The JBX42649 40-meter SC/APC to LC/UPC duplex singlemode fiber patch cable represents professional-grade optical connectivity engineered for telecommunications, data center, and enterprise network applications. This comprehensive solution combines superior performance specifications with regulatory compliance and practical functionality. TECHNICAL SPECIFICATIONS This cable features a 9/125 micrometer singlemode core with G.657.A1 glass fiber, the industry standard for single-mode applications. The SC/APC connector provides angled physical contact for minimal back-reflection, while the LC/UPC connector offers universal physical contact capabilities. The duplex configuration enables simultaneous bidirectional transmission with Type A to B crossover polarity—the most common configuration for standard duplex patch cords. PERFORMANCE CHARACTERISTICS Tested in accordance with ANSI/TIA/EIA-455-171-A 2001 standards, the cable delivers exceptional optical performance: insertion loss of ≤0.35dB (0.15dB typical) and return loss of ≥20dB across operational wavelengths (1310nm and 1550nm). Attenuation rates of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm ensure minimal signal degradation over the 40-meter length. CONSTRUCTION AND COMPLIANCE The 1.8mm outside diameter cable features OFNR (optical fiber nonconductive, riser-rated) jacketing, meeting building fire safety codes for in-wall installation. The yellow jacket provides visual identification for quick network management. RoHS and ELV compliant, this cable meets EU Directive 2002/95/EC environmental standards. TAA compliance ensures suitability for U.S. government and GSA Schedule purchases. APPLICATIONS Ideal for data center interconnects, telecommunications backbone networks, enterprise LAN connections, and high-speed network equipment installations. The 40-meter length accommodates medium-distance runs in large facilities. CUSTOMER BENEFITS Ships from multiple U.S. locations (California, Texas, South Carolina) with free standard shipping on orders exceeding $99. Custom lengths available for specific installation requirements. Backed by 90-day limited warranty for peace of mind.