The specific requirements for routing fiber optic cabling in underfloor environments. Why it matters: Fiber is more sensitive to bend radius, crush forces, and directional changes than copper cabling. (FOA) was founded in 1995 to help develop the workforce to build the fiber optic networks to support a rapid expansion in communications and the Internet. Kuhlman says that the entry can be extended by completely enclosing the fiber in IMC or RMC. Running fiber internally involves extending this high-speed link from the service entry point to a centralized location, such as a dedicated media closet or. In this article, we'll walk you through the step-by-step process of drilling a hole in the floor for cables. Whether you're a seasoned DIY enthusiast or a homeowner looking for a quick fix, this guide will provide you with the knowledge and confidence to tackle the job on your own. 2 meters (3-4 feet) deep to reduce the likelihood of accidentally being dug up.