Category: Customer Cases
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OTDR Testing for FTTH and PON Networks: Why Standard Settings Fail and What to Do Instead
An OTDR set up the way you would for a point-to-point link gives misleading results on a PON. The splitter adds a loss step…
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Bidirectional OTDR Testing: When Standards Require It and How to Do It Right
Bidirectional OTDR testing means shooting the same fiber from both ends and averaging the two loss readings for every splice and connector. You do…
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OTDR Launch Cable: Why You Need One, How Long It Should Be, and Whether to Buy or Build
If you’ve run an OTDR test without a launch cable, you’ve probably noticed the trace starts with a blind region right where your first…
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How to Read an OTDR Trace: A Practical Guide with Real Examples
To read an OTDR trace, follow the line from left to right. The horizontal axis is distance along the fiber. The vertical axis is…
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How to Use an OTDR: A Field Guide That Skips the Theory
Most OTDR guides spend the first half telling you what an OTDR is. You already know — you’re standing at a splice enclosure with…
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OTDR Dead Zone Explained: Why You Miss Events Near Connectors (and How to Fix It)
An OTDR dead zone is the length of fiber, immediately after a strong reflection, where the OTDR cannot detect or accurately measure events. It…
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How Does an OTDR Work? The Science Behind the Trace
An OTDR works by launching short pulses of laser light into one end of a fiber, then measuring the tiny fraction of light that…
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What Is an OTDR?
An OTDR, or Optical Time Domain Reflectometer, is a handheld or benchtop instrument that tests the health of a fiber optic cable from a…
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TFN RS3: A Fiber Optic Hot Stripper for Field Cable Work
Long-haul fiber optic cable installation is rarely carried out in ideal conditions. Outside-plant crews may spend several hours or even several days working along…
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Which Handheld Spectrum Analyzer Can Quickly Locate RF Interference?
RF interference is rarely convenient. It may appear for a few seconds and disappear before an engineer can connect a test instrument. It may…