This topic

Fibre Termination OTP ETC

MerCrocus — Mon, 17 Nov 2025 04:24:55 GMT

Hi, on Sky FTTC now and looking to move to BT Full Fibre 300.

I want to run FTTP direct into the same location as my master socket currently, on the second floor.

Will BT do this? Or will they only terminate in the easiest entry point. How do I check this before I commit.

Lastly is the RJ45 connection in the OTP love internet or does BT need their device connecting out of that for a form of handshake.

Re: Fibre Termination OTP ETC

pippincp — Mon, 17 Nov 2025 08:27:41 GMT

BT won't do anything, it will be Openreach of one of it's contracctors. It depends on the engineer on the day. A contractor probibly won't as they want to get the job done quickly and will pick the shortest route, but you never know.

Yes there's an RJ$% connection from the ONT to router. NOTE if you are getting digital voice you bust use the BT hub.

Re: Fibre Termination OTP ETC

WSH — Mon, 17 Nov 2025 09:29:52 GMT

Not sure if it helps you any, but the cat 5e/6 cable run between the ONT and the hub can be up to 100m.

The ONT (Optical Network Terminal) also needs power, so it will have to be within 1.5m of a power point, (or an extension lead).

The ONT is essentially a modem. Theoretically you could connect a computer directly to it but it is more usual to connect your network to it via a router. If you are taking the digital voice phone service, that will have to be the BT router, as it is a proprietary form of VoIP. (As is Sky's phone service). It is possible to connect the BT router followed by a router of your own to act as the gateway to your network. Lots of posts on here about how to do that.

Re: Fibre Termination OTP ETC

iniltous — Mon, 17 Nov 2025 09:09:52 GMT

What you should be asking yourself is what you want practical and not overly time consuming…you say second floor is that the American way of floor counting so is actually the first floor , or the British way so it’s two levels above the ground , for example the top floor of 3 stories high property and what does ‘directly’ mean to you , internal cabling to the ONT is surface mounted, so on skirting boards and around door frames etc…no going under floors or behind walls , if you feel the likelihood is your requirements won’t be met, don’t order , that will just waste everyone’s time including your own.

There is no mechanism for you to get a visit so you can decide whether to proceed or not , however if you order and can’t agree the location of the ONT you refuse the installation and you should remain on the existing service for the time being .

Re: Fibre Termination OTP ETC

chrisjp — Mon, 17 Nov 2025 11:03:15 GMT

"There is no mechanism for you to get a visit so you can decide whether to proceed or not , however if you order and can’t agree the location of the ONT you refuse the installation and you should remain on the existing service for the time being."

All true, except that there have been postings on this forum of people on the day refusing a full fibre installation because the contractor would not put the ONT where they wanted it, and then finding that BT has turned off their existing fibre to the cabinet service, because they assumed that Openreach had completed the fibre to the premises installation.
Communication between BT and Openreach can be very poor on occasions.
So beware!

Re: Fibre Termination OTP ETC

iniltous — Mon, 17 Nov 2025 11:24:35 GMT

That’s why I said ‘should’ remain on the existing service, obviously there is the potential to be without both the new service and old service, but that would need an error to occur, if the process is followed correctly , the installation being abandoned should not result in the existing service being terminated …

In this case it’s impossible for BT to turn off the customers Sky FTTC service if the OP declined to allow the FTTP service to be installed , that’s a physical impossibility, BT (and Openreach for that matter ) don’t advise Sky if the FTTP service is installed or not installed , that is a message within the OTS service, plus my point is , the OP shouldn’t even raise an order if the what they require from a FTTP installation isn’t ‘ reasonable’ and although that’s subjective term to a certain extent, why would an installer refuse a reasonable request .

There are occasions where customers do lose the existing service being terminated, in those cases there has never been evidence provided that it was ‘BT’ at error , simply unfounded opinions

Re: Fibre Termination OTP ETC

MerCrocus — Mon, 17 Nov 2025 18:17:08 GMT

Thanks to everyone that replied.

Not intending to use BT Voice, ideally I want to just use the RJ45 into my own router / security appliance. I just wasn't sure if the OTP was a modem or it had to be he BT router.

