The JBX42992 55-meter LC/UPC to LC/UPC simplex singlemode fiber patch cable is engineered for professionals who demand reliability and performance in fiber optic network installations. This cable serves as a critical component in modern telecommunications infrastructure, data center connectivity, and enterprise network systems. **Superior Performance Specifications:** Built with a 9/125 micrometer singlemode fiber core featuring G.657.A1 grade specifications, this cable delivers exceptional optical performance. The ≤0.35dB insertion loss (0.15dB typical) and ≥20dB return loss ensure minimal signal degradation over the 55-meter span. Attenuation ratings of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm provide consistent performance across standard telecommunications wavelengths. **Build Quality and Compliance:** The 1.8mm outside diameter jacket is OFNR (Optical Fiber Non-conductive Riser) rated, making it suitable for building installations where fire-safety standards must be met. TAA compliance ensures eligibility for government and institutional procurement. RoHS/ELV directive compliance confirms environmental responsibility and absence of restricted hazardous substances. **Practical Applications:** • Data center interconnects and backbone networks • Telecommunications carrier networks • Enterprise campus networks • Fiber-to-the-premises (FTTP) installations • Long-distance signal transmission • Laboratory and test environments • Broadcasting and media facilities **Key Advantages:** The simplex design transmits signals in one direction, making it ideal for unidirectional applications. The LC/UPC connector interface provides proven reliability with low back-reflection characteristics. Yellow jacket color aids in visual identification and cable management within crowded network environments. The straight-through (direct) polarity configuration ensures straightforward installation. **Shipping and Availability:** With free standard shipping on orders exceeding $99, this TAA-compliant cable offers excellent value. Available from multiple US distribution centers (Danville CA, Fort Worth TX, and Beaufort SC) for rapid delivery. Custom lengths are available to meet specific installation requirements, providing flexibility for unique network configurations. **Technical Standards:** All products are attenuation tested in accordance with ANSI/TIA/EIA-455-171-A-2001 standards, ensuring compliance with industry specifications. The 90-day limited warranty provides peace of mind for your network investment. Whether upgrading existing infrastructure or implementing new fiber optic systems, the JBX42992 delivers the performance, reliability, and compliance standards required by professional network installations.