The JBX85203 fiber patch cable represents a premium solution for professional network infrastructure requiring extended distances and superior signal integrity. Measuring 45 meters in length, this duplex singlemode cable is specifically designed to bridge network components across larger facilities while maintaining optimal signal quality. **Technical Excellence**: This cable features a 9/125 singlemode core with G.657.A1 glass fiber, delivering consistent attenuation of 0.25 dB/km at 1310 nm or 0.35 dB/km at 1550 nm. Tested to ANSI/TIA/EIA-455-171-A-2001 standards, it achieves insertion loss of ≤0.35dB with typical performance at 0.15dB, ensuring minimal signal degradation across your network. **Connector Configuration**: The SC/UPC to ST/UPC connector pairing with Type A to B crossover polarity enables straightforward duplex communication pathways. Both SC and ST connectors feature UPC (Ultra Physical Contact) finish for enhanced return loss performance of ≥20dB. **Professional-Grade Construction**: The 1.8mm outside diameter with OFNR (Optical Fiber, Nonconductive, Riser Rated) yellow jacket provides durability, flame resistance, and easy identification in crowded cable trays. The yellow coloring aids technicians in quick cable identification during installation and maintenance. **Compliance & Reliability**: TAA compliant and certified to EU directive 2002/95/EC (RoHS), this cable meets government contracting requirements and environmental standards. Backed by a 90-day limited warranty and available from multiple U.S. distribution centers, it ensures rapid deployment. **Ideal Applications**: Perfect for data center backbone connections, telecommunications infrastructure, campus networks, and long-distance LAN extensions where singlemode performance is required. Custom lengths are available for specific project requirements. **Value Proposition**: Ships with free standard shipping on orders exceeding $99, delivering enterprise-grade fiber connectivity at competitive pricing. Whether upgrading existing infrastructure or deploying new networks, this certified patch cable provides the performance and compliance required by modern telecommunications standards.