The JBX92195 Singlemode Fiber Patch Cable represents the gold standard in optical connectivity solutions for telecommunications, data centers, and enterprise networks. This 20-meter duplex cable combines precision engineering with stringent compliance standards to deliver reliable, high-performance signal transmission. **Key Technical Specifications:** Featuring 9/125 singlemode fiber with G.657.A1 glass composition, this cable achieves exceptional optical performance. Insertion loss remains at or below 0.35dB (typical 0.15dB), while return loss exceeds 20dB, ensuring minimal signal loss over extended distances. Attenuation testing confirms performance at both 1310nm (0.25 dB/km) and 1550nm (0.35 dB/km) wavelengths, supporting diverse telecommunications applications. **Connectivity & Configuration:** The SC/UPC to ST/UPC connector configuration with Type A to B crossover polarity addresses the most common duplex patch cord requirements. Both connector types feature UPC (Ultra Physical Contact) ferrules, delivering superior return loss and reliable coupling performance. **Build Quality & Compliance:** Constructed with OFNR (Optical Fiber Non-conductive Riser) rated jacketing, this cable meets fire safety standards for in-building applications. The compact 1.8mm outside diameter facilitates easy routing through existing infrastructure. TAA compliance ensures suitability for government and educational institution procurement requirements, while RoHS/ELV compliance aligns with international environmental standards. **Practical Applications:** Ideal for connecting telecommunications equipment, network switches, and optical transceivers where singlemode transmission is required. The 20-meter length suits medium-distance backbone connections and inter-rack communications within data centers. **Flexibility & Support:** Custom lengths are available for specialized installations, and competitive pricing includes free standard shipping on orders exceeding $99. The 90-day limited warranty provides peace of mind for critical deployments.