The JBX43549 ST/APC to FC/UPC singlemode fiber patch cable represents a professional-grade solution for demanding fiber optic networking environments. This 7-meter cable combines precision engineering with practical reliability, making it an excellent choice for organizations requiring high-performance signal transmission without compromise. **Key Technical Features:** Built on G.657.A1 glass fiber technology, this simplex cable features a 9/125 micron core specifically designed for singlemode applications. The cable achieves exceptional attenuation specifications: 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm, with insertion loss measured at ≤0.35dB (typical 0.15dB). Return loss performance of ≥20dB ensures minimal signal reflection and maximum data integrity. Attenuation testing follows ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing consistent quality across production batches. **Construction & Durability:** The cable features a robust 1.8mm outer diameter with OFNR (Optical Fiber, Nonconductive Riser Rated) jacketing, providing fire safety compliance for building installations. The distinctive yellow jacket facilitates easy identification and organization in multi-cable environments. Plastic accessory materials and RoHS/ELV directive compliance ensure environmental responsibility without sacrificing performance. **Professional Compliance:** TAA (Trade Agreements Act) compliance makes this cable suitable for government and institutional procurement requirements. The 90-day limited warranty demonstrates manufacturer confidence in product reliability. Available in custom lengths for specialized applications, this cable accommodates unique network topology requirements. **Ideal Applications:** Perfect for telecommunications networks, data centers, laboratory environments, medical imaging systems, and high-speed data transmission installations. The straight-through polarity configuration supports standard network architectures. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99, ensuring rapid deployment capability. **Value Proposition:** This cable eliminates common fiber connectivity issues through precision manufacturing and rigorous quality testing. The combination of low insertion loss, excellent return loss specifications, and TAA compliance provides enterprise-grade performance at competitive pricing. Whether upgrading legacy systems or building new installations, the JBX43549 delivers reliable signal integrity for mission-critical communications infrastructure.