The JBX42131 SC/APC to SC/UPC Duplex Fiber Patch Cable represents professional-grade connectivity for modern network infrastructure. With a 9-meter length and single mode 9/125 fiber core, this cable is engineered to meet the demanding requirements of telecommunications facilities, data centers, and enterprise networks. **Technical Specifications:** This duplex patch cable utilizes G.657.A1 glass fiber technology, providing superior performance characteristics. The cable achieves insertion loss ratings of ≤0.35dB at standard wavelengths (0.15dB typical) and maintains return loss of ≥20dB, ensuring minimal signal degradation over the transmission path. Attenuation testing confirms compliance with ANSI/TIA/EIA-455-171-A-2001 standards at both 1310nm (0.25 dB/km) and 1550nm (0.35 dB/km) wavelengths. **Key Advantages:** The Type A to B crossover polarity configuration makes this cable the industry standard for duplex patch applications, eliminating compatibility concerns. The yellow OFNR (Optical Fiber Non-conductive Riser) rated jacket provides fire safety for building installations while maintaining flexibility and durability. TAA compliance ensures eligibility for government and federal procurement programs, making it ideal for public sector and regulated industry deployments. **Applications:** Perfect for connecting SC/APC fiber connections to SC/UPC equipment, this cable excels in telecommunications rooms, network distribution frames, and fiber-to-the-desktop installations. The 9-meter length provides flexibility for medium-distance connections without excessive cable bulk. **Quality & Compliance:** RoHS and ELV compliant construction reflects environmental responsibility. The cable ships from multiple US distribution centers (Danville CA, Fort Worth TX, and Beaufort SC) with free standard shipping on orders exceeding $99. A 90-day limited warranty backs every purchase, providing confidence in long-term reliability. **Custom Options:** Custom lengths are available for specialized installations, allowing you to optimize cable management and network design. Whether you're planning a new fiber network or expanding existing infrastructure, this patch cable delivers the performance and reliability professionals demand.