Tidying POE splitter supply to FTTP ONT.

Pancho · 2026-07-20T11:32:04+00:00

I have just replaced my old copper BT connection with FTTP. The old BT master socket was by the front door. There is an ethernet cable from this to my router upstairs. Previously, the ethernet cable was just used as an extension to the telephone copper pair, but it is good ethernet cable, all neatly channelled into the plaster wall, going into a shared backbox with the BT telephone cable.So I got the ONT installed at the old master socket, and used the existing ethernet to connect to my router upstairs.The problem is I don't have a power socket near the ONT, so I power it by an active POE splitter.The problem is the POE splitter is too big to hide in the existing backbox. I did think of putting in a double gang backbox, but the fibre optic cable looks very fragile, and I don't want to work around it.So the question is how to smarten up/hide the POE splitter?I could possibly squeeze a passive POE splitter into the existing back box. I'm not sure if it will fit, and I would prefer to use active POE.Maybe some kind of plastic box under the ONT to hide the active splitter?Has anyone had a similar dilema?

Jul 20, 2026 Last reply: 2 months ago 22 Replies

Rate this thread:

Saved reading

John Rumm 2 months ago

Yup I have used similar solutions to tidy up the ONT end of things where the installer plonked it next to the POTS phone service sockets.

Cheers, John. /=================================================================\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \=================================================================/

Vote

John Rumm 2 months ago

SFP sockets are quite common on network switches, so using a GPON SFP in one of those would be an alternative option.

Vote

John Rumm 2 months ago

Keep in mind that BT and openreach are supposed to have an "arms length" relationship. So the supplier of the ONT should not have or require any special relationship with the ISP, even when the ISP is part of the same empire.

Vote