The JBX43625 70m FC/APC to ST/UPC simplex singlemode fiber patch cable represents a professional-grade solution for organizations requiring reliable optical connectivity across extended distances. Engineered for superior performance, this cable combines precision connector compatibility with advanced fiber optic technology. **Technical Excellence:** Features a 9/125 singlemode core constructed from G.657.A1 grade glass fiber, specifically designed for long-distance single-wavelength transmission. The cable achieves exceptional low insertion loss (≤0.35dB, typically 0.15dB) and high return loss (≥20dB), ensuring signal integrity across the full 70-meter length. Performance is validated according to ANSI/TIA/EIA-455-171-A standards, with attenuation measured at 0.25 dB/km (1310nm) or 0.35 dB/km (1550nm). **Connector Technology:** The FC/APC (Angled Physical Contact) to ST/UPC (Straight Physical Contact) configuration accommodates diverse network equipment while the "straight through" polarity supports standard unidirectional transmission. The APC-angled termination minimizes back-reflection, critical for sensitive applications. **Durability & Compliance:** Encased in riser-rated OFNR jacketing with a compact 1.8mm outer diameter, this simplex cable resists environmental stressors while fitting within space-constrained installations. Full RoHS/ELV and TAA compliance ensures suitability for government contracts and regulated environments. **Flexibility & Service:** Custom lengths available for unique deployment scenarios. Multi-location shipping (California, Texas, South Carolina) ensures rapid delivery. The 90-day limited warranty provides confidence in product reliability. **Ideal Applications:** - Long-distance fiber optic backbone networks - Campus area networks (CANs) - Telecommunications infrastructure - Government and enterprise data centers - Test and measurement environments This investment-grade patch cable delivers the performance, compliance, and reliability demanded by IT professionals and network engineers.