The JBX42448 85-meter FC/APC to FC/UPC duplex singlemode fiber patch cable represents the gold standard in enterprise-grade optical connectivity. Engineered for mission-critical telecommunications infrastructure, this cable combines precision engineering with proven reliability to deliver consistent, high-performance fiber signal transmission. **Superior Optical Performance** Featuring a 9/125 singlemode fiber core with advanced G.657.A1 glass technology, this cable achieves exceptional optical characteristics. With typical insertion loss of just 0.15dB and maximum attenuation of ≤0.35dB, it exceeds industry standards for signal fidelity. Return loss of ≥20dB ensures minimal signal reflection, critical for maintaining data integrity in high-speed networks. Performance is validated across both 1310nm and 1550nm wavelengths, supporting diverse network architectures. **Robust Construction** The cable's OFNR riser-rated yellow jacket provides fire-resistant protection suitable for vertical runs in multi-story buildings while maintaining visibility for cable management. The durable plastic exterior protects the sensitive fiber core from environmental stress, ensuring longevity in demanding installations. At just 1.8mm outer diameter, it fits comfortably in tight cable trays and conduit systems. **Compliance & Standards** TAA compliance ensures this cable meets federal procurement requirements for government and institutional buyers. RoHS/ELV certification confirms environmental responsibility, while ANSI/TIA/EIA-455-171-A standards validation guarantees performance consistency. This cable is manufactured in Taiwan, the United States, and China with quality assurance throughout. **Practical Applications** Ideal for data center interconnects, campus network backbones, and telecommunications infrastructure. The 85-meter length accommodates mid-range distances while the duplex configuration supports simultaneous bidirectional transmission. Custom lengths are available for specialized deployment scenarios. **Shipping & Support** With free standard shipping on orders exceeding $99, domestic availability from multiple distribution centers (Danville CA, Fort Worth TX, Beaufort SC) ensures rapid delivery. The 90-day limited warranty provides peace of mind for critical installations.