Fiber optic cables carry data as pulses of light through hair-thin strands of glass or plastic. There is no physical or electrical compatibility between the two. The Key Insight: Your normal router is not connected directly to the fiber line. In fact, the overwhelming majority of fiber internet customers around the world do exactly that — they keep using a standard Wi-Fi router they already own. Fiber optic internet delivers blazing-fast speeds and reliable connectivity, making it a top choice for modern homes and businesses. However, setting up a fiber optic connection to your router can seem daunting if you're unfamiliar with the process. The fiber line terminates at the Optical Network Terminal (ONT), which is typically supplied and installed by the internet service provider. This specialized equipment serves as the. A fiber-optic connection is the best choice for fast home internet as it has a number of advantages compared to traditional copper cables, such as faster speeds and less interference. Run an Ethernet cable from the ONT to the WAN port on your.