JPS57143946A - Optical fiber communication device - Google Patents

Optical fiber communication device

Info

Publication number
JPS57143946A
JPS57143946A JP2966681A JP2966681A JPS57143946A JP S57143946 A JPS57143946 A JP S57143946A JP 2966681 A JP2966681 A JP 2966681A JP 2966681 A JP2966681 A JP 2966681A JP S57143946 A JPS57143946 A JP S57143946A
Authority
JP
Japan
Prior art keywords
fault
breaking
optical fiber
optical
detector
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
JP2966681A
Other languages
Japanese (ja)
Other versions
JPS622492B2 (en
Inventor
Kiwamu Matsushita
Kazuyoshi Oshima
Katsuyoshi Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2966681A priority Critical patent/JPS57143946A/en
Publication of JPS57143946A publication Critical patent/JPS57143946A/en
Publication of JPS622492B2 publication Critical patent/JPS622492B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To speed search for a fault point and restoration by detecting a disconnection fault on an annular optical transmission line by a disconnection position detector and by automatically displaying an optical fiber which has the fault. CONSTITUTION:If one of optical fiber cables 1a-1g is broken during communication among optical information transmitters 6a-6e, a breaking detector 5 detects a breaking fault by the absence of signals from the optical information transmitters and sends a breaking fault detection signal to a breaking position detector 8. On receiving it, the detector 8 displays the contents of the reception state and sends a switching signal to an optical switch 3, which is closed. Thus, the state of the mutual communication among the transmitters 6a-6e disabled owing to the breaking fault of said fiber is restored to the normal state.
JP2966681A 1981-02-27 1981-02-27 Optical fiber communication device Granted JPS57143946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2966681A JPS57143946A (en) 1981-02-27 1981-02-27 Optical fiber communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2966681A JPS57143946A (en) 1981-02-27 1981-02-27 Optical fiber communication device

Publications (2)

Publication Number Publication Date
JPS57143946A true JPS57143946A (en) 1982-09-06
JPS622492B2 JPS622492B2 (en) 1987-01-20

Family

ID=12282432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2966681A Granted JPS57143946A (en) 1981-02-27 1981-02-27 Optical fiber communication device

Country Status (1)

Country Link
JP (1) JPS57143946A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062749A (en) * 1983-08-08 1985-04-10 Fujitsu Ltd Ras system in u-shaped optical bus network
JPS6330042A (en) * 1986-07-23 1988-02-08 Meidensha Electric Mfg Co Ltd Information transmitter
US6307652B1 (en) 1998-04-28 2001-10-23 Weed Instrument Company, Incorporated Fault tolerant optical communication apparatus and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6447493U (en) * 1987-09-17 1989-03-23
JPS6447492U (en) * 1987-09-17 1989-03-23

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062749A (en) * 1983-08-08 1985-04-10 Fujitsu Ltd Ras system in u-shaped optical bus network
JPH035699B2 (en) * 1983-08-08 1991-01-28 Fujitsu Ltd
JPS6330042A (en) * 1986-07-23 1988-02-08 Meidensha Electric Mfg Co Ltd Information transmitter
US6307652B1 (en) 1998-04-28 2001-10-23 Weed Instrument Company, Incorporated Fault tolerant optical communication apparatus and method

Also Published As

Publication number Publication date
JPS622492B2 (en) 1987-01-20

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