The JBX43375 20-meter SC/APC to ST/UPC simplex singlemode fiber patch cable represents professional-grade connectivity for modern optical networks. Engineered with precision components and rigorous quality standards, this cable delivers reliable fiber optic signal transmission across telecommunications, data center, and enterprise network infrastructures. **Key Technical Specifications:** Constructed with 9/125 singlemode fiber and G.657.A1 glass fiber technology, this cable supports both 1310nm and 1550nm wavelengths essential for long-distance telecommunications. The SC/APC (SC Angled Physical Contact) connector on one end interfaces with ST/UPC (Straight Tip/Ultra Physical Contact) on the opposite end, enabling connection between diverse network equipment while maintaining straight-through polarity. With insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, this cable ensures minimal signal degradation across the 20-meter span. **Construction & Durability:** The cable features a yellow OFNR (Optical Fiber Non-conductive Riser) rated jacket, providing fire resistance suitable for building plenum installations and riser applications. The 1.8mm outside diameter offers practical flexibility for cable routing while maintaining structural integrity. Manufactured across multiple regions (Taiwan, USA, China) with consistent quality control, this cable undergoes attenuation testing per ANSI/TIA/EIA-455-171-A-2001 standards. **Compliance & Certification:** TAA (Trade Agreements Act) compliant, making it eligible for government and federal procurement programs. Full RoHS/ELV (Rohs Directive 2002/95/EC) compliance ensures environmental responsibility. The cable includes a 90-day limited warranty, with free standard shipping available on orders exceeding $99. **Applications & Use Cases:** Ideal for telecommunications facilities, data centers, network backbone installations, and enterprise LAN environments requiring reliable singlemode connectivity. The simplex configuration suits point-to-point signal transmission applications. Custom lengths are available for specialized installation requirements beyond the standard 20-meter specification. **Why Choose This Cable:** With tested insertion loss performance, TAA compliance, and riser-rated construction, this cable meets rigorous professional networking standards while remaining cost-effective for large-scale deployments.