The JBX42189 7-meter LC/APC to FC/UPC duplex singlemode fiber patch cable represents professional-grade connectivity for mission-critical network infrastructure. This cable combines precision engineering with proven reliability, making it an ideal choice for data centers, telecommunications facilities, and enterprise network installations. **Technical Excellence** Built with 9/125 singlemode core fibers and G.657.A1 glass construction, this cable delivers superior performance characteristics. The LC/APC connectors feature angled polished surfaces that minimize back-reflections, while the FC/UPC connectors provide excellent mechanical strength. Insertion loss of ≤0.35dB (0.15dB typical) ensures minimal signal degradation across the 7-meter length, with tested attenuation of 0.25 dB/km at 1310 nm or 0.35 dB/km at 1550 nm. **Design and Compliance** The distinctive yellow jacket offers excellent visibility for network administrators while maintaining OFNR (Riser Rated) safety certification for in-building use. Type A to B crossover duplex polarity configuration accommodates standard network switching equipment. Full RoHS/ELV and TAA compliance ensures suitability for government and regulated industry deployments. **Practical Benefits** With 1.8mm outer diameter and flexible plastic jacketing, installation and routing through conduit systems is straightforward. The cable ships from multiple US locations (California, Texas, and South Carolina) for rapid delivery, with free standard shipping on orders exceeding $99. **Custom Solutions** Require different cable lengths? Custom lengths are available to precisely match your network topology and reduce cable waste. Quality assurance includes 90-day limited warranty coverage and performance testing to ANSI/TIA/EIA-455-171-A standards. Whether upgrading existing fiber infrastructure or deploying new networks, the JBX42189 provides the performance, compliance, and reliability required for professional installations.