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
Why is the inspection and cleaning of optical fibre connector end faces important? What styles of fibre cable are commonly used? Conflict Mineral Declaration 31st Convergence India 2024 expo ECOC 2023 October 2-4, 2023 Stand:263 CommunicAsia 2019, Singapore. June 19 - 22 What fibre optic cable should be used for underground installation? What is a fibre enclosure? Iran telecom 2014, 26 - 20 September 2014 OFC Exhibition - 2025