In this video, we explain how to lay 4 core optical fiber cable (OFC) step by step. This tutorial is helpful for beginners and professionals working in networking, telecom, and fiber optic. Summary : Define the route, select the appropriate type of fiber (single-mode or multimode) following the standards that may apply such as TIA/EIA or NEC. Single-mode fiber is being viewed as the backbone of enterprise connections, and it is used to facilitate all 400G solutions and real-time AI solutions/applications, due to its ability to transmit data over long distances with minimal signal loss. Each fiber is capable of independent data transmission. Since most network hardware uses a "Duplex" system (requiring two fibers: one to Transmit and one to Receive). In this comprehensive guide, we'll walk through the best practices for installing various types of fiber optic cable, from patch cords to distribution fiber, and provide practical tips to ensure a successful installation.