The JBX42372 SC/APC to ST/UPC duplex singlemode fiber patch cable represents a professional-grade solution for organizations requiring reliable, high-performance fiber optic connectivity. Manufactured in accordance with ANSI/TIA/EIA-455-171-A standards, this 10-meter cable delivers exceptional signal integrity across telecommunications and data center applications. **Technical Specifications:** This duplex patch cable features 9/125 singlemode fiber cores with G.657.A1 glass fiber specification, supporting wavelengths from 1310nm to 1550nm. The cable achieves remarkable low attenuation rates—0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm—ensuring minimal signal degradation over extended runs. Insertion loss remains impressively low at ≤0.35dB (0.15dB typical), while return loss performance exceeds 20dB for signal integrity in critical applications. **Connector Technology:** The SC/APC (Angled Physical Contact) to ST/UPC (Straight Physical Contact) connector configuration enables seamless integration across diverse network environments, facilitating cross-vendor interoperability. The Type A to B crossover polarity configuration represents industry-standard duplex cabling architecture, ensuring straightforward installation and reduced troubleshooting time. **Construction & Compliance:** With a 1.8mm outer diameter and OFNR (Optical Fiber Non-Conductive Riser-rated) jacketing, this cable meets stringent building codes while providing enhanced fire safety. The distinctive yellow jacket aids in network organization and maintenance visibility. TAA compliance and RoHS/ELV certification ensure compatibility with government procurement requirements and environmental regulations. **Applications:** Ideally suited for telecommunications networks, data center interconnects, campus backbone installations, and long-distance fiber signal transmission. The singlemode specification makes this cable perfect for carrier-grade applications requiring extended reach and superior signal fidelity. **Warranty & Support:** Backed by a 90-day limited warranty and available in custom lengths for specialized installations. Ships from multiple US distribution centers with free standard shipping on orders exceeding $99.