The JBX42133 SC/APC to SC/UPC duplex fiber patch cable represents a reliable solution for professional network infrastructure applications. This 12-meter cable delivers superior performance specifications that exceed industry standards, making it suitable for demanding telecommunications and data center environments. Technical Excellence: Constructed with 9/125 single mode fiber core and G.657.A1 glass fiber composition, this cable provides exceptional optical performance. The SC/APC to SC/UPC connectors utilize a Type A to B crossover polarity configuration—the most common setup for duplex patch cord applications. Insertion loss is maintained at ≤0.35dB (typical 0.15dB), while return loss exceeds 20dB, ensuring minimal signal reflection and optimal data transmission quality. The cable performs consistently across both 1310nm and 1550nm wavelengths, meeting attenuation specifications of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm. Construction & Compliance: Feature a durable 1.8mm outside diameter with yellow OFNR (riser-rated) jacketing for safe installation in building plenum spaces. This cable is fully TAA (Trade Agreements Act) compliant and manufactured according to ANSI/TIA/EIA-455-171-A-2001 standards. RoHS and ELV directive compliance ensures environmental responsibility and regulatory adherence. Applications & Use Cases: Ideal for telecommunications networks, enterprise data centers, server room interconnections, and high-speed network upgrades. The duplex configuration enables bidirectional communication, reducing cable clutter while maintaining signal integrity. Customization & Availability: While this 12-meter version is standard, custom lengths are available to meet specific installation requirements. Free standard shipping on orders over $99, with convenient fulfillment from multiple U.S. locations (Danville CA, Fort Worth TX, or Beaufort SC). Warranty & Support: Backed by a 90-day limited warranty, providing confidence in your network investment.