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
GITEX 2012, Dubai. October 14 - 18 Why is the inspection and cleaning of optical fibre connector end faces important? Analysis on the development and technical characteristics of optical fiber connectors Monitoring cases OFC Exhibition - 2025 CeBIT Bisilim Eurasia, Turkey. November 29 - December 2 8B21, CIOE 2021, Shenzhen. September 16 - 18 ECOC 2012, Amsterdam. September 17 - 19 IDC Product Exhibition Shanghai - 2021 CIOE, Shenzhen. September 6 - 9