The JBX42014 LC/APC to LC/UPC Duplex Single Mode Fiber Patch Cable represents enterprise-grade connectivity designed for critical network environments. This 15-meter cable combines precision engineering with practical durability to meet the demands of modern telecommunications infrastructure. **Technical Excellence** Features a 9/125 micron single mode fiber core with G.657.A1 glass composition, providing superior optical characteristics. The cable achieves exceptional insertion loss performance of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, ensuring minimal signal degradation across your network. Attenuation specifications are measured at 1310nm (0.25dB/km) and 1550nm (0.35dB/km), tested rigorously in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. **Practical Design** The 1.8mm outside diameter with protective plastic jacket creates a flexible yet robust cable suitable for both temporary and permanent installations. The distinctive yellow color provides excellent visibility in cable bundles and network closets, simplifying identification and maintenance. OFNR riser-rated jacketing ensures compliance with building codes and fire safety requirements. **Compliance & Certification** TAA compliant with full RoHS/ELV certification (EU directive 2002/95/EC), this patch cable meets governmental procurement requirements and environmental standards. Multiple U.S. manufacturing locations ensure quality control and rapid availability. **Applications** Ideal for telecommunications networks, data centers, server rooms, and fiber optic system expansions. The Type A to B crossover configuration works seamlessly with standard duplex patch panel layouts. Perfect for upgrades, troubleshooting, and new installations requiring reliable, high-performance fiber connectivity. **Value & Support** Includes 90-day limited warranty and free standard shipping on orders over $99. Available in custom lengths to match your specific cable run requirements. Manufactured in Taiwan, US, or China with consistent quality across all sources.