JPS57173236A - Composite loop transmitter - Google Patents

Composite loop transmitter

Info

Publication number
JPS57173236A
JPS57173236A JP56058111A JP5811181A JPS57173236A JP S57173236 A JPS57173236 A JP S57173236A JP 56058111 A JP56058111 A JP 56058111A JP 5811181 A JP5811181 A JP 5811181A JP S57173236 A JPS57173236 A JP S57173236A
Authority
JP
Japan
Prior art keywords
optical fiber
fiber transmission
optical
loop
transmission line
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
JP56058111A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishida
Tsutomu Shinohara
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP56058111A priority Critical patent/JPS57173236A/en
Publication of JPS57173236A publication Critical patent/JPS57173236A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

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

Abstract

PURPOSE:To transmit information other than loop-transmitted information by applying wavelength multiplex technique by a transmitter wherein a central control part and respective terminal control parts via optical fiber transmission lines. CONSTITUTION:Terminal control parts 31 and 32 are connected mutually through an optical fiber transmission line 33 to constitute a part of a loop transmitter. An optical signal transmitted through the optical fiber transmission line 33 is converted by the photoelectric converter 35 into an electric signal, which is applied to a loop transmission processing circuit 36. The output of the processing circuit 36 is reconverted by an electrooptic converter 37 into an optical signal, which is sent to the terminal controlling part 32 through an optical fiber transmission line 34, an optical branching coupler 40, and the optical fiber transmission line 33. A signal from a protection relay 39, on the other hand, is converted by an electrooptic converter 38 into an optical signal having different wavelength from that of loop-transmitted information, and it is sent to the terminal controlling part through the optical branching coupler 40 and optical fiber transmission lines 34 and 33.
JP56058111A 1981-04-17 1981-04-17 Composite loop transmitter Pending JPS57173236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058111A JPS57173236A (en) 1981-04-17 1981-04-17 Composite loop transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058111A JPS57173236A (en) 1981-04-17 1981-04-17 Composite loop transmitter

Publications (1)

Publication Number Publication Date
JPS57173236A true JPS57173236A (en) 1982-10-25

Family

ID=13074858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058111A Pending JPS57173236A (en) 1981-04-17 1981-04-17 Composite loop transmitter

Country Status (1)

Country Link
JP (1) JPS57173236A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216633A (en) * 1985-07-16 1987-01-24 Toshiba Corp Signal transfer device
JPS6277838A (en) * 1985-09-30 1987-04-10 株式会社東芝 Switching controller
JPS6328238A (en) * 1986-07-16 1988-02-05 株式会社東芝 Load group controller of motor or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216633A (en) * 1985-07-16 1987-01-24 Toshiba Corp Signal transfer device
JPS6277838A (en) * 1985-09-30 1987-04-10 株式会社東芝 Switching controller
JPS6328238A (en) * 1986-07-16 1988-02-05 株式会社東芝 Load group controller of motor or the like

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