The JBX43562 55-meter ST/APC to FC/UPC simplex singlemode fiber patch cable represents enterprise-grade optical connectivity engineered for telecommunications, data centers, and critical network infrastructure. This precision-manufactured cable combines reliable performance with regulatory compliance, making it an ideal choice for professional installations. **Technical Excellence:** Constructed with a 9/125 singlemode fiber core and G.657.A1 glass fiber, this cable delivers exceptional performance characteristics. Attenuation measurements of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm ensure minimal signal degradation across both common transmission windows. Tested insertion loss of ≤0.35dB (0.15dB typical) and return loss of ≥20dB exceed industry standards, providing confidence in signal quality and network reliability. **Connector Compatibility:** The simplex configuration features ST/APC (Straight Tip/Angled Physical Contact) to FC/UPC (Ferrule Connector/Ultra Physical Contact) connectors, offering flexibility in mixed-connector network environments. The angled polish on the ST/APC side minimizes back-reflection, while the UPC termination on the FC/UPC end provides excellent coupling efficiency. **Compliance & Standards:** Fully TAA compliant and manufactured to meet ANSI/TIA/EIA-455-171-A-2001 standards, this cable satisfies government procurement requirements and enterprise compliance mandates. RoHS and ELV directive compliance ensure environmental responsibility without compromising performance. **Physical Characteristics:** The bright yellow riser-rated (OFNR) jacketing provides visual identification for simplified circuit management while meeting building code requirements for in-wall installations. The compact 1.8mm outer diameter enables installation in confined spaces without sacrificing durability. Standard 55-meter length addresses mid-range distribution requirements, with custom lengths available for specialized applications. **Practical Applications:** Ideal for telecommunications closets, data center interconnects, fiber-to-the-premises (FTTP) installations, and carrier network deployments. The simplex configuration suits point-to-point transmission links where unidirectional signal flow is acceptable. **Support & Warranty:** Backed by a 90-day limited warranty and available with free standard shipping on orders exceeding $99, this cable provides exceptional value with minimal risk. Ships from multiple US locations ensuring rapid delivery to your facility.