What do the ONT LED lights mean?
1. Power OFF — The ONT has no power supply. Check the mains connection is plugged in and switched on.
2. Power Green — The ONT is powered on.
3. LOS — OFF and PON — ON — Broadband service is connected to the exchange and the line is clear.
LOS = Loss of Signal. PON = Passive Optical Network
4. LOS — OFF and PON — Flashing Green — Establishing link to the Exchange. When connected PON will turn solid Green.
LOS = Loss of Signal. PON = Passive Optical Network
5. LOS — RED and PON — RED — Optical link not establish or possible fault. Check the optical cable is connected and not damaged. Turn the ONT off and back on again.
LOS = Loss of Signal. PON = Passive Optical Network
6. LOS — Flickering Red — There is Data Loss. Turn the ONT off and back on again.
LOS = Loss of Signal.
7. LAN — OFF — No Ethernet cable is connected or recognised.
LAN = Local Area Network
8. LAN — Green — Ethernet cable is connected.
LAN = Local Area Network
9. LAN — Flickering Green — Data is being transferred via Ethernet.
LAN = Local Area Network