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How Does an ONT Connect to a Router?

Published in Network Setup 2 mins read

An ONT (Optical Network Terminal) connects to a router using an Ethernet cable. The ONT receives the fiber optic signal from your internet service provider (ISP) and converts it into a signal your router understands.

Understanding the Connection Process

The process is straightforward:

  1. Fiber Optic Cable: The fiber optic cable from your ISP connects directly to the ONT. This cable carries the high-speed internet signal.
  2. Ethernet Cable: An Ethernet cable connects the ONT to your router's WAN (Wide Area Network) port. This cable transmits the converted data signal from the ONT to the router.
  3. Router: Your router then distributes the internet connection to your devices via Wi-Fi or additional Ethernet connections.

Example: Your ISP installs an ONT on your wall. You then connect an Ethernet cable from the ONT's Ethernet port to the WAN port of your router. Your devices then connect to your router via Wi-Fi or Ethernet to access the internet.

Common Misconceptions & Clarifications

  • Direct Connection: While the ONT connects directly to the fiber optic cable, it's crucial to understand that it does not directly connect to your devices. The router acts as an intermediary.
  • Coax Cable: Some older setups might involve coax cables, but modern fiber optic internet installations typically use Ethernet cables to connect the ONT to the router.
  • ONT vs. Modem: The ONT is the fiber optic equivalent of a cable modem; it converts the optical signal to an electrical signal your router can use.

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