The JBX42195 LC/APC to FC/UPC duplex singlemode fiber patch cable represents a premium connectivity solution for demanding network environments. This 20-meter cable is meticulously engineered to support high-performance fiber optic communications with exceptional reliability and minimal signal loss. **Technical Specifications:** This duplex patch cable features a 9/125 singlemode core with G.657.A1 glass fiber construction, enabling long-distance signal transmission with minimal attenuation. At 1310 nm, the cable delivers 0.25 dB/km attenuation, while at 1550 nm it provides 0.35 dB/km, making it suitable for both C-band and L-band wavelength applications. The insertion loss specification of ≤0.35dB (0.15dB typical) ensures minimal signal degradation, while the return loss of ≥20dB maintains exceptional signal integrity. **Connector Specifications:** The LC/APC (Local Connector with Angled Physical Contact) to FC/UPC (Ferrule Connector with Ultra Physical Contact) configuration provides Type A to B crossover polarity, the industry-standard configuration for duplex patch cords. This combination allows seamless integration with diverse network equipment and infrastructure. **Safety and Compliance:** Designed with an OFNR (Optical Fiber Non-conductive Riser) rated jacket, this cable meets critical fire safety standards for vertical runs in buildings. TAA compliant certification ensures adherence to Trade Agreements Act requirements, making it suitable for government, federal, and enterprise procurement. Full RoHS/ELV compliance reflects our commitment to environmental responsibility. **Applications:** Ideal for telecommunications networks, data center interconnects, carrier facilities, FTTH (Fiber to the Home) installations, premises cabling systems, and mission-critical network infrastructure. The bright yellow jacket facilitates rapid identification and cable management in complex installations. **Customization:** Custom lengths are available to meet specific deployment requirements. The 1.8mm outside diameter provides flexibility in routing through tight spaces while maintaining durability. **Warranty & Support:** Backed by a 90-day limited warranty and backed by our commitment to quality assurance. Ships from multiple U.S. distribution centers for fast delivery. Free standard shipping available on orders exceeding $99.