The JBX43505 ST/APC to ST/UPC simplex fiber patch cable represents enterprise-class connectivity for demanding network infrastructure. Measuring 70 meters in length, this singlemode fiber cable bridges extended distances while maintaining exceptional signal integrity—critical for telecommunications networks, data centers, and enterprise installations. **Technical Excellence:** Constructed with a precision 9/125 singlemode core and G.657.A1 glass fiber, this cable delivers industry-leading performance. The insertion loss of ≤0.35dB (typical 0.15dB) and return loss of ≥20dB ensure minimal signal degradation. Attenuation specifications of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm meet or exceed telecommunications standards. **Build Quality & Compliance:** The 1.8mm outside diameter cable features OFNR (Riser Rated) jacketing in professional yellow, providing fire safety and durability in building environments. Full TAA compliance and RoHS/ELV certification ensure regulatory adherence for government and enterprise procurement. Manufacturing standards verified by ANSI/TIA/EIA-455-171-A-2001 testing. **Connector Configuration:** The ST/APC to ST/UPC straight-through polarity configuration provides flexibility for diverse network topologies. ST connectors offer reliable mechanical performance with proven field durability. **Flexibility & Support:** Available in custom lengths for specific deployment needs. The 90-day limited warranty provides peace of mind, with convenient shipping from multiple US distribution centers. Free standard shipping on orders exceeding $99. **Applications:** Ideal for long-distance fiber runs in telecom networks, campus area networks (CANs), data center interconnects, and FTTH implementations where signal quality and compliance cannot be compromised.