The JBX42977 5-meter LC/UPC to LC/UPC simplex singlemode fiber patch cable represents the ideal solution for professional-grade optical network installations. This premium cable combines precision engineering with robust construction to deliver consistent, high-fidelity signal transmission across demanding telecommunications and data center environments. **Superior Optical Performance** With a 9/125 singlemode core constructed from G.657.A1 glass fiber, this cable achieves exceptional optical characteristics. The insertion loss specification of ≤0.35dB (0.15dB typical) and return loss ≥20dB exceed industry standards, ensuring minimal signal degradation. Testing conducted in accordance with ANSI/TIA/EIA-455-171-A-2001 standards confirms reliable attenuation rates of 0.25 dB/km at 1310 nm or 0.35 dB/km at 1550 nm. **Rugged Construction & Compliance** The yellow outer jacket features OFNR (Optical Fiber Non-conductive Riser) rating, providing enhanced fire resistance and safety compliance for installation in vertical cable runs and plenum spaces. The 1.8mm outside diameter balances durability with installation flexibility. As a TAA-compliant product meeting EU directive 2002/95/EC (RoHS), this cable satisfies government procurement requirements and environmental standards. **Versatile Applications** Ideal for telecommunications infrastructure, data center connectivity, enterprise LAN installations, and carrier-grade network deployments. The LC/UPC straight-through configuration ensures seamless integration with existing network equipment and infrastructure. **Manufacturing & Availability** Manufactured with multi-source production (Taiwan, United States, China), ensuring supply chain reliability. Available in custom lengths to accommodate specific project requirements. Standard 5-meter configuration ships with free standard shipping on orders over $99. Backed by a comprehensive 90-day limited warranty. **Industry-Standard Specifications** Harmonization Code: 8544.70.0000 | Commodity Classification: Optical Accessory | Polarity: Straight Through | Packaging: 10x10x10 case configuration