The JBX43149 SC/APC to SC/UPC Simplex Singlemode Fiber Patch Cable represents a professional-grade solution for telecommunications and data center applications requiring reliable, long-distance fiber optic connectivity. With a generous 90-meter length, this cable accommodates extensive network layouts while maintaining superior signal quality. **Technical Excellence:** Constructed with 9/125 singlemode fiber core and G.657.A1 glass fiber technology, this cable is specifically designed for single-direction signal transmission in demanding environments. The cable achieves exceptional performance metrics: insertion loss of ≤0.35dB (0.15dB typical), return loss ≥20dB, and wavelength-specific attenuation of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm. These specifications ensure minimal signal degradation over extended runs, critical for high-speed data transmission. **Installation and Safety:** The bright yellow 1.8mm diameter jacket provides excellent visibility during installation and maintenance, reducing the risk of accidental damage. OFNR (Optical Fiber Non-Conductive Riser) rating certifies compliance with fire safety codes for vertical installations in multi-story buildings. TAA compliance and RoHS/ELV certification make this cable suitable for government and enterprise procurement requirements. **Connector Configuration:** The SC/APC to SC/UPC configuration accommodates mixed network environments where different connector types require bridging. The APC (Angled Physical Contact) end provides superior return loss characteristics, while the UPC (Ultra Physical Contact) end offers broad compatibility. Straight-through polarity ensures straightforward installation without specialized adapters. **Flexibility and Support:** Custom length availability allows optimization for specific network layouts, reducing excess cable management. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) ensuring rapid delivery. The 90-day limited warranty provides peace of mind for critical network investments. **Ideal Applications:** Perfect for telecommunications, data centers, ISP backbone networks, and enterprise LAN installations requiring singlemode performance over extended distances.