The JBX89206 is a professional-grade 75-meter SC/ST duplex singlemode fiber patch cable engineered for demanding telecommunications and data center applications. With its 9/125 singlemode fiber core and G.657.A1 specification, this cable delivers exceptional optical performance across both 1310 nm and 1550 nm wavelengths, making it suitable for diverse network architectures. **Key Technical Features:** This duplex configuration features SC/UPC to ST/UPC connectors in Type A to B crossover polarity—the most common standard for duplex patch cords. The cable achieves industry-leading optical performance with insertion loss as low as 0.15dB typical (≤0.35dB maximum) and return loss exceeding 20dB. Attenuation specifications of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm ensure signal integrity over extended distances. **Construction and Compliance:** The robust 1.8mm outer diameter with riser-rated (OFNR) jacketing provides both durability and safety in vertical installations. The cable complies with TAA requirements and RoHS/ELV directives, meeting EU Directive 2002/95/EC standards. All cables are attenuation-tested in accordance with ANSI/TIA/EIA-455-171-A-2001 specifications, ensuring quality consistency. **Practical Applications:** Ideal for enterprise networks, telecommunications installations, fiber-to-the-desk deployments, and interconnecting network equipment across extended distances. The 75-meter length provides flexibility for large facility installations without signal degradation. **Additional Benefits:** The distinctive purple jacket facilitates network organization and visual identification of dedicated circuits. Custom lengths are available for specialized installations. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders over $99. Each cable includes a 90-day limited warranty. Manufactured to exacting standards with sourcing from Taiwan, US, and China, this fiber patch cable represents professional-grade networking infrastructure suitable for mission-critical applications.