Connect LC-terminated optical interfaces across a 20 m single-mode run with a duplex cable that keeps the two fiber paths together. OS2 9/125 µm fiber supports standard single-mode infrastructure, while LC connectors on both ends mate with LC ports, patch panels, and optical transceiver interfaces. The black-jacket cable suits in-rack and cross-rack patching where a fixed 20 m reach is required between LC endpoints. Duplex construction keeps transmit and receive fibers paired in one assembly, simplifying route identification compared with two separate simplex leads. Select single-mode patching throughout the link; connector type, fiber class, and length must align with the installed optical path. Axiom Memory AXG94687K combines LC-to-LC termination, OS2 single-mode construction, and a 20 m cable length in a black duplex assembly. It is TAA compliant, making that requirement explicit for deployments that call for a TAA-compliant fiber cable. This configuration uses LC connectors at both ends for direct connection between compatible LC optical interfaces.