The JBX87195 20m SC/ST Duplex Singlemode Fiber Patch Cable represents enterprise-class connectivity solutions for demanding network environments. This professional-grade optical cable delivers exceptional performance characteristics that exceed industry standards, making it the preferred choice for data centers, telecommunications facilities, and critical network infrastructure. Technical Excellence: Constructed with a 9/125 micron singlemode core and G.657.A1 ultra-low-bend-radius glass fiber, this cable achieves exceptional signal integrity with attenuation rates of just 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm. The measured insertion loss of ≤0.35dB (0.15dB typical) and return loss of ≥20dB ensure minimal signal degradation over 20 meters, critical for maintaining data integrity in high-speed networks. Connector Configuration: The SC/UPC to ST/UPC connector pairing with Type A to B crossover polarity represents the most common and interoperable duplex configuration, enabling seamless integration with existing network infrastructure. Both connector types feature ultra-polished ceramic ferrules for precise alignment and minimal back-reflection. Compliance & Durability: Fully TAA compliant and RoHS/ELV certified, this cable meets government procurement requirements and environmental regulations. The riser-rated (OFNR) 1.8mm jacketing provides enhanced flame resistance for in-building installations while maintaining flexibility for routing through cable trays and conduit. Flexibility & Support: Custom lengths are available for specific installation requirements beyond the standard 20m configuration. The 90-day limited warranty and multi-location shipping from Danville CA, Fort Worth TX, and Beaufort SC ensure rapid delivery and support. Free standard shipping applies to qualifying orders over $99. Applications: Ideal for LAN/WAN connections, DWDM systems, telecommunications backhaul, and data center interconnections where single-mode performance and duplex communication are essential.