On the cabling. So my guess is they will want to run up the outside then into the room. Or run on surface as opposed to pull through which is frustrating.

On copper I had the master socket moved to this room and I hoped Openreach would pull hru to same location

It feels like I'm going to have to have the OTP in a random location in the hallway then own cat6 cabling

Re: Fibre Termination OTP ETC

pippincp — Mon, 17 Nov 2025 19:04:33 GMT

You can provide your own cabling (ethernet) internally. Why do you call it an OTP when the correct trminoligy has been pointed out to you?

Re: Fibre Termination OTP ETC

WSH — Mon, 17 Nov 2025 19:18:48 GMT

I vaguely recall seeing it referred to as an Optical Termination Point once before, but I also seem to recall it wasn't in this country.

Re: Fibre Termination OTP ETC

MerCrocus — Tue, 18 Nov 2025 07:06:23 GMT

Apologies @pippincp I'm new here and just seeking help on the fly. ONT I believe you said instead, and yes by BT I meant Openreach as I'd be a BT customer

I'll try to get the terminology correct. Case in point tho I'm just trying to understand two things.

1. If I can not use the BT router and use my own appliance.

(I'm not intending to have a landline number thru them which I assume is digital voice, again I'm new and don't know exact terminology for what I wound have called a landline in the past regardless not after that purely internet)

2. If I can terminate the Fibre in the room that the hub of my house the same way as a master socket on FTTC would have been.

It appears from the varying answers on here that for

#1 I don't need BT router, I can use my own (if don't need voice)

#2. Openreach won't do what I need, unless they cable up side of the house or surface cable upstairs a floor (both ugly) thus for 1 I'm going to need an ugly termination (excuse specific terminology) in the hallway by front door then internal private Cat6 up to the hub room to achieve the outcome.

Do that all sound correct

Re: Fibre Termination OTP ETC

licquorice — Tue, 18 Nov 2025 08:06:27 GMT

If you don't need Digital Voice you can use any router you like that supports PPPoE

Nobody here can predict what Openreach or one of its contractors is prepared to do at any individual property on any given day.

Re: Fibre Termination OTP ETC

iniltous — Tue, 18 Nov 2025 09:49:25 GMT

TBH , there is still some information that’s unknown, is your current service underground or overhead, if underground and the cable isn’t going to enter inside immediately it appears from underground then some cable on wall (visible) is unavoidable, and if the entry point is on the first floor or second floor (for example) then it can be visually unappealing…overhead service can on occasion be taken inside at the higher floor level , but it’s more common to run down a wall to a low level and an external block (CSP) fitted and a second cable ran up the wall if the ONT is required upstairs, however there are examples of internal CSPs fitted , with the external overhead cable entering at a higher floor level avoiding most of the visible cabling …but as stated , this can’t be predicted, to a large extent it’s the engineer on the day that has the final say , but as a rule of thumb, it has to be safe (no unnecessary work on a ladder ) and won’t take ‘forever’ to accomplish , like excessive internal cable runs .
As stated , if you know that your requirements are likely to be unacceptable to the installer and what can be offered won’t be acceptable to you ….don't order.

FYI , there are different levels of installation offered to ISP’s from Openreach , but as most ISP offer the consumer a free installation that’s the shortest duration option one , if you are prepared to pay your ISP something towards the installation cost (so you ask for an advanced installation and they order that from OR ) the increased amount of time that can be spent , with a commensurate increase in allowed cable runs lengths etc may work as some of the time constraints are removed

Re: Fibre Termination OTP ETC

MerCrocus — Fri, 21 Nov 2025 19:11:40 GMT

Thanks super appreciated.

The router bit is a big help, that's one off the list.

Re termination he extended instal may well be the ticket, thank you.

I get people's point on if unsure don't order - however I just wanted to get more sure on what happens hence I came here so it's just closing the delta. OR ran my master up a floor last time and that was due to a cool engineer, I just didn't know if Fibre was the same vibe which appears it is.

If I can book an advanced / extended install, and try to get as I need directly up the fall back the is to terminate in hallway as they wish and I'd run a new internal CAT6 up to the room that's the hub. Feels like the only option

Appreciated