Openreach FTTP ONT
This page is about the FTTP termination device that Openreach install for FTTP customers.
The Openreach ONT is actually inside an enclosure which also contains a Battery Backup Unit (BBU) and various wiring.
The ONT requires power, so will need a mains power socket nearby.
LED Status
| LED | Colour | Meaning | Notes |
|---|---|---|---|
| Power | Green | Device has power | Good |
| Off | Power is off | Bad. Check mains power | |
| PON & LOS (Passive Optical Network Loss of service) |
PON green, LOS Off | Connected and should be working | Good. This is how it should be normally |
| PON flashing green, LOS off | ONT is starting up | Wait a bit for steady green and all should be well... | |
| PON off, LOS red | Possible fault with the fibre | Bad. Check fibre not damaged, reconnect fibre, power cycle ONT | |
| PORT1 | Off | ONT has not ethernet link to the router | Bad. Check the connection/cable to the router |
| Blinking/Flashing | Data being transmitted | Good | |
| Tel | We don't use the Tel ports | ||
| Status/Fault/Charging | Related to the battery backup | The 'fault' LED indicated a fault with the battery, and not related to a fault with the FTTP service. |