The JBX43499 ST/APC to ST/UPC Simplex Singlemode Fiber Patch Cable represents professional-grade connectivity designed for mission-critical fiber optic applications. At 40 meters in length, this simplex cable delivers single-strand signal transmission with exceptional optical characteristics that exceed industry standards. Technical Excellence: Built with a 9/125 singlemode core and G.657.A1 grade glass fiber, this cable minimizes signal loss and maximizes transmission distances. The insertion loss specification of ≤0.35dB (with typical performance of 0.15dB) ensures minimal signal degradation, while return loss of ≥20dB prevents signal reflection issues. Attenuation testing confirms performance at both 1310nm and 1550nm wavelengths (0.25 dB/km and 0.35 dB/km respectively), meeting ANSI/TIA/EIA-455-171-A-2001 standards. Build Quality & Compliance: The yellow, OFNR (riser-rated) jacket provides robust protection suitable for in-wall installations while maintaining compliance with building fire codes. The 1.8mm outer diameter ensures compatibility with standard fiber management systems. TAA compliance and RoHS/ELV certification make this cable suitable for government and regulated industry deployments. Manufactured across multiple locations (Taiwan, US, and China) ensures reliable availability. Applications & Use Cases: Ideal for telecommunications networks, data center interconnects, campus backbones, and laboratory testing environments. The ST/APC to ST/UPC configuration accommodates mixed endpoint requirements common in transitional or hybrid network environments. Flexibility: While this listing specifies 40 meters, custom lengths are available to match exact deployment requirements, eliminating waste and optimizing installation efficiency. Value & Support: Offering free standard shipping on orders exceeding $99, competitive pricing, rapid fulfillment from three domestic distribution centers, and a 90-day limited warranty ensures customer satisfaction and peace of mind.