The JBX42652 55-meter SC/APC to LC/APC duplex singlemode fiber patch cable represents a professional-grade solution for long-distance fiber optic network installations. This cable is engineered to bridge SC/APC-terminated equipment with LC/UPC systems, making it ideal for telecommunications networks, data centers, and enterprise fiber infrastructure. **Technical Excellence** Manufactured with 9/125 singlemode fiber (G.657.A1 specification), this cable delivers superior optical performance. Testing confirms insertion loss of ≤0.35dB (typical 0.15dB) and return loss ≥20dB, meeting ANSI/TIA/EIA-455-171-A standards. The 55-meter length minimizes signal degradation over extended distances while maintaining reliable data transmission at both 1310nm and 1550nm wavelengths. **Durability and Compliance** The yellow riser-rated (OFNR) jacket provides flame-resistant protection suitable for vertical runs in building structures. RoHS and ELV compliant, this cable meets stringent environmental and safety standards. TAA compliance makes it eligible for government and federal procurement programs. The 1.8mm diameter jacket ensures efficient pathway utilization without excessive bulk. **Versatile Applications** Ideal for telecommunications carriers, ISPs, data center operators, and enterprise network administrators. The Type A to B crossover polarity configuration is standard for duplex patch cords, simplifying integration into existing infrastructure. Custom lengths are available for specific deployment requirements. **Practical Advantages** Free standard shipping on orders exceeding $99 reduces acquisition costs. Multiple U.S. fulfillment centers (California, Texas, South Carolina) ensure rapid delivery. The 90-day limited warranty provides peace of mind for critical network installations. The bright yellow color facilitates easy identification and troubleshooting in complex cable management environments. **Specifications Summary** Cable length: 55m | Fiber type: 9/125 singlemode | Connectors: SC/APC to LC/UPC duplex | Jacket: Riser-rated (OFNR) | Insertion loss: ≤0.35dB | Return loss: ≥20dB | Compliances: RoHS, ELV, TAA | Warranty: 90 days