Time-Domain Reflectometry

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What Does Time-Domain Reflectometry Mean?

Time-domain reflectometry (TDR) identifies and measures errors related to aerial and underground cable and fiber optic wiring through the analysis of pulse reflection polarity.

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The TDR technique accurately detects errors and bugs in amplitude, frequencies and other electrical signatures.

TDR variations include Spread-Spectrum Time-Domain Reflectometry (SSTDR) and Coherent Optical Time Domain Reflectometry (COTDR).

Techopedia Explains Time-Domain Reflectometry

TDR is a key diagnostic technique for high-speed digital circuit systems.

TDR begins with system energy pulse signals transmitted to conductors. Subsequent reflected energy is then observed. Transmission variance detection is enabled by studying reflection shape, magnitude and duration.

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    Margaret Rouse
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    Margaret Rouse
    Technology expert

    Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret’s idea of ​​a fun day is to help IT and business professionals to learn to speak each other’s highly specialized languages.

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