The JBX42300 SC/APC to FC/UPC duplex singlemode fiber patch cable represents a premium solution for professional fiber optic network installations. This 0.5-meter cable is precision-engineered to deliver superior performance in high-speed data transmission applications, making it an excellent choice for telecommunications facilities, data centers, and enterprise network infrastructure. Key Technical Specifications: This duplex patch cable features a 9/125 singlemode core with G.657.A1 grade glass fiber, supporting both 1310nm and 1550nm wavelengths with attenuation of 0.25 dB/km and 0.35 dB/km respectively. The cable achieves exceptional performance metrics including typical insertion loss of 0.15dB (maximum 0.35dB) and return loss exceeding 20dB, tested in accordance with ANSI/TIA/EIA-455-171-A standards. Construction & Compliance: The bright yellow OFNR riser-rated jacket provides excellent visibility for cable management while meeting stringent building code requirements. At just 1.8mm in diameter, the compact design facilitates easy routing through conduit and cable trays. The cable is fully RoHS and TAA compliant, meeting EU directive 2002/95/EC standards and government purchasing requirements. Performance & Applications: Type A to B crossover polarity configuration makes this cable suitable for most duplex patch cord applications. Whether upgrading legacy systems, expanding network capacity, or building new installations, this cable provides reliable cross-connection between SC/APC and FC/UPC equipment. It's particularly valuable in telecommunications networks, ISP backhaul systems, and enterprise environments requiring maximum signal fidelity. Customization & Support: Available in custom lengths to meet specific installation requirements. Backed by a 90-day limited warranty, and shipped from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. The cable's durable construction and precise manufacturing ensure years of dependable performance in mission-critical applications.