The JBX89172 55-meter SC/SC duplex singlemode fiber patch cable represents the gold standard in optical connectivity solutions for demanding network environments. Designed for telecommunications professionals and IT infrastructure specialists, this cable delivers the performance, reliability, and compliance standards required by modern data centers and enterprise networks. **Superior Optical Performance** This singlemode cable features a precise 9/125 micrometer core with G.657.A1 glass fiber construction, optimized for extended-distance signal transmission. With insertion loss specifications of ≤0.35dB and return loss ≥20dB, the cable meets ANSI/TIA/EIA standards for attenuation testing. Performance is consistent across key telecommunications wavelengths: 1310nm at 0.25dB/km and 1550nm at 0.35dB/km, making it suitable for both legacy and next-generation network architectures. **Professional Design Features** The distinctive purple OFNR-rated jacket serves dual purposes: easy visual identification for network management and riser-rated safety certification for installation in building cavities and cable trays. SC/UPC connectors in Type A to B crossover configuration represent industry-standard duplex patch cord polarity, ensuring seamless integration with existing infrastructure. The compact 1.8mm outer diameter facilitates installation in congested cable management systems without requiring excessive bend radius compensation. **Compliance & Certification** Full TAA compliance (Trade Agreements Act) makes this cable suitable for government and institutional procurement. RoHS/ELV certification and EU Directive 2002/95/EC compliance ensure environmental responsibility and future-proof technology standards. The 90-day limited warranty provides additional peace of mind for critical installations. **Applications** Ideal for data center interconnects, telecommunications backbone networks, fiber-to-the-premises installations, and enterprise campus networking. The 55-meter length accommodates medium-distance runs while custom lengths are available for specialized requirements. **Shipping & Support** Shipped from strategically located U.S. warehouses in California, Texas, and South Carolina, with free standard shipping on orders exceeding $99. Manufactured to exacting standards in Taiwan, the United States, and China.