The JBX93049 40-meter LC/SC Duplex Singlemode Fiber Patch Cable represents professional-grade connectivity for modern optical networks. This comprehensive solution combines exceptional performance specifications with enterprise-level compliance certifications. **Technical Excellence:** Constructed with 9/125 micron core/cladding diameter singlemode fiber, this cable delivers superior signal fidelity for long-distance telecommunications. The G.657.A1 glass fiber specification provides optimized bend performance without compromising transmission quality. With insertion loss measuring ≤0.35dB (typical 0.15dB) and return loss exceeding 20dB, this cable meets stringent industry standards for minimal signal degradation. **Connector Configuration:** The LC/UPC to SC/UPC connector interface utilizes Type A to B crossover polarity, the industry standard for duplex patch cord installations. Both LC and SC connectors feature UPC (Ultra Physical Contact) polishing for optimal performance and durability. **Installation & Compliance:** The OFNR (Optical Fiber Non-Conductive Riser) rated jacket ensures compliance with building codes for vertical cable runs. At just 1.8mm outside diameter, the cable routes easily through conduit and cable management systems. TAA compliance and RoHS/ELV certification satisfy government and enterprise procurement requirements. **Performance Specifications:** - Attenuation: 0.25 dB/km @ 1310nm or 0.35 dB/km @ 1550nm - Return Loss: ≥20dB - Tested per ANSI/TIA/EIA-455-171-A-2001 standards - Temperature range support for diverse environments **Applications:** Ideal for data center interconnects, campus area networks, telecommunications infrastructure, and DWDM systems requiring single-mode fiber capabilities. The 40-meter length accommodates medium to long-distance runs while maintaining signal integrity. **Custom Availability:** Available in custom lengths for specific installation requirements. Ships from multiple US locations with free standard shipping on orders exceeding $99. Backed by 90-day limited warranty ensuring customer confidence in network reliability.