JPS55147844A - Electric power source controlling system of optical communication system - Google Patents

Electric power source controlling system of optical communication system

Info

Publication number
JPS55147844A
JPS55147844A JP5649379A JP5649379A JPS55147844A JP S55147844 A JPS55147844 A JP S55147844A JP 5649379 A JP5649379 A JP 5649379A JP 5649379 A JP5649379 A JP 5649379A JP S55147844 A JPS55147844 A JP S55147844A
Authority
JP
Japan
Prior art keywords
power source
power
electric power
optical communication
needless
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
JP5649379A
Other languages
Japanese (ja)
Inventor
Masanori Honda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5649379A priority Critical patent/JPS55147844A/en
Publication of JPS55147844A publication Critical patent/JPS55147844A/en
Pending 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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/806—Arrangements for feeding power

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To make the composite cable using copper wires needless, by using frame information dependent upon the light signal, which is transmitted through the optical fiber cable, to control power-on and-off. CONSTITUTION:The light signal with the data field in the frame constitution, which is transmitted through the optical fiber cable, defined as a electric power source control bit is output through photo.electric conversion part 11 and serial. parallel conversion part 7. Remote unit 2 controlled by the center unit utilizes a proper bit on the data field to turn on contact SW2 of switch 15 through power switch control part 14, and the main power from power source 13 is supplied to respective conversion parts 11 and 7. Consequently, since information of light is used to supply power, the composite cable using copper wires and so on are needless.
JP5649379A 1979-05-09 1979-05-09 Electric power source controlling system of optical communication system Pending JPS55147844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5649379A JPS55147844A (en) 1979-05-09 1979-05-09 Electric power source controlling system of optical communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5649379A JPS55147844A (en) 1979-05-09 1979-05-09 Electric power source controlling system of optical communication system

Publications (1)

Publication Number Publication Date
JPS55147844A true JPS55147844A (en) 1980-11-18

Family

ID=13028611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5649379A Pending JPS55147844A (en) 1979-05-09 1979-05-09 Electric power source controlling system of optical communication system

Country Status (1)

Country Link
JP (1) JPS55147844A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053239A1 (en) * 1980-11-27 1982-06-09 ANT Nachrichtentechnik GmbH Service-integrated digital time-division multiplex transmission system
JPS5995740A (en) * 1982-10-22 1984-06-01 クロ−ネ　アクチエンゲゼルシヤフト Power consumption reducing device in subscriber communication path using bidirectional wavelength multiple communication
JPS59111433A (en) * 1982-12-17 1984-06-27 Hitachi Ltd Signal transmission system
US4531240A (en) * 1982-09-29 1985-07-23 Canon Kabushiki Kaisha Data communication system
US4545048A (en) * 1980-11-27 1985-10-01 Licentia Patent-Verwaltungs-Gmbh Service integrated digital transmission system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053239A1 (en) * 1980-11-27 1982-06-09 ANT Nachrichtentechnik GmbH Service-integrated digital time-division multiplex transmission system
US4545048A (en) * 1980-11-27 1985-10-01 Licentia Patent-Verwaltungs-Gmbh Service integrated digital transmission system
US4531240A (en) * 1982-09-29 1985-07-23 Canon Kabushiki Kaisha Data communication system
JPS5995740A (en) * 1982-10-22 1984-06-01 クロ−ネ　アクチエンゲゼルシヤフト Power consumption reducing device in subscriber communication path using bidirectional wavelength multiple communication
JPS59111433A (en) * 1982-12-17 1984-06-27 Hitachi Ltd Signal transmission system
JPH0418492B2 (en) * 1982-12-17 1992-03-27 Hitachi Ltd

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