Compatible router: Verify that your router supports fiber optic input (look for an SFP or WAN port labeled "ONT" or "Fiber"). Fiber optic cable: Typically a thin, yellow cable with specialized connectors (SC/APC or SC/UPC). Ethernet cable: To link the ONT/modem to the. 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. This comprehensive guide combines industry standards with field-tested practices to ensure you achieve a rock-solid. If you are a fibre customer, it's likely you'll have an Openreach modem (or ONT) installed. The ONT is a core part of the infrastructure, not an optional add-on.
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