While FiOS runs fiber optic cable to the home, the connection inside the home is run through standard cable TV coaxial cable.Click to see full answer. Similarly one may ask, what type of coaxial cable does FiOS use? Re: Answers about Fios Installation – Coax or CAT5 1) Coax is used to connect all the cable boxes, it is your choice as to what is used to connect the router. Most techs will use coax because it is usually already there and no extra wires need to be run.Beside above, does FiOS require new wiring? There is a need for any additional inside wiring and you prefer to have Verizon Technician do the installation. You have the option of having a contractor or someone handy run the inside wiring. Current Fios Equipment such as the Optical Network Terminal (ONT) not working or outdated. Similarly, you may ask, why does FiOS router have coax? If you have FiOS TV, that coax cable provides network access to your set-top boxes. Without it, they won’t get channel guides, on-demand programming, or firmware updates. They should still be able to tune to channels.How does Verizon FiOS connect to TV?Connect the coaxial cable from the FiOS TV wall outlet to the “RF IN” or “FiOS TV IN” input on the back of the STB. Plug one end of the STB power cord into the STB, then the other end into the power outlet. Connect the HDMI cable from the HDMI output on the back of the STB to the HDMI input on your TV.