The JBX88309 ST/ST Duplex Singlemode Fiber Patch Cable represents enterprise-grade connectivity for mission-critical network infrastructure. Spanning 90 meters of precision optical fiber, this duplex cable combines two individual singlemode strands for comprehensive bidirectional communication in a single convenient assembly. Technical Excellence: The 9/125 micron singlemode core with G.657.A1 glass fiber delivers industry-leading performance metrics. Insertion loss testing confirms 0.15dB typical performance (≤0.35dB maximum), while return loss consistently exceeds 20dB across the operating spectrum. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm meet ANSI/TIA/EIA standards, ensuring compatibility with long-wavelength telecommunications systems. Compliance & Certifications: TAA compliance makes this cable eligible for government and institutional procurement programs. RoHS/ELV certification and EU Directive 2002/95/EC compliance demonstrate commitment to environmental and safety standards. All performance testing follows established industry protocols, guaranteeing consistency and reliability. Construction & Durability: The 1.8mm outside diameter green OFNR (Riser Rated) jacket provides fire-resistant protection suitable for vertical building installations without conduit. Type A to B crossover polarity configuration is the industry standard for duplex patch cords. The 90-day limited warranty covers defects in materials and workmanship. Applications: Perfect for telecommunications closets, data center backbone connections, campus network expansions, and long-haul signal transmission. The extended 90-meter length reduces splicing requirements and installation complexity. Customization: Standard 90m length can be customized to specific project requirements. Multiple fulfillment centers across the US (Danville CA, Fort Worth TX, Beaufort SC) enable rapid delivery. Free standard shipping applies to orders exceeding $99, making bulk installations economical.