The JBX42429 FC/APC to FC/UPC duplex singlemode fiber patch cable represents premium connectivity solutions for telecommunications professionals and network infrastructure specialists. This 7-meter cable combines industry-leading performance specifications with enterprise-grade reliability. **Technical Excellence:** Featuring 9/125 singlemode fiber core with G.657.A1 specification, this cable delivers superior optical performance. Attenuation specifications of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm ensure minimal signal loss across extended transmission distances. The cable's insertion loss of ≤0.35dB typical and return loss of ≥20dB exceed industry standards, making it suitable for demanding network applications. **Professional Construction:** The 1.8mm outside diameter with yellow OFNR-rated (Riser-rated) PVC jacket provides excellent protection while facilitating easy identification in high-density cable environments. Manufactured from durable plastic accessories with RoHS/ELV compliance, this cable meets stringent environmental and safety regulations required by government and enterprise procurement. **Connectivity Architecture:** The FC/APC to FC/UPC configuration with Type A to B crossover polarity represents the most common duplex patch cord standard. This asymmetric connector pairing accommodates diverse network topologies and equipment configurations, making it an essential component for heterogeneous network deployments. **Ideal Applications:** Perfect for telecommunications infrastructure, data centers, premise wiring, optical signal transmission, and network backbone connections. The TAA compliance status makes this cable suitable for federal and government projects with specific procurement requirements. **Additional Benefits:** - Free standard shipping on orders exceeding $99 - Ships from multiple US locations (California, Texas, South Carolina) - Available in custom lengths for specialized installations - 90-day limited warranty ensures customer satisfaction - ANSI/TIA/EIA-455-171-A standards-tested for quality assurance This professional-grade fiber patch cable represents the optimal choice for network administrators prioritizing reliability, performance, and compliance in mission-critical fiber optic installations.