The JBX43655 70-meter ST/APC to LC/UPC simplex singlemode fiber patch cable is engineered for telecommunications professionals and network infrastructure specialists requiring reliable, high-performance optical connectivity. This cable connects ST/APC connectors to LC/UPC connectors in a single-strand (simplex) configuration, enabling unidirectional fiber signal transmission across your network infrastructure. **Technical Excellence:** Built with a 9/125 singlemode core utilizing G.657.A1 glass fiber, this cable meets stringent performance standards. Tested for insertion loss of ≤0.35dB (typical 0.15dB) and return loss ≥20dB, it exceeds industry requirements for minimal signal degradation. Attenuation specifications of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm ensure optimal performance across standard telecom wavelengths. **Installation & Compliance:** The riser-rated (OFNR) jacket provides superior fire resistance and building code compliance for vertical installations. The distinctive yellow jacket aids in cable identification and organization. Measuring 1.8mm in outside diameter, it integrates seamlessly into standard cable management systems. TAA compliance and RoHS/ELV certification ensure suitability for government and enterprise procurement requirements. **Practical Advantages:** The 70-meter length accommodates medium-distance backbone connections without splicing, reducing potential failure points. Available in custom lengths for specific installations. The straight-through polarity configuration ensures proper signal alignment. Free standard shipping on orders exceeding $99 reduces procurement costs, while 90-day warranty coverage provides peace of mind. **Applications:** Ideal for data center interconnects, telecommunications facilities, network backbone infrastructure, and industrial automation systems. The simplex design suits applications requiring unidirectional transmission or cost-effective point-to-point connections. **Quality Assurance:** Attenuation testing adheres to ANSI/TIA/EIA-455-171-A-2001 standards, ensuring consistent performance. Multi-location US shipping (California, Texas, South Carolina) enables rapid delivery to enterprises nationwide.