The JBX42145 70-meter SC/APC to SC/UPC duplex single mode fiber patch cable represents professional-grade networking infrastructure designed for mission-critical applications. This extended-length cable accommodates long-distance fiber runs while maintaining exceptional optical performance and signal clarity. **Technical Excellence** Constructed with 9/125 singlemode fiber and G.657.A1 glass fiber, this cable delivers industry-leading performance metrics. Insertion loss measures ≤0.35dB (typical 0.15dB), while return loss exceeds 20dB, ensuring minimal signal reflection and attenuation across both 1310nm and 1550nm wavelengths. Attenuation specifications of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm surpass standard requirements. **Compliance & Safety** TAA (Trade Agreements Act) compliance makes this cable ideal for government contracts and secure deployments. RoHS/ELV certification ensures environmental responsibility without compromising performance. OFNR (Optical Fiber Non-conductive Riser) rating provides fire-safety compliance for building installations, while the 1.8mm compact diameter facilitates routing through congested cable trays and conduits. **Practical Applications** Ideal for telecommunications infrastructure, data center interconnections, telecommunications closets, and long-distance campus network connections. The Type A to B crossover polarity configuration handles the most common duplex patch cord requirements, eliminating compatibility concerns. **Quality Assurance** Testing conforms to ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing reliability in production environments. Backed by a 90-day limited warranty and available in custom lengths upon request, this cable provides flexibility for unique installation requirements. **Value & Logistics** Shipped from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC), ensuring rapid delivery. Free standard shipping applies to orders exceeding $99, reducing total cost of ownership for infrastructure projects requiring multiple cables or extended runs.