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
Sviaz Expo Comm, Moscow. May 14 - 17 CIOE 2025 - Shenzhen World Exhibition & Convention Center KOC invites you to Angacom 2018, Cologne, Germany Analysis on the development and technical characteristics of optical fiber connectors ECOC 2023 October 2-4, 2023 Stand:263 CeBIT Bisilim Eurasia, Turkey. November 29 - December 2 Monitoring cases ECOC 2014 France, 22 - 24 September 2014 Why KOC can promise Fast delivery? 31st Convergence India 2024 expo