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Understanding & Using the OTDR

Light Brigade Part No.: F1-9783CDR

  • $ 153.08 or

Does the following terminology and theory confuse you when operating OTDR

  • Index of Refraction (I.R.)
  • Averaging
  • 2 Point & auto (LSA) loss measurements
  • Fresnel and Rayleigh backscatter

If so, Understanding and Using the OTDR would be beneficial to you and your organization. The OTDR is one of the most widely used yet least understood instruments in fiber optics. Understanding and Using the OTDR will take you through a step-by-step explanation that demonstrates how the OTDR works and its role in fiber optic measurements. Learn how to use the OTDR for acceptance testing, splice monitoring and emergency restoration applications.


  • Characteristics of an OTDR
  • Signatures:
    • Reflective events
    • Non-reflective events
    • Splice gains
    • Roll-offs
  • Using the OTDR:
    • Terminating the fiber
    • OTDR settings
    • Wavelength
    • Index of refraction (I.R.)
    • Pulse width
    • Modes of operation
    • Use of cursor
    • Finding distance to a fiber break
    • Ghosts
    • Acceptance testing
    • Splice monitoring
    • Restoration


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