JPS56149841A - Optical fiber transmission system - Google Patents

Optical fiber transmission system

Info

Publication number
JPS56149841A
JPS56149841A JP5387880A JP5387880A JPS56149841A JP S56149841 A JPS56149841 A JP S56149841A JP 5387880 A JP5387880 A JP 5387880A JP 5387880 A JP5387880 A JP 5387880A JP S56149841 A JPS56149841 A JP S56149841A
Authority
JP
Japan
Prior art keywords
optical fiber
light
switch
pulse
transmission system
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
JP5387880A
Other languages
Japanese (ja)
Other versions
JPS6041495B2 (en
Inventor
Yoshio Miyake
Toshio Takei
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 JP55053878A priority Critical patent/JPS6041495B2/en
Publication of JPS56149841A publication Critical patent/JPS56149841A/en
Publication of JPS6041495B2 publication Critical patent/JPS6041495B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/278—Bus-type networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To form a transmission system which is very strong against an electric noise as a whole, by leading an optical fiber into the transmission system. CONSTITUTION:A light pulse which has been sent out from the light transmitter T of the central equipment M reaches the switch SW1 through the optical fiber 5, the light branching circuit 2 and the optical fiber 6. When the switch SW1 is changed to ON from OFF and therefore reflection of the switch SW1 is varied from almost zero to almost 100%, the reflected rays which have been newly generated by ON of the switch SW1 reach the light receiver R through the optical fiber 6, the light branching circuit 2, the optical fiber 5 and the light branching circuit 1 once again. The light receiver R calculates the length of the optical fibers 5, 6 by the incoming time difference between the light pulse which has been sent out by the light transmitter and this receiving pulse, and decides that this reflected pulse is a signal from the switch SW1. In the same way, ON and OFF signals from each switch can be collected by confirming whether reflected pulses from the switches SW2, SW3 exist or not.
JP55053878A 1980-04-23 1980-04-23 Optical fiber transmission system Expired JPS6041495B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55053878A JPS6041495B2 (en) 1980-04-23 1980-04-23 Optical fiber transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55053878A JPS6041495B2 (en) 1980-04-23 1980-04-23 Optical fiber transmission system

Publications (2)

Publication Number Publication Date
JPS56149841A true JPS56149841A (en) 1981-11-19
JPS6041495B2 JPS6041495B2 (en) 1985-09-17

Family

ID=12954999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55053878A Expired JPS6041495B2 (en) 1980-04-23 1980-04-23 Optical fiber transmission system

Country Status (1)

Country Link
JP (1) JPS6041495B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6335344U (en) * 1986-08-22 1988-03-07
JPS6335345U (en) * 1986-08-22 1988-03-07
JPH01232844A (en) * 1988-03-14 1989-09-18 Yamatake Honeywell Co Ltd Optical communication unit and optical communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6335344U (en) * 1986-08-22 1988-03-07
JPS6335345U (en) * 1986-08-22 1988-03-07
JPH01232844A (en) * 1988-03-14 1989-09-18 Yamatake Honeywell Co Ltd Optical communication unit and optical communication system

Also Published As

Publication number Publication date
JPS6041495B2 (en) 1985-09-17

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