The JBX88278 85-meter ST/ST duplex singlemode fiber patch cable represents a premium solution for telecommunications and data center applications requiring exceptional performance and compliance standards. This cable is built on a foundation of G.657.A1 singlemode glass fiber with a 9/125 core ratio, providing optimal optical characteristics for long-distance signal transmission without bend-induced losses. **Key Performance Specifications:** With measured insertion loss of ≤0.35dB (typical 0.15dB) and return loss exceeding 20dB, this patch cable minimizes signal degradation across extended runs. Attenuation ratings of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm comply with ITU-T G.652 standards, making it suitable for both traditional and modern wavelength-division multiplexed (WDM) systems. **Compliance & Safety:** TAA compliance ensures eligibility for government and institutional procurement. RoHS/ELV certification and adherence to EU directive 2002/95/EC guarantee environmental responsibility. OFNR (Optical Fiber, Non-conductive, Riser-rated) jacketing permits installation in vertical cable runs between floors without conduit, simplifying deployment while maintaining fire safety standards. **Design & Durability:** The 1.8mm outer diameter compact design fits standard cable trays and routing infrastructure. ST/UPC connectors feature low-loss polished ferrules, and the Type A to B crossover configuration is the industry-standard for duplex patch applications. Precision-engineered connectors ensure repeatable mating cycles. **Applications:** Ideal for enterprise network backbones, data center interconnects, telecommunications facilities, medical imaging systems, and any application demanding reliable single-mode fiber connectivity over 85-meter spans. **Warranty & Support:** 90-day limited warranty covers manufacturing defects. Custom length options available for specialized installations. Free standard shipping on orders exceeding $99 from multiple distribution centers (Danville, CA; Fort Worth, TX; Beaufort, SC). **Installation Note:** While pre-terminated patch cables eliminate field splicing, ensure proper handling to avoid connector damage. Store in protective cases when not in use.