The JBX86189 7m SC/ST Duplex Singlemode Fiber Patch Cable represents a premium connectivity solution for telecommunications, data centers, and enterprise networks requiring reliable optical signal transmission. This professional-grade cable combines precision engineering with stringent compliance certifications to deliver consistent performance in mission-critical applications. **Technical Specifications:** Built with 9/125 singlemode fiber core and G.657.A1 glass composition, this duplex cable provides superior light transmission characteristics. The SC/UPC to ST/UPC connector configuration with Type A to B crossover polarity is industry-standard for duplex patch cord applications. At 7 meters in length with a compact 1.8mm outside diameter, the cable balances reach with flexibility for installations in tight spaces. **Performance & Reliability:** Insertion loss measurements of ≤0.35dB (typical 0.15dB) and return loss ≥20dB ensure minimal signal degradation over the cable run. Attenuation specifications of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm meet rigorous telecommunications standards. All performance characteristics are verified in accordance with ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing measurement accuracy and reliability. **Compliance & Certifications:** TAA compliance makes this cable suitable for government and federal procurement projects. RoHS/ELV certification (EU Directive 2002/95/EC) ensures environmental responsibility and safety in electronic disposal. The riser-rated (OFNR) jacket provides fire protection appropriate for commercial building installations. **Installation & Support:** The cable ships from multiple US locations (California, Texas, and South Carolina) with free standard shipping on orders over $99. Custom length options are available for specialized applications. Every cable includes a 90-day limited warranty covering manufacturing defects. **Applications:** Ideal for connecting network switches, routers, optical transceivers, and fiber distribution panels in data centers, telecommunications facilities, laboratory environments, and enterprise networks where singlemode performance and compact design are essential.