The JBX43289 40-meter LC/APC to ST/APC simplex singlemode fiber patch cable represents a professional-grade solution for single-strand fiber optic signal transmission in data center, telecommunications, and enterprise network environments. **Technical Excellence:** Built with a 9/125 micrometer singlemode fiber core and G.657.A1 glass fiber specification, this cable meets stringent ANSI/TIA/EIA standards for optical performance. The APC (angled physical contact) connectors on both ends minimize reflection and provide superior return loss characteristics (≥20dB), critical for maintaining signal integrity over longer transmission distances. With typical insertion loss of just 0.15dB and maximum 0.35dB, signal degradation remains minimal even at the 40-meter length. **Connector Configuration:** The LC/APC to ST/APC connector combination provides compatibility across diverse network equipment. LC connectors offer compact form-factor density ideal for high-density patch panels, while ST/APC connectors serve legacy and specialized network infrastructure. The straight-through polarity ensures reliable signal transmission without additional adapters. **Construction & Durability:** With a slim 1.8mm outside diameter jacketing rated OFNR (Optical Fiber Non-conductive Riser), this cable meets fire safety requirements for indoor vertical runs and plenum applications. The yellow jacket provides instant visual identification, reducing installation errors and simplifying network management. **Compliance & Certification:** Fully TAA compliant for government procurement, RoHS and ELV directive certified, manufactured with quality standards from Taiwan, US, and China facilities. Every cable undergoes attenuation testing in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. **Custom Solutions:** While this product ships in 40-meter configuration, custom lengths are available to match your exact deployment requirements. Free standard shipping applies on orders exceeding $99. **Ideal Applications:** - Data center interconnects - Telecommunications networks - Enterprise fiber backbone connections - Network equipment patching - High-reliability signal transmission Backed by a 90-day limited warranty, the JBX43289 delivers enterprise-grade performance for mission-critical fiber optic installations.