Openreach FTTP ONT: Difference between revisions
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__NOTOC__<indicator name="Routers">[[File:menu-router.svg|link=:Category:Routers|30px|Back up to the Routers Category]]</indicator> |
__NOTOC__<indicator name="Routers">[[File:menu-router.svg|link=:Category:Routers|30px|Back up to the Routers Category]]</indicator> |
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[[Category:FTTP Faults]] |
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[[Category:Routers]] |
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[[File:Fttp-ont-pon.jpg|thumb|(Newer) Openreach single port ONT - Lights show all good]] |
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This page is about the FTTP termination device that Openreach install for FTTP customers. |
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[[File:Older_ONT.png|thumb|(Older) Openreach ONT - Lights show all good]] |
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[[File:ONT-side.jpg|thumb|(Older) Openreach ONT, powered off!]] |
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[[File:Nte-ok.jpg|thumb|(Older) Openreach ONT, powered on and working OK]] |
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[[File:ONT-opened.jpg|thumb|(Older) Openreach ONT, cover removed. Customer router connects to yellow socket]] |
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This page is about the FTTP termination device that Openreach install for FTTP customers. ONT stands for Optical Network Terminal, sometimes (mistakenly) called an openreach modem. CityFibre use a different ONT - we have a separate page on that: [[CityFibre ONT]] |
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=LED Status= |
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=Summary:= |
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* In short, the ONT in installed inside the customer's premises by Openreach and converts the fibre connection from the outside world in to a RJ45 port which you plug in to your router with a CAT5 cable. |
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* The ONT requires power, and a UPS is recommended, see our [[VoIP_Power]] page for suggestions. |
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Openreach provide an ONT for use with FTTP services. - so when you order a BT-based FTTP service from A&A, an Openreach engineer will install the little ONT unit in your premises. You then connect your Ethernet router to it and set your router with the A&A PPP credentials to log in. |
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This page is about diagnosing problems with the Openreach ONT. |
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* A working Openreach unit has '''green: power, PON & LAN''' lights, anything else indicates a problem. |
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* Your PPPoE capable router will plug in to the LAN port and connect you to the internet. |
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=More info= |
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* Newer ONT installs do not include a Battery Backup Unit (BBU) See: [[999_and_faults]] |
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* Where provided, the battery has a short warranty, and should be maintained by the end user, however, the battery is to keep the unit powered so that the TEL ports can be used during a power outage - we don't use the TEL ports, so you will want to make other arrangements for using a phone during a power outage - eg a mobile phone. See: [[999_and_faults]] |
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* At least newly installed BT ONTs support Baby Jumbo frames (see [[MTU]]) |
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== Openreach ONT LED Status == |
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{| class="wikitable" |
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! LED !! Colour !! Meaning !! Notes |
! LED !! Colour !! Meaning !! Notes |
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! colspan=4 | Top (ONT) LEDs |
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| '''TEL1''' || Off || || We don't use the Tel ports |
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|rowspan= |
| rowspan=2 | '''PORT1''' or '''LAN''' || Blinking/Flashing green || Data being transmitted || '''Good''' |
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| Off || ONT has no ethernet link to the router || '''Bad'''. Check the connection/cable to the router |
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| rowspan=3 | '''LOS''' (Loss of service)<br><br>'''PON''' (Passive Optical Network) || PON solid green, LOS off || Connected and should be working || '''Good'''. This is how it should be normally |
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| 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... |
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| PON off, LOS solid red || Possible fault with the fibre || '''Bad'''. Check fibre not damaged, reconnect fibre, power cycle ONT |
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|rowspan= |
| rowspan=2 | '''POWER''' || Solid green || Device has power || '''Good''' |
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| Off || Power is off || '''Bad'''. Check mains power and connection to BBU/ONT |
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| blinking/flashing || data being transmitted || '''Good''' |
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! colspan=6 | Bottom right (BBU) LEDs |
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| '''Tel''' || || || We don't use the Tel ports |
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|'''Status/Fault/Charging''' || Related to the battery backup || || |
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| Off || || |
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| rowspan=2 | '''FAULT''' || Solid red || Battery fault || '''Bad'''. Replace the AA batteries inside |
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| Off || || '''Good'''. No fault |
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| rowspan=2 | '''CHARGING''' || Solid orange || Batteries are not fully charged || '''Wait'''; the batteries are charging (usually after a power cut) |
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| Off || Batteries are not being charged || '''Good'''. The batteries are fully charged |
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== External links == |
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LOS = Loss of service. |
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* [https://www.openreach.com/content/dam/openreach/openreach-dam-files/images/news-and-opinion/articles/2018/02/ONT%20Factsheet.pdf 1+1 ONT and Enclosure Factsheet] |
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PON = Passive Optical Network |
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=Outdoor Junction box= |
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[[File:CF-BT-Outside-spice-boxes.jpg|thumb|alt=CityFibre and Openreach outdoor Junction box|Outdoor Junction Box]] |
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Openreach will usually install a junction box on the outside of the property. This connects up the fibre from the street to the fibre that goes inside the property. |
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This is a passive device, doesn't require power, and is just used to connect the two fibres together. The photo shows both a Brown CityFibre unit and a Grey Openreach unit. |
Latest revision as of 11:16, 4 Haziran 2024
This page is about the FTTP termination device that Openreach install for FTTP customers. ONT stands for Optical Network Terminal, sometimes (mistakenly) called an openreach modem. CityFibre use a different ONT - we have a separate page on that: CityFibre ONT
Summary:
- In short, the ONT in installed inside the customer's premises by Openreach and converts the fibre connection from the outside world in to a RJ45 port which you plug in to your router with a CAT5 cable.
- The ONT requires power, and a UPS is recommended, see our VoIP_Power page for suggestions.
Openreach provide an ONT for use with FTTP services. - so when you order a BT-based FTTP service from A&A, an Openreach engineer will install the little ONT unit in your premises. You then connect your Ethernet router to it and set your router with the A&A PPP credentials to log in.
This page is about diagnosing problems with the Openreach ONT.
- A working Openreach unit has green: power, PON & LAN lights, anything else indicates a problem.
- Your PPPoE capable router will plug in to the LAN port and connect you to the internet.
More info
- Newer ONT installs do not include a Battery Backup Unit (BBU) See: 999_and_faults
- 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.
- The ONT requires power, so will need a mains power socket nearby.
- Where provided, the battery has a short warranty, and should be maintained by the end user, however, the battery is to keep the unit powered so that the TEL ports can be used during a power outage - we don't use the TEL ports, so you will want to make other arrangements for using a phone during a power outage - eg a mobile phone. See: 999_and_faults
- At least newly installed BT ONTs support Baby Jumbo frames (see MTU)
Openreach ONT LED Status
LED | Colour | Meaning | Notes | ||
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Top (ONT) LEDs | |||||
TEL1 | Off | We don't use the Tel ports | |||
PORT1 or LAN | 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
Outdoor Junction box
Openreach will usually install a junction box on the outside of the property. This connects up the fibre from the street to the fibre that goes inside the property.
This is a passive device, doesn't require power, and is just used to connect the two fibres together. The photo shows both a Brown CityFibre unit and a Grey Openreach unit.