Openreach FTTP ONT: Difference between revisions

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[[File:ont.png|thumb|Openreach ONT with BBU in enclosure]]
[[File:ont.png|thumb|Openreach ONT, powered off!]]
[[File:Nte-ok.jpg|thumb|Openreach ONT, powered on and working OK]]




This page is about the FTTP termination device that Openreach install for FTTP customers.
This page is about the FTTP termination device that Openreach install for FTTP customers.

Revision as of 11:10, 11 November 2021


Openreach ONT, powered off!
Openreach ONT, powered on and working OK


This page is about the FTTP termination device that Openreach install for FTTP customers.

Older Openreach ONT (Optical Network Termination) such as the one pictured, is actually inside the enclosure. This also contains a Battery Backup Unit (BBU) along with various wiring and cable management.

Newer ONT installs do not include the BBU, and are also not in a larger enclosure.

The ONT requires power, so will need a mains power socket nearby.

LED Status

Openreach ONT LED Status
LED Colour Meaning Notes
Top (ONT) LEDs
TEL1 Off We don't use the Tel ports
PORT1 Blinking/Flashing green Data being transmitted Good
Off ONT has no ethernet link to the router Bad. Check the connection/cable to the router
LOS (Loss of service)

PON (Passive Optical Network)
PON solid 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 solid red Possible fault with the fibre Bad. Check fibre not damaged, reconnect fibre, power cycle ONT
POWER Solid green Device has power Good
Off Power is off Bad. Check mains power and connection to BBU/ONT
Bottom right (BBU) LEDs
STATUS Solid green Good
Off
FAULT Solid red Battery fault Bad. Replace the AA batteries inside
Off Good. No fault
CHARGING Solid orange Batteries are not fully charged Wait; the batteries are charging (usually after a power cut)
Off Batteries are not being charged Good. The batteries are fully charged

External links