JPS562522A - Orientation system for optical cable break point - Google Patents

Orientation system for optical cable break point

Info

Publication number
JPS562522A
JPS562522A JP7879079A JP7879079A JPS562522A JP S562522 A JPS562522 A JP S562522A JP 7879079 A JP7879079 A JP 7879079A JP 7879079 A JP7879079 A JP 7879079A JP S562522 A JPS562522 A JP S562522A
Authority
JP
Japan
Prior art keywords
break
point
repeater
supervisory signals
fiber
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
JP7879079A
Other languages
Japanese (ja)
Inventor
Makoto Yamashita
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7879079A priority Critical patent/JPS562522A/en
Publication of JPS562522A publication Critical patent/JPS562522A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To make it possible to detect a fiber break point in real time by leading supervisory signals, generated by two break-point orientation units, to a light repeater, by making a supervision over the break of supervisory signals, and by transmitting and receiving obtained information by those orientation units. CONSTITUTION:Light repeater 8 operates through remote or local electric power feed, but even if an fiber is broken causing the break of electric power feed, terminal stations A and B can detect the interruption of supervisory signals since the signals propagate earlier than the functions of light repeater 8 are disabled due to the break of power feed, so that orientation to a break point can come into effect. Thus, supervisory signals generated by break-point orientation units 4 and 5 are led to main repeater 9 and subordinate repeater 10 and pieces of information Ta and Tb on a supervision over those supervisory signals are transferred between break-point orientation units 4 and 5 via separately provided control circuits, so that the break point of the fiber can be detected in real time.
JP7879079A 1979-06-22 1979-06-22 Orientation system for optical cable break point Pending JPS562522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7879079A JPS562522A (en) 1979-06-22 1979-06-22 Orientation system for optical cable break point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7879079A JPS562522A (en) 1979-06-22 1979-06-22 Orientation system for optical cable break point

Publications (1)

Publication Number Publication Date
JPS562522A true JPS562522A (en) 1981-01-12

Family

ID=13671669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7879079A Pending JPS562522A (en) 1979-06-22 1979-06-22 Orientation system for optical cable break point

Country Status (1)

Country Link
JP (1) JPS562522A (en)

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