The JBX43540 is a premium 0.5m ST/APC to FC/UPC simplex singlemode fiber patch cable engineered for critical network infrastructure applications. This cable combines precision engineering with compliance certifications to meet demanding telecommunications standards. **Technical Specifications:** Constructed with 9/125 singlemode glass fiber (G.657.A1 standard), this cable delivers exceptional optical performance. Testing confirms insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, meeting ANSI/TIA/EIA-455-171-A-2001 standards. Attenuation performance is 1310 nm: 0.25 dB/km or 1550 nm: 0.35 dB/km, ensuring minimal signal degradation over the fiber length. **Construction & Compliance:** The cable features a yellow riser-rated (OFNR) jacket with 1.8mm outside diameter, providing flexibility without sacrificing durability. TAA (Trade Agreements Act) compliant and RoHS/ELV certified per EU directive 2002/95/EC, this cable meets government and enterprise procurement requirements. The straight-through polarity ensures straightforward installation and connectivity. **Applications & Benefits:** Ideal for connecting fiber network equipment in data centers, telecommunications facilities, and enterprise installations, this simplex configuration supports directional signal transmission. The visible yellow jacket facilitates cable identification and management in complex network environments. **Customization & Shipping:** While this product comes in 0.5m length, custom lengths are available to meet specific installation requirements. Ships from multiple U.S. locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on qualifying orders. **Warranty & Support:** Backed by a 90-day limited warranty, this patch cable represents a reliable investment in network infrastructure. Choose the JBX43540 for professional-grade fiber connectivity with proven performance and compliance credentials.