The JBX42572 ST/APC to FC/APC Duplex Singlemode Fiber Patch Cable represents a premium solution for telecommunications and data center professionals requiring uncompromising optical performance. This 1.5-meter cable connects ST/APC male connectors to FC/APC connectors using a Type A to B crossover polarity configuration—the most common standard for duplex patch cord applications. Optical Performance Excellence: Designed with G.657.A1 glass fiber and 9/125 core geometry, this singlemode cable excels in long-distance, high-bandwidth applications. The typical insertion loss of just 0.15dB (maximum 0.35dB) minimizes signal degradation, while return loss exceeding 20dB ensures reliable two-way communication. Performance is verified across both 1310nm and 1550nm wavelengths per ANSI/TIA/EIA-455-171-A-2001 standards. Industrial-Grade Construction: The 1.8mm outside diameter provides optimal flexibility without compromising durability. The bright yellow OFNR (Optical Fiber Non-conductive Riser) jacket meets building codes for vertical installations and offers superior flame resistance. APC (Angled Physical Contact) connectors reduce back-reflection interference, critical for sensitive applications. TAA Compliance & Versatility: Fully TAA-compliant and RoHS/ELV certified, this cable meets government procurement requirements. Available in custom lengths for specialized deployments, it ships from multiple US locations with free standard shipping on orders exceeding $99. Ideal for network backbone connections, server interconnects, and telecommunications infrastructure where signal integrity is non-negotiable. The 90-day limited warranty provides confidence in long-term reliability.