The JBX42537 ST/APC duplex singlemode fiber patch cable represents professional-grade connectivity for mission-critical network applications. This 80-meter cable features 9/125 singlemode fiber with G.657.A1 rated glass fiber, engineered to meet the most demanding telecommunications and data center standards. Key Technical Specifications: - Duplex configuration with two fiber strands - ST/APC connectors on both ends (Type A to B crossover) - 80-meter length for extended reach installations - 9/125 singlemode core for long-distance signal transmission - Low insertion loss: ≤0.35dB (0.15dB typical) - High return loss: ≥20dB for signal integrity - Attenuation: 1310 nm: 0.25 dB/km or 1550 nm: 0.35 dB/km - 1.8mm outside diameter for flexible routing - OFNR riser-rated jacket for fire safety compliance Compliance and Quality Assurance: TAA compliant for government and institutional procurement. RoHS/ELV directive 2002/95/EC certified, ensuring environmental responsibility. All cables are attenuation tested per ANSI/TIA/EIA-455-171-A-2001 standards. 90-day limited warranty provides peace of mind. Applications: Ideal for telecommunications facilities, data centers, network infrastructure upgrades, and long-distance signal transmission. The yellow jacket provides superior identification in high-density cable environments, reducing installation errors and simplifying maintenance. Shipping and Availability: Ships from multiple U.S. locations (California, Texas, South Carolina) with free standard shipping on orders over $99. Custom lengths available to meet specific project requirements. Housed in professional packaging for protection during transit and storage.