The JBX43619 40m FC/APC to ST/UPC Simplex Singlemode Fiber Patch Cable represents a premium solution for connecting fiber optic network equipment with precision and reliability. This cable bridges FC/APC and ST/UPC connector types, making it ideal for heterogeneous network environments where different connector standards must coexist. Technical Excellence: Built with a 9/125 singlemode core and G.657.A1 grade glass fiber, this cable delivers superior performance characteristics. Independent testing confirms insertion loss of just ≤0.35dB (typically 0.15dB), with return loss exceeding 20dB—well beyond industry minimums. Attenuation measurements of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm enable reliable long-distance signal transmission with minimal signal degradation. Robust Construction: The cable features a 1.8mm diameter with riser-rated OFNR jacketing, providing durability in both plenum and non-plenum installations. The bright yellow jacket aids in network identification while maintaining professional aesthetics. Straight-through polarity ensures standard signal flow without specialized configuration. Compliance & Standards: Full TAA compliance makes this cable suitable for government and enterprise procurement. RoHS/ELV certification ensures environmental responsibility. Testing performed to ANSI/TIA/EIA-455-171-A-2001 standards guarantees performance reliability. Customization & Support: Available in custom lengths to accommodate specific network layouts. The 90-day limited warranty provides peace of mind. Multi-location shipping from Danville CA, Fort Worth TX, and Beaufort SC ensures fast delivery. Ideal Applications: Telecommunications networks, data center interconnects, enterprise backbone installations, scientific research facilities, and any environment requiring singlemode fiber connectivity between dissimilar connector types. The simplex (single strand) configuration suits point-to-point applications.