The JBX87052 55m LC/SC duplex singlemode fiber patch cable represents professional-grade connectivity for mission-critical network applications. This high-performance cable is engineered to meet the demanding requirements of modern telecommunications, data center, and enterprise networking environments. **Technical Excellence** Constructed with G.657.A1 glass fiber, the cable features a 9/125 singlemode core optimized for long-distance signal transmission. The cable demonstrates exceptional performance metrics: insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, ensuring minimal signal degradation over the 55-meter span. Attenuation testing confirms performance at 1310 nm: 0.25 dB/km and 1550 nm: 0.35 dB/km, meeting stringent ANSI/TIA/EIA-455-171-A standards. **Connector Configuration** The LC/UPC to SC/UPC connector arrangement in Type A to B crossover polarity provides the most common duplex patch cord configuration for seamless network integration. Both connectors feature UPC (Ultra-Physical Contact) polishing for optimal performance and reliability. **Compliance & Safety** Fully TAA (Trade Agreements Act) compliant and certified under EU directive 2002/95/EC (RoHS/ELV), this cable meets government procurement requirements. The OFNR (Optical Fiber Non-conductive Riser) rating with 1.8mm outside diameter ensures compliance with building safety codes and fire regulations, making it suitable for installation in vertical risers and plenum environments. **Practical Applications** Ideal for connecting network equipment across large facilities, multi-story buildings, or campus networks. The 55-meter length eliminates the need for intermediate splicing while the durable blue jacket provides clear identification for cable management. Custom lengths are available for specialized requirements. **Shipping & Support** Ships from multiple U.S. locations (Danville CA, Fort Worth TX, and Beaufort SC) with free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty ensuring customer confidence in this critical infrastructure component.