The JBX42625 70-meter FC/APC to ST/UPC duplex singlemode fiber patch cable represents a premium solution for professional fiber optic network installations requiring reliable, long-distance signal transmission. This cable combines precision engineering with practical design features to meet the demanding requirements of modern telecommunications infrastructure. Technical Excellence: Built with 9/125 singlemode fiber cores utilizing G.657.A1 glass composition, this cable delivers superior performance characteristics. The insertion loss of ≤0.35dB (typical 0.15dB) at 1310nm and return loss exceeding 20dB ensures minimal signal degradation over extended distances. These specifications comply with ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing consistent performance across your network infrastructure. Connector Configuration: The FC/APC to ST/UPC connector combination with Type A to B crossover polarity is the industry standard for duplex patch cords. FC/APC connectors feature angled physical contacts and low back-reflection, ideal for bidirectional transmission, while ST/UPC connectors offer reliable keyed connections. Durability and Compliance: The yellow OFNR (Optical Fiber Non-conducting Riser) rated jacket provides flame resistance and low smoke emissions, meeting building codes for in-building installations. The 1.8mm outside diameter balances protection with flexibility. Full TAA compliance and RoHS/ELV certification make this cable suitable for government contracts and environmentally conscious enterprises. Applications: Perfect for data centers, telecommunications facilities, network backbone installations, and enterprise fiber infrastructure. The 70-meter length accommodates medium-to-long-distance runs while the custom length availability addresses specific project requirements. Warranty & Support: Backed by a 90-day limited warranty with free standard shipping on orders over $99. Ships from multiple US locations (Danville, CA; Fort Worth, TX; Beaufort, SC) ensuring rapid delivery.