The fiber optic cable does not plug directly into a standard home router because the signal type must be translated. The fiber line terminates at the Optical Network Terminal (ONT), which is typically supplied and installed by the internet service provider. The ONT is linked to your router or gateway using an Ethernet cable. * For larger homes, mesh. Typically installed underground or in above-ground boxes, they work by: These pods are strategically placed to minimize digging and speed up installation. Methods include: Underground ducting: Micro-ducts placed using. Main Trunk Line Installation: A high-capacity fiber optic cable (the "backbone") is laid from the ISP's central office or a nearby point of presence to the general vicinity of the neighborhood.