JPS5599854A - Ring shape photo communication unit - Google Patents

Ring shape photo communication unit

Info

Publication number
JPS5599854A
JPS5599854A JP638279A JP638279A JPS5599854A JP S5599854 A JPS5599854 A JP S5599854A JP 638279 A JP638279 A JP 638279A JP 638279 A JP638279 A JP 638279A JP S5599854 A JPS5599854 A JP S5599854A
Authority
JP
Japan
Prior art keywords
ring shape
terminals
units
transmission
lines
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
JP638279A
Other languages
Japanese (ja)
Other versions
JPS5950142B2 (en
Inventor
Tsutomu Asabe
Kenzo Ono
Hirokazu Yoshino
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54006382A priority Critical patent/JPS5950142B2/en
Publication of JPS5599854A publication Critical patent/JPS5599854A/en
Publication of JPS5950142B2 publication Critical patent/JPS5950142B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To keep the ring shape communication network and to increase the reliability, by connecting the photo coupler of 3 or 4 terminals to the terminal control unit in ring shape connection and selecting the forward, reverse and folding transmission at each terminal unit. CONSTITUTION:The ring shape photo communicaton unit is constituted by connecting the terminal units 20-23 in ring shape with the lines 10-12 formed with optical fibers, and data transmission is made to a given direction normally, data transmission and reception is made among the units 20-23 to deliver the message of line monitor. To the terminal control unit 7 of the units 20-23, the light-electric converter 5 and electric-light conversion unit 6 are connected, and the photo switches 3 and 4 are respectively connected to the units 5 and 6. Further, the directional couplers 1, 2 of 3 or 4 terminals are connected to the switches 3, 4, and when the failure of lines is detected due to missing of the monitoring message, the folding transmission is made to the terminals 20 and 23 at the both ends of failed line and bidirectional transmission of light is made to other terminals 21 and 22 to constitute the new ring shape communication network of single line and bidirectional transmission and to hold the lines.
JP54006382A 1979-01-22 1979-01-22 Ring optical communication device Expired JPS5950142B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54006382A JPS5950142B2 (en) 1979-01-22 1979-01-22 Ring optical communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54006382A JPS5950142B2 (en) 1979-01-22 1979-01-22 Ring optical communication device

Publications (2)

Publication Number Publication Date
JPS5599854A true JPS5599854A (en) 1980-07-30
JPS5950142B2 JPS5950142B2 (en) 1984-12-06

Family

ID=11636826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54006382A Expired JPS5950142B2 (en) 1979-01-22 1979-01-22 Ring optical communication device

Country Status (1)

Country Link
JP (1) JPS5950142B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333178A (en) * 1979-12-04 1982-06-01 International Standard Electric Corporation Optical fiber repeater
JPS60122677A (en) * 1983-12-01 1985-07-01 フジテック株式会社 Signal device for elevator
FR2626382A1 (en) * 1988-01-27 1989-07-28 Spectec Sa A two-fibre optical-fibre network having two transmission directions
JPH01288289A (en) * 1988-05-16 1989-11-20 Universal Kk Control device for game machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333178A (en) * 1979-12-04 1982-06-01 International Standard Electric Corporation Optical fiber repeater
JPS60122677A (en) * 1983-12-01 1985-07-01 フジテック株式会社 Signal device for elevator
FR2626382A1 (en) * 1988-01-27 1989-07-28 Spectec Sa A two-fibre optical-fibre network having two transmission directions
JPH01288289A (en) * 1988-05-16 1989-11-20 Universal Kk Control device for game machine
JPH0642914B2 (en) * 1988-05-16 1994-06-08 ユニバーサル販売株式会社 Gaming machine controller

Also Published As

Publication number Publication date
JPS5950142B2 (en) 1984-12-06

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