The JBX43502 represents an essential component for professional fiber optic network infrastructure. This 55-meter ST/APC to ST/UPC simplex singlemode fiber patch cable combines precision engineering with reliability, making it ideal for telecommunications, data center, and enterprise networking applications. **Technical Excellence** Constructed with a 9/125 singlemode core and G.657.A1 glass fiber, this cable is rigorously tested for insertion loss (≤0.35dB typical at 0.15dB) and return loss (≥20dB), exceeding industry standards. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure optimal signal integrity across extended network spans. The 1.8mm outer diameter allows flexible routing through cable trays and conduits without performance degradation. **Safety and Compliance** Riser-rated (OFNR) jacketing meets fire safety codes for building installations, while RoHS/ELV directives ensure environmental compliance. TAA certification addresses government procurement requirements, making this cable suitable for public sector projects and regulated environments. **Professional Installation Features** The distinctive yellow jacket simplifies cable identification and management in complex installations. Straight-through polarity configuration eliminates confusion during setup, reducing installation time and potential errors. The ST/APC and ST/UPC connector combination offers hybrid connectivity flexibility for diverse network architectures. **Value and Support** Available in custom lengths for specific application requirements, this cable ships from multiple U.S. locations (California, Texas, South Carolina) for rapid delivery. Orders exceeding $99 qualify for free standard shipping. Each cable includes a 90-day limited warranty, demonstrating manufacturer confidence in quality and performance. Whether deploying fiber connections in new networks or upgrading existing infrastructure, the JBX43502 delivers professional-grade reliability backed by rigorous testing and comprehensive compliance certifications.