How long is the internal cable for full fibre? (installation options)

[boonjj]

Hi, I'm getting fibre installed and I have a question about the length of the internal cable and how close things need to be. I have included a picture to make the visual easier.

So: I would like to have the external box placed besiden my front door, on the front wall of my house (9 inch thick wall). Then I would like the internal box on the opposite side of this front wall. Then I would like the cabling run either 7 metres or 4 metres (depending on whether the box is installed at ground level or not, as if it is then the cable will be need to ran up and down the inside door) to reach the near double power socket.

Is this a viable set-up? I don't know how long the internal cable can be ran. Is having it run for 7 metres total around a door viable? Is having the nearest power socket be 7 metres inside the house okay?

Thanks for your help.

[licquorice]

Your question doesn't make sense. The 'internal box' as you call it is the ONT which requires power. Not sure what cable you are talking about.

[imjolly]

if the 'internal box' the ONT is placed as in diagram then you are going to have to run a power cable from the ONT to power outlet  the cable that comes with ONT will not reach

you are going to need to discuss siting of ONT with installer

[boonjj]

@imjolly 

I only placed the ONT there because I thought I read that the External and Internal box will be placed on the opposite side of the same wall.

If that is not the case, then the external box can remain where it is, and the cable will be run to the power socket and ONT which will now be beside each other. (if you look at the picture, just move the internal box to now be beside the power socket)

Does that set-up sound viable?

[licquorice]

As said, you will need to discuss it with the installer.

[36ULW]

Openreach use what’s called an Inside-Out Cable. They come in pre cut lengths of 5, 10, 20, 30 and 50m.

The outer sheathing can be striped back where it goes from the outside to inside.

When I did FTTP Installs there were two Installs Types, Basic and Premium.

On a Basic the Engineer can run up to 10m Internally and on a Premium 50m. 

That was a few years ago though, rules may have changed since. 

[pddco]

@boonjj  If you’re like me I try to think about options before being put on the spot when the installer arrives. Trouble is, unless you’re an installer you don’t really know what’s possible. All you have to go on is that the internal ONT  has to be powered, connected by fibre to external box and connected with an Ethernet cable to the hub. It has a I think about a 1m power lead. The cable from the External box (Customer Service - or is it Splicing? Point) CSP to the ONT is a a thin fibre cable. Which - from others here comes in various lengths. But before the installer arrives you don’t really know how far they would be prepared to run it. Anyway,  something to think about - fibre cable doesn’t like sharp bands. So going round a door frame with sharp 90 degree bends, like you do with copper, is not possible. The minimum bend radius from what I gathered on this forum is that of a £2 coin. So wouldn’t look very neat around a door. 
Of course the BT hub has to be connected to  the ONT with an Ethernet cable. Now being copper you can be far more flexible how and where the cable runs. And in practice can be any length from ONT to hub ( well in theory upto 100m but we’re talking a house situation here). The downside to the Ethernet is that the Installer is unlikely to play ball and you’d have to provide and route the cable yourself. Saying that, at least you could put a temporary cable in place ( a long Ethernet patch lead or whatever) just so the install gets done. And then get someone in to make a neater more permanent job?

Could the External box (CSP) be put somewhere else that would make your internal route / setup easier?  But at the same time still be straightforward ( least time/ trouble/  cost) for the OR external works? 

[iniltous]

No doubt there will be many thousands of FTTP installations every week , maybe thousands per day , and the vast majority  are completed  without any drama , there obviously will be some customers who are somewhat ‘precious’ about where the CSP is sited , not happy  about surface wiring  and have unrealistic expectations around a domestic installation entails as far as amount of cabling , unsuitable or ‘unsafe’ locations for the ONT etc .( an installation that  is usually a ‘free’ to the customer ….think of it as expecting a £10 ‘car wash’ to be the same standard as a £500 car detailing ) but most are satisfied and the customer and engineer both agree to the way the installation is completed.

The customer has the final say , if you can’t agree the way the installation can be done  in conjunction with the engineer , simply refuse …..the order is cancelled and everybody moves on .

[GarethPrice]

@boonjj  Worth bearing in mind that the ONT doesn’t have to be plugged directly into the power socket, but can run off a power extension block., which might be easier to route the cable alongside the bottom sill of the door, and if covered, would be more resilient than having the internal ONT cable routed that way

[chrisjp]

"The customer has the final say , if you can’t agree the way the installation can be done in conjunction with the engineer , simply refuse …..the order is cancelled and everybody moves on."

The trouble with that scenario is that BT will very likely go ahead and shut down your previous FTTC service anyway, because they'll assume that the FTTP installation has gone ahead. Communication between BT and Openreach is very patchy.
So, if you refuse the FTTP installation, you have a quite high risk of being without any broadband service at all, and facing a mammoth telephone session with BT trying to get it re-instated.