The JBX42085 represents a premium solution for organizations requiring dependable fiber optic connectivity over extended distances. This 70-meter LC/APC to SC/UPC duplex singlemode fiber patch cable is engineered to meet the demanding requirements of modern data center, telecommunications, and enterprise network environments. **Technical Excellence** Featuring a 9/125 micron singlemode core with G.657.A1 glass fiber composition, this cable achieves superior attenuation performance: 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm. The LC/APC to SC/UPC configuration with Type A to B crossover polarity represents the industry standard for duplex interconnects, ensuring seamless integration with existing infrastructure. Insertion loss testing confirms performance at ≤0.35dB (typical 0.15dB), while return loss exceeds 20dB—critical specifications for maintaining signal fidelity across extended spans. **Compliance and Durability** TAA compliant certification makes this cable ideal for federal government projects and procurement-restricted environments. Full RoHS/ELV compliance ensures environmental responsibility and adherence to global standards (EU directive 2002/95/EC). The 1.8mm outer diameter jacketing is OFNR (Riser Rated), providing fire safety for in-building vertical cable runs while maintaining flexibility for installation in constrained spaces. **Practical Features** The distinctive yellow jacket provides instant visual identification in busy server rooms and network closets, reducing installation errors and simplifying maintenance procedures. Duplex configuration enables simultaneous bidirectional communication, essential for full-duplex network protocols. Custom length options accommodate unique deployment scenarios beyond the standard 70-meter offering. **Ideal Applications** Perfect for campus networks, data center interconnects, telecommunications infrastructure, carrier networks, and enterprise-wide fiber deployments. The 90-day limited warranty provides purchase confidence. Ships from strategically located US warehouses (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on qualifying orders.