The JBX89193 12-meter SC/ST singlemode fiber patch cable represents a premium solution for telecommunications and data center professionals requiring dependable optical connectivity. This duplex patch cable features a 9/125 singlemode core, delivering superior performance for long-distance signal transmission with minimal attenuation at both 1310nm (0.25 dB/km) and 1550nm (0.35 dB/km) wavelengths. Key Technical Specifications: The cable demonstrates exceptional optical performance with insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, meeting rigorous ANSI/TIA/EIA-455-171-A-2001 standards. The G.657.A1 glass fiber construction ensures reliable signal quality, while the 1.8mm outer diameter provides flexibility without compromising durability. Construction and Compliance: Featuring riser-rated (OFNR) jacketing, this cable meets building safety codes for plenum and non-plenum installations. The cable is fully TAA-compliant and adheres to EU directive 2002/95/EC (RoHS), making it suitable for government and regulated enterprise deployments. Polarity and Configuration: The Type A to B crossover polarity configuration is the industry standard for duplex patch cords, eliminating guesswork during installation. SC/UPC and ST/UPC connectors ensure low-loss, repeatable connections. Applications: Ideal for telecommunications infrastructure, data center fiber backbones, campus area networks (CANs), and enterprise-grade network implementations. The distinctive purple jacketing simplifies cable identification and management in complex environments. Shipping and Support: Shipped from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders over $99. Backed by a 90-day limited warranty. Custom lengths available for specialized installations. Maintenance Tip: Keep connector end-caps clean and stored properly when not in use to maintain optimal optical performance. The 9/125 core is more robust than higher core counts, reducing bending-related signal loss.