The JBX42648 SC/APC to LC/UPC duplex singlemode fiber patch cable represents a robust solution for modern fiber optic network infrastructure. At 35 meters in length, it bridges distances while maintaining signal quality in demanding telecommunications and data center environments. **Key Technical Specifications:** This cable features a 9/125 singlemode core constructed from G.657.A1 grade glass fiber, ensuring optimal performance for single-wavelength transmission. The SC/APC connector on one end connects to LC/UPC on the other, with Type A to B crossover polarity configuration—the industry standard for duplex patch cords. Insertion loss is impressively low at ≤0.35dB (0.15dB typical), while return loss exceeds 20dB, minimizing signal reflection and degradation. **Performance Characteristics:** Attenuation measurements comply with ANSI/TIA/EIA-455-171-A-2001 standards, with specifications of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm wavelengths. This dual-wavelength capability makes the cable suitable for diverse applications including standard telecommunications and dense wavelength division multiplexing (DWDM) systems. **Construction & Compliance:** The 1.8mm diameter cable features OFNR (Optical Fiber Non-Conductive Riser) rated jacketing, meeting fire safety codes for building installations. All materials comply with RoHS/ELV directives (EU 2002/95/EC), and the cable carries TAA (Trade Agreements Act) certification, making it suitable for government and institutional procurement. **Applications:** Ideal for telecommunications infrastructure, enterprise data centers, carrier networks, and fiber-to-the-premises (FTTP) installations. The yellow jacket facilitates easy identification in cable trays and during maintenance procedures. **Shipping & Availability:** Enjoy free standard shipping on orders over $99, with distribution centers in Danville CA, Fort Worth TX, and Beaufort SC for expedited delivery. Available in custom lengths to meet specific installation requirements. Backed by a 90-day limited warranty, ensuring peace of mind on your network infrastructure investment.