Home  >  News  >  FAQ

What is an OTDR dead zone?

Time: 2021-06-26 Views: 981

Dead zones originate from reflective events (fusion splices, fibre optic connectors, pressure points, etc) along the link and can affect the OTDR's ability to accurately measure attenuation on shorter links and differentiate closely spaced events. The OTDR will become temporarily blinded by the first event it picks up and will not see upcoming events close to each other and will instead pick them up as one event. Dead zones can extend hundreds of metres from the OTDR unit but can be reduced (but never eliminated) by adjusting the pulse width in accordance with the length of the fibre.

You Might Interested
31st Convergence India 2024 expo Angacom 2024 COLOGNE GERMANY IDC Product Exhibition Shanghai - 2021 What is a fibre enclosure? ECOC 2023 October 2-4, 2023 Stand:263 OFC Exhibition - 2025 ECOC 2013 London, 22-26 September 2013, ICC London ExCeL, UK What is OM4 fibre Cable? Analysis on the development and technical characteristics of optical fiber connectors CIOE 2025 - Shenzhen World Exhibition & Convention Center