Rewiring your home is generally not necessary for fiber optic internet installation. Fiber optic service usually connects to an Optical Network Terminal (ONT) at your home, and from there, the signal can be distributed using your existing wiring, such as coaxial or Ethernet cables. I've never researched or came into contact with fiber, so one of my first questions are : Do fiber optic connections use different modems than cable? Are. Do You Actually Need to Rewire for Fiber Optic? The Direct Answer The direct answer to whether you need to rewire your house for fiber optic internet is: usually not for the fiber line itself, but potentially for your internal network distribution. In many cases. A fiber media converter, also known as a fiber to Ethernet converter, allows you to convert typical copper Ethernet cable (e., Cat 6a) to fiber and back again. The typical use case for this is to either extend the transmission distance or to segment your network, protecting it from electrical. To connect your fiber optic cable to a router, ensure you have the following: Fiber optic modem (ONT): Most fiber connections require an Optical Network Terminal (ONT), provided by your ISP.