The JBX42672 FC/APC to LC/UPC duplex singlemode fiber patch cable represents a professional-grade solution for critical network infrastructure. This 10-meter cable is specifically engineered to meet the demanding requirements of modern telecommunications, data center, and enterprise network environments. **Key Technical Specifications:** Built on 9/125 singlemode fiber technology with G.657.A1 glass composition, this cable delivers superior optical performance. The FC/APC connector provides excellent return loss (≥20dB), while the LC/UPC termination ensures compatibility with standard network equipment. Insertion loss remains exceptionally low at ≤0.35dB (typical 0.15dB), minimizing signal degradation across both 1310nm and 1550nm transmission windows—critical for long-distance and high-bandwidth applications. **Design & Safety Features:** The 1.8mm outside diameter provides space efficiency in cable management, while the OFNR riser-rated jacketing ensures compliance with fire codes in commercial buildings. The distinctive yellow jacket enables quick visual identification in complex network environments, reducing installation errors and simplifying maintenance. **Compliance & Standards:** Fully TAA compliant and manufactured to ANSI/TIA/EIA-455-171-A-2001 standards, this cable meets rigorous attenuation testing requirements. RoHS/ELV certification ensures environmental responsibility and regulatory compliance across global markets. **Versatile Applications:** Ideally suited for fiber-to-the-desktop (FTTD) installations, network equipment interconnections, and high-performance backbone connections. The Type A to B crossover polarity configuration accommodates standard duplex patch cord applications. **Custom Solutions Available:** While this model provides 10m length, custom lengths are available upon request to meet specific installation requirements. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. 90-day limited warranty provides additional peace of mind for your investment.