The JBX43566 75-meter ST/APC to FC/UPC simplex fiber optic patch cable represents professional-grade connectivity for modern network infrastructure. This cable combines precision engineering with practical design features that telecommunications professionals and data center managers demand. **Superior Fiber Construction** Utilizing 9/125 singlemode fiber with G.657.A1 glass composition, this cable delivers exceptional performance across standard telecommunications wavelengths. The singlemode design eliminates modal dispersion, ensuring signal integrity over extended distances. With an outside diameter of just 1.8mm, the cable remains flexible while maintaining durability through its OFNR riser-rated jacket. **Exceptional Signal Quality** The cable's insertion loss of ≤0.35dB (typical 0.15dB) and return loss ≥20dB exceed industry standards, minimizing signal loss and reflections. These specifications are critical for maintaining data integrity in high-speed networks and reducing the need for signal regeneration across longer runs. Testing conducted per ANSI/TIA/EIA-455-171-A-2001 standards confirms reliable performance. **Connector Compatibility** The ST/APC to FC/UPC configuration provides versatility for connecting different network equipment types. The ST/APC connector features angled polishing for superior return loss, while the FC/UPC connector offers straightforward bayonet coupling. This combination supports straight-through polarity for seamless connectivity. **Compliance & Safety** TAA compliant for government procurement requirements. RoHS/ELV directive compliance ensures environmental responsibility. Manufactured in Taiwan, USA, or China for quality assurance and competitive pricing. **Practical Applications** Ideal for telecommunications backbone networks, data center equipment interconnects, test and measurement setups, and long-distance signal transmission where signal integrity is paramount. The extended 75-meter length reduces the need for multiple patch cables and connectors, minimizing insertion losses. **Warranty & Support** Backed by a 90-day limited warranty. Free standard shipping on orders exceeding $99. Available in custom lengths for specialized installations. **Maintenance** Regularly inspect connectors for dust and contamination. Use proper fiber cleaning materials and connector caps to maintain optimal performance. Store in climate-controlled environments to preserve fiber properties.