for common transmission line

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