The JBX42601 FC/APC to ST/UPC duplex singlemode fiber patch cable represents a professional-grade solution for demanding telecommunications, data center, and enterprise network environments. Manufactured to exacting standards and available from multiple US distribution centers, this 1-meter cable delivers the performance and reliability required in mission-critical applications. Key Technical Specifications: This duplex fiber cable features dual 9/125 singlemode fiber strands with G.657.A1 glass composition, optimized for minimal attenuation at both 1310nm (0.25dB/km) and 1550nm (0.35dB/km) wavelengths. The FC/APC connector provides superior return loss performance (≥20dB), critical for high-speed data transmission and analog signal applications. Insertion loss testing confirms performance at ≤0.35dB typical, ensuring minimal signal degradation over the 1-meter span. Construction and Compliance: The cable features a 1.8mm outer diameter with OFNR (Optical Fiber Non-conductive Riser) rated jacketing, suitable for in-wall vertical installations and plenum spaces. The distinctive yellow identification jacket facilitates rapid cable identification in complex infrastructure environments. Full TAA compliance enables procurement by federal, state, and local government agencies. RoHS/ELV certification confirms environmental responsibility and compliance with EU Directive 2002/95/EC. Applications and Use Cases: Perfect for telecommunications networks, data center interconnects, campus area networks (CANs), and test and measurement equipment connections. The Type A to B crossover configuration (duplex standard) makes this cable immediately deployable in most network environments without specialized adapters. Customization and Support: Custom lengths are available to meet specific installation requirements beyond the standard 1-meter configuration. Every cable includes a 90-day limited warranty. Standard shipping is free on orders exceeding $99, with rapid fulfillment from distribution centers in California, Texas, and South Carolina. Industry Standards Compliance: All attenuation measurements conform to ANSI/TIA/EIA-455-171-A-2001 standards, ensuring compatibility with network equipment specifications and industry best practices.