The JBX42632 SC/APC to LC/UPC duplex singlemode fiber patch cable represents professional-grade connectivity for modern network infrastructure. This 1.5-meter solution combines superior optical performance with practical design features that make it ideal for telecommunications, data center environments, and enterprise network deployments. **Optical Performance & Specifications:** Built on a 9/125 singlemode fiber core with G.657.A1 glass composition, this cable delivers industry-leading optical characteristics. The insertion loss specification of ≤0.35dB (typical 0.15dB) ensures minimal signal degradation, while return loss exceeding 20dB provides exceptional reflection control. Supporting dual-wavelength operation at 1310nm and 1550nm, the cable maintains performance across diverse network configurations with attenuation rates of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm. **Connector Technology:** The SC/APC to LC/UPC connector configuration provides Type A to B crossover polarity—the industry standard for duplex patch cord applications. This combination maximizes compatibility with existing network equipment while maintaining optimal optical alignment and connection reliability. **Construction & Durability:** The cable features a protective 1.8mm outside diameter jacket with OFNR (riser-rated) rating, meeting critical fire safety standards for building installations. The distinctive yellow jacket improves visibility during installation and maintenance, reducing the risk of accidental disconnection or damage. Manufactured to meet ANSI/TIA/EIA-455-171-A-2001 standards, every unit undergoes rigorous attenuation testing. **Compliance & Certification:** TAA (Trade Agreements Act) compliant manufacturing ensures suitability for government and institutional procurement. RoHS/ELV compliance demonstrates environmental responsibility, while the 90-day limited warranty provides peace of mind. Production facilities in Taiwan, US, and China ensure consistent quality and availability. **Flexibility & Convenience:** Custom length options accommodate unique installation requirements beyond the standard 1.5-meter configuration. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99, ensuring quick delivery and reduced costs for bulk purchases. **Applications:** Ideal for connecting SC/APC-equipped fiber optic equipment to LC/UPC-terminated systems, this cable serves telecommunications networks, DWDM systems, metro area networks, and high-speed data transmission infrastructure where signal integrity is paramount.