This 20-meter single-mode fiber patch cord is designed with an SC/APC to SC/UPC connector pair, ensuring compatibility with optical testing equipment such as the OX1. Its simplex configuration with one strand allows for efficient data transmission, making it an essential component for fiber optic splicing, testing, and locating applications. Specifically recommended for use with the Optical Explorer featuring an APC entry connector, this patch cord stands out as a reliable choice for professionals in the telecommunications field, where precision and quality are paramount. With specifications that align with industry standards for OS2 fibers, this patch cord is poised to meet a variety of testing demands effectively.