Where is the fiber optic cable coming into the house from the router

The fiber optic cable enters your home at a wall outlet or NID, connects to an Optical Network Terminal (ONT), and then links to your router via an Ethernet cable.

Entry Point and ONT

The fiber optic line from your internet service provider (ISP) typically comes from a nearby pole or underground network box and enters your home through a fiber wall outlet or a Network Interface Device (NID) on the exterior of your house. Inside, the fiber connects to an Optical Network Terminal (ONT), which converts the light signals from the fiber into electrical signals that your home network can use.

The ON

T is usually installed near your electrical panel or in a central location for convenience and requires a dedicated power source. Connection to the RouterFrom the ONT, a high-speed Ethernet cable (often Cat6 or better) runs to your router or gateway. This Ethernet connection carries the converted data from the ONT to the router, which then distributes internet access to your devices via Wi-Fi or additional wired connections.

In some setups, your ISP may provide a combo device that integrates both the ONT and router, eliminating the need for a separate Ethernet link.

Internal Routing Considerations

Inside the home, the fiber cable should be routed carefully to avoid sharp bends, high-traffic areas, or extreme temperatures, as the glass fibers are delicate.

The ON

T is ideally placed near other networking hardware to minimize cable length and signal loss. If desired, the fiber can be extended to a media closet or network rack for a more centralized setup.

Summary

Fiber enters the home via a wall outlet or NID. Fiber connects to the ONT, which converts light signals to electrical signals. Ethernet cable runs from the ONT to the router, providing internet to your devices.

Optional: a combined ONT/router device may simplify the setup. This setup ensures that the high-speed fiber connection is efficiently converted and distributed throughout your home network, providing reliable internet access for all devices.