The JBX42423 FC/APC to FC/UPC duplex singlemode fiber patch cable represents premium connectivity for professional optical network installations. This 2-meter cable combines superior optical performance with comprehensive compliance certifications, making it the ideal choice for enterprises, service providers, and data centers requiring reliable, standards-compliant fiber infrastructure. Optical Performance Excellence: Built with 9/125 singlemode fiber core, this cable is engineered for single-mode transmission over extended distances. The G.657.A1 grade glass fiber provides enhanced bend resistance without compromising optical characteristics. With typical insertion loss of just 0.15dB and minimum return loss of 20dB, this cable exceeds ANSI/TIA/EIA-455-171-A-2001 standards for attenuation performance at both 1310nm and 1550nm wavelengths. Connector Configuration: The FC/APC to FC/UPC duplex design provides Type A to B crossover polarity—the industry standard for duplex patch cord applications. APC (angled physical contact) connectors on one end connect seamlessly to UPC (ultra-polished) connectors on the other, enabling flexible network topology configurations without requiring separate adapters. Compliance & Reliability: Fully TAA compliant and RoHS certified under EU directive 2002/95/EC, this cable meets stringent government procurement requirements and environmental regulations. The OFNR-rated yellow jacket is suitable for building riser installations while the bright color enables quick identification in cable management scenarios. Physical Specifications: With a compact 1.8mm outside diameter and lightweight plastic construction, this cable fits seamlessly into high-density patch panels and cable trays. The 2-meter length provides optimal reach for most cabinet-to-cabinet and device-to-device connections without excess slack. Applications: Perfect for telecommunications networks, ISP infrastructure, enterprise data centers, fiber-to-the-home (FTTH) installations, and research facilities requiring singlemode connectivity. The duplex configuration supports bi-directional communication in single-strand applications. Warranty & Support: Backed by a 90-day limited warranty. Custom lengths available for specific installation requirements. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. Ensure optimal performance by following proper installation practices: avoid sharp bends, maintain connector cleanliness, and store in protective cases when not in use.