The JBX42078 35-meter LC/APC to SC/UPC duplex singlemode fiber patch cable represents professional-grade optical connectivity designed for demanding telecommunications, data center, and enterprise network applications. This comprehensive solution combines superior optical performance with practical deployment features. **Optical Performance & Specifications:** Built with a 9/125 singlemode core and G.657.A1 glass fiber, this cable delivers exceptional signal quality across standard and extended wavelengths. Tested attenuation specifications show 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm, with typical insertion loss of just 0.15dB and maximum ≤0.35dB. Return loss exceeding 20dB ensures minimal signal reflection, critical for DWDM, long-distance transmission, and sensitive optical applications. **Connector Configuration:** The duplex design features LC/APC termination on one end and SC/UPC on the other, enabling seamless integration between different equipment types. Type A to B crossover polarity—the most common duplex configuration—ensures correct fiber pairing and optimal performance. The 1.8mm jacket diameter provides flexibility while maintaining durability. **Safety & Compliance:** Fully TAA (Trade Agreements Act) compliant for US government and procurement use. RoHS and ELV certified per EU Directive 2002/95/EC, meeting stringent environmental standards. OFNR riser rating provides fire-safe performance in building installations without conduit, critical for building codes and safety regulations. **Practical Advantages:** - 35-meter length eliminates multiple splices, reducing loss and improving reliability - Yellow jacket enhances visibility in crowded patch panels - Tested per ANSI/TIA/EIA-455-171-A-2001 standards - Ships from three US locations (California, Texas, South Carolina) for fast delivery - Free standard shipping on orders exceeding $99 - Custom lengths available for specialized installations - 90-day limited warranty **Applications:** Ideal for data center interconnects, telecom backbone networks, carrier-grade installations, long-distance signal transmission, and any application requiring low-loss singlemode connectivity with mixed connector types. **Care & Handling:** Protect connectors from dust and contamination. Store in dry conditions. Avoid bending beyond minimum bend radius. Professional installation recommended for optimal performance.