The JBX42011 9-meter LC/APC to LC/UPC duplex single mode fiber patch cable represents a professional-grade solution for demanding network infrastructure applications. This cable combines precision engineering with compliance certifications, making it an ideal choice for telecommunications companies, data center operators, and enterprise IT professionals. **Technical Excellence** This duplex patch cable features 9/125 single mode fiber with G.657.A1 glass construction, delivering superior performance in high-bandwidth applications. The LC/APC to LC/UPC configuration uses Type A to B crossover polarity—the industry standard for duplex applications. With measured insertion loss of ≤0.35dB (typical 0.15dB) and return loss exceeding 20dB, the cable maintains signal integrity across 1310nm and 1550nm wavelengths, achieving consistent 0.25dB/km attenuation at 1310nm and 0.35dB/km at 1550nm. **Durability and Compliance** Constructed with OFNR-rated riser jacketing and a compact 1.8mm outside diameter, this cable meets stringent safety and environmental standards. TAA compliance ensures procurement eligibility for government and institutional projects, while RoHS/ELV certification confirms lead-free, environmentally responsible manufacturing. The yellow jacket provides high visibility in complex cable installations. **Practical Advantages** Available in custom lengths beyond the standard 9m specification, this cable accommodates diverse installation scenarios. Manufactured in Taiwan, the United States, or China, with testing performed to ANSI/TIA/EIA-455-171-A standards, you receive consistent quality regardless of origin. Free standard shipping on orders over $99 and strategic warehouse locations in California, Texas, and South Carolina ensure rapid delivery. **Applications** Ideal for data center interconnects, telecommunications networks, fiber-to-the-home installations, and enterprise backbone connections. The duplex configuration supports bidirectional communication, making it essential for full-duplex network systems. **Warranty and Support** Backed by a 90-day limited warranty, this cable represents a reliable investment in network infrastructure. Professional installation is recommended for optimal performance in critical applications.