The PSB/SPSB Launch Cable/Pulse Suppressor Box from EXFO America is an essential tool for fiber testing, designed to work seamlessly with Optical Time Domain Reflectometers (OTDRs). This innovative device effectively covers the OTDR's dead zone, enabling precise loss measurements on the initial and final connections of the fiber being tested. Whether you are working with singlemode or multimode fibers, the PSB/SPSB ensures accurate testing across a range of applications, making it indispensable for any fiber optics technician. With options for various connector types and models, including the stand-alone pulse suppressor box, this product offers flexibility and high-performance capabilities tailored to meet the rigorous demands of modern fiber testing scenarios.