what does otdr stand for in fiber optics
New: Download a free OTDR Simulator for PCs. After you study this page, you can download a free OTDR simulator to run on your PC. The Optical Time Domain Reflectometer (OTDR) is useful for testing the integrity of fiber optic cables. It can verify splice loss, measure length and find faults. The OTDR is also commonly used to create a picture of fiber optic cable when it is newly installed.