The JBX42506 ST/APC to ST/UPC duplex fiber patch cable represents a professional-grade solution for telecommunications and data center connectivity requiring reliable, long-distance signal transmission. At 75 meters, this cable bridges substantial distances while maintaining signal fidelity critical to modern network operations. **Technical Excellence:** Built with 9/125 singlemode fiber core construction, this cable supports the tight tolerances required for single-mode applications. The G.657.A1 glass fiber specification ensures compatibility with modern network equipment while providing bend-insensitive characteristics for easier installation. With an outside diameter of just 1.8mm, the cable maintains flexibility without compromising durability. **Performance Specifications:** Insertion loss testing shows exceptional performance at ≤0.35dB (0.15dB typical), with return loss exceeding ≥20dB, meeting industry standards tested per ANSI/TIA/EIA-455-171-A-2001. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure minimal signal degradation across the full cable length. **Compliance & Standards:** TAA compliant for government and enterprise procurement, with full RoHS/ELV compliance (EU Directive 2002/95/EC). The riser-rated (OFNR) jacketing meets fire safety codes for building installations. Yellow PVC jacketing provides excellent visibility in crowded patch panels and cable management systems. **Applications:** Ideal for data center interconnects, fiber-to-the-desk installations, telecommunications infrastructure, and enterprise backbone connectivity. The Type A to B crossover configuration handles standard duplex patching scenarios across most network architectures. **Customization & Support:** Available in custom lengths for specific installation requirements. Includes 90-day limited warranty. Free standard shipping on orders over $99. Ships from multiple US locations for rapid deployment.