Openreach FTTP ONT: Difference between revisions

Back up to the Routers Category
From AAISP Support Site
(more wording improvements)
(→‎LED Status: Make rows match order of LEDs)
Line 18: Line 18:
! LED !! Colour !! Meaning !! Notes
! LED !! Colour !! Meaning !! Notes
|-
|-
|rowspan="2"| '''Power''' || Green || Device has power || '''Good'''
| '''TEL1''' || || || We don't use the Tel ports
|-
|-
| Off || Power is off || '''Bad'''. Check mains power
|rowspan="2"| '''PORT1''' || Off || ONT has not ethernet link to the router || '''Bad'''. Check the connection/cable to the router
|-
|-
| Blinking/Flashing || Data being transmitted || '''Good'''
|rowspan="3"| '''PON & LOS''' <br>(Passive Optical Network <br> Loss of service)|| PON green, LOS Off || Connected and should be working || '''Good'''. This is how it should be normally
|-
|rowspan="3"| '''LOS''' (Loss of service)<br>'''PON''' (Passive Optical Network) || 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 flashing green, LOS off || ONT is starting up || '''Wait''' a bit for steady green and all should be well...
Line 28: Line 30:
| PON off, LOS red || Possible fault with the fibre || '''Bad'''. Check fibre not damaged, reconnect fibre, power cycle ONT
| PON off, LOS red || Possible fault with the fibre || '''Bad'''. Check fibre not damaged, reconnect fibre, power cycle ONT
|-
|-
|rowspan="2"| '''PORT1''' || Off || ONT has not ethernet link to the router || '''Bad'''. Check the connection/cable to the router
|rowspan="2"| '''Power''' || Green || Device has power || '''Good'''
|-
|-
| Blinking/Flashing || Data being transmitted || '''Good'''
| Off || Power is off || '''Bad'''. Check mains power
|-
| '''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.
|'''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.

Revision as of 01:23, 11 November 2021


Openreach ONT with BBU in enclosure

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 - Main LEDs at the top
LED Colour Meaning Notes
TEL1 We don't use the Tel ports
PORT1 Off ONT has not ethernet link to the router Bad. Check the connection/cable to the router
Blinking/Flashing Data being transmitted Good
LOS (Loss of service)
PON (Passive Optical Network)
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
Power Green Device has power Good
Off Power is off Bad. Check mains power
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.