The JBX42676 25-meter FC/APC to LC/UPC duplex singlemode fiber patch cable represents the gold standard in professional fiber optic connectivity solutions. Engineered for mission-critical applications, this cable combines precision engineering with compliance certifications required in regulated industries. **Technical Excellence** Built on 9/125 singlemode fiber with G.657.A1 specification, this cable delivers industry-leading performance metrics. With insertion loss of ≤0.35dB (typical 0.15dB at both 1310nm and 1550nm wavelengths) and return loss ≥20dB, signal integrity is maintained across long transmission distances. The cable has been rigorously tested in accordance with ANSI/TIA/EIA-455-171-A standards, ensuring reliability in demanding network environments. **Connector Configuration** The FC/APC to LC/UPC connector pairing in Type A to B crossover configuration is the most common duplex patch cord setup for seamless fiber network integration. APC (Angled Physical Contact) connectors on the FC end provide superior return loss, while UPC (Ultra Physical Contact) connectors on the LC end offer excellent compatibility with standard network equipment. **Durability and Protection** The cable features a riser-rated (OFNR) yellow PVC jacket that provides optimal protection while offering superior visibility in cable identification systems. At 1.8mm outside diameter, it fits standard conduit and cable trays without compromising flexibility. The bright yellow color meets industry standards for quick visual identification and reduces installation time. **Compliance and Standards** TAA (Trade Agreements Act) compliant and RoHS/ELV certified, this cable meets stringent regulatory requirements for government and enterprise procurement. It's manufactured in ISO-certified facilities across multiple locations (Taiwan, US, and China) with quality control at every stage. **Flexible Solution** While this cable ships at 25 meters, custom lengths are available to match specific network architecture requirements. The 90-day limited warranty provides confidence in product quality, and free standard shipping on orders over $99 makes it an economical choice for bulk installations. **Applications** Ideal for data centers, telecommunications facilities, enterprise networks, campus connectivity, and high-speed LAN installations where signal quality and reliability are paramount.