The JBX43657 80-meter fiber patch cable represents a premium solution for single-mode optical network connectivity. Designed to bridge ST/APC connectors with LC/UPC endpoints, this simplex configuration delivers reliable, high-performance signal transmission across extended distances. **Technical Specifications & Performance:** Built with 9/125 singlemode fiber core and G.657.A1 glass composition, this cable delivers superior optical performance. Measured insertion loss of ≤0.35dB with typical performance of 0.15dB ensures minimal signal loss over the 80-meter span. Return loss exceeding 20dB provides excellent impedance matching, while attenuation rates of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm support both C-band and L-band optical communications. **Construction & Durability:** The cable features robust 1.8mm diameter jacketing with OFNR riser-rated fire safety compliance, making it suitable for vertical cable runs within building infrastructure. The yellow PVC jacket aids in quick visual identification during installation and maintenance procedures. ST/APC connectors provide excellent angular polish surface finish on the transmitting end, while LC/UPC connectors offer ultra-polish standard on the receiving end, ensuring optimal connector compatibility and reduced reflection loss. **Compliance & Standards:** Fully TAA compliant and RoHS/ELV certified, this cable meets all U.S. federal procurement requirements and European environmental directives. Performance tested according to ANSI/TIA/EIA-455-171-A standards guarantees reliable specifications across temperature and humidity ranges. **Applications & Use Cases:** Ideal for data center backbone connectivity, long-distance LAN extensions, telecommunications infrastructure, and high-speed network upgrades. The straight-through polarity configuration simplifies installation in complex networking environments. Custom length availability accommodates specialized deployment requirements. **Warranty & Support:** Included 90-day limited warranty provides peace of mind on your investment. Ships from multiple U.S. locations with free standard shipping on orders exceeding $99, ensuring rapid delivery to your facility. Whether upgrading legacy networks or deploying new infrastructure, the JBX43657 provides the reliability, performance, and compliance certification required for professional telecommunications environments.