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
Analysis on the development and technical characteristics of optical fiber connectors CommunicAsia 2012, Singapore. June 19 - 22 What is the difference between multimode and singlemode fibre? Conflict Mineral Declaration CIOE, Shenzhen. September 5 - 8 ECOC 2013 London, 22-26 September 2013, ICC London ExCeL, UK Iran telecom 2014, 26 - 20 September 2014 CFCF (China Fiber Connect Forum) Suzhou - 2024 KOC 22th Anniversary Celebration CeBIT Bisilim Eurasia, Turkey. November 29 - December 2