The JBX42637 5m SC/APC to LC/UPC Duplex Singlemode Fiber Patch Cable represents the ideal solution for telecommunications professionals, data center operators, and network engineers requiring reliable, high-performance fiber connectivity. **Technical Excellence** This duplex patch cable features a 9/125 singlemode fiber core, the industry standard for long-distance, high-bandwidth applications. The G.657.A1 glass fiber specification ensures superior bending characteristics and reduced signal loss. With typical insertion loss of just 0.15dB and maximum attenuation of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm, this cable delivers exceptional signal integrity for demanding network environments. **Connector Configuration** The SC/APC (Angled Physical Contact) to LC/UPC (Ultra Physical Contact) configuration provides optimal connector versatility. SC/APC connectors offer excellent performance with minimal back reflection, while LC/UPC connectors are compact and widely used in modern network equipment. The Type A to B crossover polarity is standard for duplex patch cords, ensuring plug-and-play compatibility. **Durability and Compliance** Constructed with riser-rated (OFNR) jacketing, this cable meets strict fire safety standards for indoor vertical runs. The 1.8mm compact diameter facilitates easy installation in crowded cable trays and conduit. Full TAA compliance and RoHS/ELV certification make this cable suitable for government contracts and environmentally conscious installations. **Applications** Ideal for: telecommunications facilities, enterprise data centers, campus networks, and fiber-to-the-premises (FTTP) deployments. The 5-meter length provides flexibility for equipment separation while maintaining signal strength. Custom lengths are available for specialized installations. **Warranty and Support** Backed by a 90-day limited warranty. Ships from strategically located US warehouses (Danville CA, Fort Worth TX, Beaufort SC) ensuring fast delivery with free standard shipping on orders exceeding $99. The cable meets ANSI/TIA/EIA-455-171-A-2001 attenuation testing standards, guaranteeing performance reliability.