How to Perform Advanced Fiber Troubleshooting using an OTDR

An Optical Time Domain Reflectometer (OTDR) is an important instrument used by organizations to certify the performance of new fiber links and detect problems with existing fiber links.

New technology has enabled a wide range of automatic capability in today's OTDRs. However, understanding OTDR traces and how to use manual settings is still beneficial for all testing. Often, technicians are limited by their inability to correctly interpret OTDR traces without the aid of the instrument's software. Understanding how an OTDR works, how the specifications affect its performance, and how to properly set it up can help users experience maximum performance.