The JBX85092 90-meter LC/ST duplex singlemode fiber patch cable is engineered for mission-critical telecommunications, data center, and enterprise networking environments. This professional-grade cable combines superior optical performance with robust physical construction to ensure reliable connectivity in demanding applications. **Technical Specifications:** The cable features a 9/125 singlemode core utilizing G.657.A1 glass fiber technology, supporting both 1310nm and 1550nm wavelengths commonly used in telecommunications. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure minimal signal degradation over the full 90-meter length. Insertion loss is guaranteed at ≤0.35dB (typical 0.15dB), while return loss exceeds 20dB, providing excellent signal integrity for demanding applications. **Connector Configuration:** Equipped with LC/UPC to ST/UPC connectors in a Type A to B crossover duplex configuration—the industry standard for patch cord applications. This setup enables seamless integration with existing network infrastructure while maintaining optimal performance. **Physical Design:** The yellow OFNR (Optical Fiber Non-conductive Riser) rated jacket provides fire-rated protection suitable for vertical installations in multi-story buildings and horizontal cable runs. The slim 1.8mm outside diameter allows flexible routing through cable management systems, conduits, and tight spaces without compromising performance. **Compliance & Warranty:** Fully RoHS and ELV compliant per EU Directive 2002/95/EC, meeting environmental and safety standards for global deployment. Backed by a 90-day limited warranty ensuring peace of mind on your investment. **Applications:** Ideal for telecommunications networks, data centers, server rooms, enterprise campus networks, and high-speed internet service providers. The duplex configuration supports redundant fiber paths or separate transmit/receive channels. **Custom Solutions:** Custom lengths available for specialized installation requirements beyond the standard 90-meter specification. **Shipping & Support:** Ships from multiple U.S. distribution centers (California, Texas, South Carolina) ensuring fast delivery. Qualified orders over $99 include free standard shipping.