The JBX89195 20-meter SC/ST duplex singlemode fiber patch cable represents the gold standard in optical connectivity solutions for demanding network environments. This cable is engineered with precision to deliver consistent, reliable performance across telecommunications, data center, and enterprise networking applications. **Technical Excellence** Constructed with 9/125 singlemode fiber and G.657.A1 glass composition, this cable provides optimal signal transmission at both 1310nm and 1550nm wavelengths. The attenuation specifications—0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm—ensure minimal signal degradation over the 20-meter span. With industry-leading insertion loss of ≤0.35dB and return loss ≥20dB, this cable delivers the performance characteristics required by ANSI/TIA/EIA-455-171-A-2001 standards. **Connector Compatibility** The SC/UPC to ST/UPC connector configuration provides exceptional flexibility for network integration. This duplex design enables simultaneous bidirectional communication, making it ideal for applications requiring full-duplex transmission. The Type A to B crossover polarity is the most common configuration for duplex patch cords, ensuring seamless compatibility with existing network infrastructure. **Compliance and Safety** TAA (Trade Agreements Act) compliance ensures this cable meets federal procurement standards, making it an excellent choice for government and enterprise installations. RoHS and ELV directive compliance demonstrates environmental responsibility, while riser-rated (OFNR) jacketing provides fire safety certification for commercial building applications. **Practical Features** The 1.8mm outside diameter allows flexible routing through cable trays, conduit systems, and tight installation spaces. The vibrant purple color coding simplifies network organization and maintenance. Available in custom lengths to suit specific installation requirements, this cable adapts to your network architecture. **Quality Assurance** Backed by a comprehensive 90-day limited warranty, this cable provides peace of mind for your network investment. Manufactured in Taiwan, the US, or China with consistent quality control, the JBX89195 is ready to ship from multiple US locations with free standard shipping on orders over $99. **Applications** Ideal for telecommunications facilities, data centers, backbone connections, high-performance LANs, and any application demanding premium singlemode fiber connectivity. Perfect for IT professionals, network engineers, and system integrators requiring reliable, standards-compliant optical solutions.