The JBX43435 20m FC/APC to FC/UPC Simplex Singlemode Fiber Patch Cable represents professional-grade connectivity for demanding network environments. Engineered with precision manufacturing standards, this optical cable delivers superior performance and reliability for telecommunications, data centers, and enterprise network applications. **Technical Specifications:** This simplex fiber patch cable features a robust 9/125 singlemode core constructed from G.657.A1 glass fiber, specifically designed for long-distance, low-loss signal transmission. The cable achieves exceptional attenuation performance: 0.25 dB/km at 1310 nm wavelength and 0.35 dB/km at 1550 nm, making it ideal for both traditional and modern optical communication systems. The FC/APC-to-FC/UPC connector configuration provides hybrid compatibility, allowing seamless integration into mixed-connector network environments. With insertion loss measurements of ≤0.35dB (typical 0.15dB) and return loss ≥20dB, signal integrity remains exceptional even across the full 20-meter length. **Installation & Safety:** The 1.8mm diameter PVC-jacketed cable offers excellent flexibility for routing through cable trays and conduits while maintaining structural integrity. Riser-rated (OFNR) jacketing classification ensures compliance with National Electrical Code (NEC) requirements for plenum and in-building cable runs, providing fire safety and building code compliance. **Compliance & Certification:** Fully TAA-compliant for government procurement and federal contracts. RoHS/ELV certified under EU directive 2002/95/EC, eliminating hazardous substances while meeting environmental standards. Performance testing conducted in accordance with ANSI/TIA/EIA-455-171-A-2001 industry standards. **Flexible Deployment Options:** Ships from multiple U.S. locations (California, Texas, and South Carolina) for rapid delivery. Qualify for free standard shipping on orders exceeding $99. Custom lengths available for specialized installations. Backed by a comprehensive 90-day limited warranty, ensuring customer satisfaction and risk-free deployment. **Ideal Applications:** Perfect for campus network backbone connections, data center interconnects, telecommunications testing, and fiber-optic network upgrades requiring hybrid connector compatibility and professional-grade reliability.