The JBX42082 55-meter LC/APC to SC/UPC duplex singlemode fiber patch cable represents a sophisticated solution for telecommunications professionals requiring reliable, high-performance optical connectivity over extended distances. This cable is specifically engineered to meet the rigorous demands of modern data center, campus network, and carrier-grade installations. Technical Excellence: Built with 9/125 micron singlemode fiber core, this cable delivers exceptional performance characteristics. The G.657.A1 grade glass fiber provides superior bending characteristics compared to standard G.652 fiber, enabling easier routing through cable trays and conduits while maintaining optimal signal integrity. Attenuation is carefully controlled at 1310nm (0.25dB/km) and 1550nm (0.35dB/km) wavelengths, ensuring minimal signal loss across the full 55-meter span. The low insertion loss of ≤0.35dB (typical 0.15dB) and high return loss of ≥20dB exceed industry standards set by ANSI/TIA/EIA-455-171-A-2001. Construction and Safety: The OFNR (Optical Fiber Nonconductive Riser) rated yellow jacket provides flame-retardant protection suitable for vertical installations in building riser spaces. The 1.8mm compact outside diameter facilitates dense cable packing while the duplex configuration enables bidirectional communication on a single cord. RoHS and ELV directive compliance ensures environmental responsibility and regulatory adherence for government and enterprise customers. Applications and Benefits: Ideal for telecommunications networks, data center backbone connections, campus network installations, and long-distance signal transmission. The Type A to B crossover polarity configuration supports standard duplex networking protocols. Free standard shipping on orders over $99 reduces total cost of ownership. Warranty and Support: 90-day limited warranty provides confidence in product reliability. Available in custom lengths for specialized applications. Ships from multiple U.S. locations (Danville CA, Fort Worth TX, Beaufort SC) ensuring rapid delivery. This cable represents the optimal balance of performance, compliance, and value for telecommunications infrastructure professionals.