The JBX42326 SC/APC to FC/UPC duplex singlemode fiber patch cable represents professional-grade connectivity for fiber optic networks requiring superior performance and reliability. This 75-meter cable is engineered with precision-constructed 9/125 singlemode fiber cores using G.657.A1 glass composition, specifically selected for optimal signal transmission across telecommunications infrastructure. Key Technical Specifications: This duplex configuration delivers Type A to B crossover polarity, the most common configuration for duplex patch cords in modern networks. Insertion loss measurements of ≤0.35dB (with 0.15dB typical performance) and return loss ratings of ≥20dB ensure minimal signal degradation. Attenuation performance reaches 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm, complying with ANSI/TIA/EIA-455-171-A-2001 standards. The 1.8mm outside diameter provides standard compatibility with industry-specified cable management systems. Durable Construction: The cable features OFNR (Optical Fiber Non-Conductive Riser-Rated) jacketing, providing fire-safety compliance for in-building installations. The yellow outer jacket aids in visual identification during installations and maintenance. Plastic accessory components ensure electromagnetic immunity and reduce interference. Compliance & Certification: TAA compliant and RoHS/ELV certified under EU directive 2002/95/EC, this cable meets rigorous government procurement standards. Manufactured across quality facilities in Taiwan, the United States, and China, each unit undergoes comprehensive attenuation testing. Perfect Applications: Ideal for telecommunications facilities, data center interconnections, network backbone installations, and long-distance signal transmission. The 75-meter length accommodates challenging network layouts where standard patch cables prove insufficient. Customization & Support: Custom lengths are available to match specific installation requirements. With a 90-day limited warranty and free standard shipping on orders exceeding $99, this cable represents excellent value for professional network installations.