The JBX42147 80-meter SC/APC to SC/UPC duplex single mode fiber patch cable is a mission-critical component designed for professional telecommunications and data center environments. This high-quality optical accessory combines precision engineering with compliance certifications to meet the most demanding network requirements. **Key Specifications:** The cable features a robust 9/125 singlemode core utilizing G.657.A1 glass fiber technology, which provides excellent bend resistance and performance characteristics. With insertion loss rated at ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, this cable ensures minimal signal degradation over its 80-meter length. Attenuation is rigorously tested in accordance with ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing reliable performance at both 1310 nm and 1550 nm wavelengths. **Construction & Safety:** The cable is constructed with a 1.8mm outside diameter and OFNR (Riser Rated) jacket, making it suitable for vertical runs and plenum spaces while maintaining fire safety compliance. The yellow jacket provides excellent visibility during installation and troubleshooting, reducing connection errors and installation time. **Connector Configuration:** The SC/APC to SC/UPC configuration with Type A to B crossover polarity represents the most common duplex patch cord arrangement, eliminating the need for adapter cables and simplifying network topology. SC connectors are industry-standard for single mode applications, offering reliable docking and excellent repeatability. **Compliance & Reliability:** Fully TAA (Trade Agreements Act) compliant and certified for RoHS/ELV compliance per EU Directive 2002/95/EC, this cable meets government procurement standards and environmental regulations. Backed by a 90-day limited warranty and available in custom lengths for specialized applications, the JBX42147 delivers enterprise-grade reliability. Ships from multiple U.S. locations with free standard shipping on orders exceeding $99.