The JBX42377 30-meter SC/APC to ST/UPC duplex singlemode fiber patch cable represents professional-grade connectivity for demanding network environments. Constructed with precision-engineered 9/125 singlemode fiber and G.657.A1 glass fiber, this cable delivers exceptional performance with insertion loss rated at ≤0.35dB (0.15dB typical) and return loss ≥20dB, tested in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. Key Features: - Duplex configuration for simultaneous bidirectional signal transmission - SC/APC to ST/UPC connector pairing supports mixed-connector network architectures - Low attenuation: 0.25 dB/km @ 1310 nm or 0.35 dB/km @ 1550 nm - Riser-rated (OFNR) jacketing for safe indoor installation - 1.8mm compact outer diameter for tight cable management - Yellow jacket for easy identification and organization - TAA compliant for government and institutional purchasing requirements - RoHS/ELV certified for environmental compliance Applications: This cable excels in telecommunications infrastructure, enterprise data centers, medical facilities, and educational institutions requiring reliable fiber connectivity. The duplex design is particularly valuable for backbone connections, server interconnects, and cross-cabinet patching where simultaneous transmission is required. Technical Specifications: Fiber Type: 9/125 singlemode (G.657.A1) Connectors: SC/APC to ST/UPC Length: 30 meters Polarity: Type A to B Crossover Insertion Loss: ≤0.35dB Return Loss: ≥20dB Outer Diameter: 1.8mm Jacket Rating: Riser (OFNR) Additional Benefits: Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. Custom lengths available for specialized installations. Backed by a 90-day limited warranty. Manufactured in Taiwan, US, or China depending on availability, ensuring consistent quality and supply reliability. Note: While this cable supports long-distance transmission, optimal performance is maintained within standard installation distances. Store in controlled environments and handle connectors with care to preserve attenuation characteristics.