Last Updated: August 16, 2025
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What is a OTDR ?
Optical Time Domain Reflectometer – also known as an OTDR, is a hardware device used for measurement of the elapsed time and intensity of light reflected on optical fiber.
How it works?
The reflectometer can compute the distance to problems on the fiber such as attenuation and breaks, making it a useful tool in optical network troubleshooting.
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