The JBX89165 20-meter SC/SC Duplex Singlemode Fiber Patch Cable represents professional-grade connectivity engineered for enterprise networks, telecommunications infrastructure, and high-performance data center environments. This TAA-compliant optical solution combines precision engineering with cost-effectiveness, making it ideal for organizations requiring reliable fiber optic communications. **Technical Excellence:** Features industry-standard 9/125 singlemode fiber core construction with G.657.A1 glass fiber specification. The cable delivers exceptional performance metrics: insertion loss of ≤0.35dB (typically 0.15dB), return loss ≥20dB, and attenuation ratings of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm. These specifications ensure minimal signal degradation over the 20-meter span, critical for long-distance optical signal transmission. **Build Quality & Durability:** The 1.8mm diameter cable features OFNR riser-rated jacketing, providing fire safety compliance for installation in building plenums and vertical cable runs. SC/UPC connectors use Type A to B crossover polarity, the most common duplex configuration. The purple outer jacket facilitates quick cable identification and organization in complex network installations. **Compliance & Standards:** Fully TAA-compliant with RoHS/ELV certification per EU directive 2002/95/EC. Attenuation performance tested to ANSI/TIA/EIA-455-171-A-2001 standards, ensuring reliability and interoperability across telecommunications networks. **Flexible Customization:** While this listing specifies 20 meters, custom length options are available to accommodate specific installation requirements from standard to extended distances. **Logistics & Support:** Ships promptly from multiple U.S. facilities (Danville CA, Fort Worth TX, Beaufort SC). Qualified orders over $99 receive free standard shipping. Backed by a 90-day limited warranty providing peace of mind for your fiber infrastructure investment. Ideal for telecommunications engineers, IT professionals, and network integrators seeking premium singlemode fiber patch cables with proven performance and compliance certifications.