In reply to a post by PaulKirby:

Oh I know its right and shared, I was just shocked that's all.

Yup. I've pointed out for a while that GPON fibre doesn't actually distribute more aggregate speed over, say, 2-3 streets than FTTC. It just allows one property to achieve a higher burst within the aggregate.

Could it be possible that G.Fast DPUs could achieve a higher density?

So after some mishaps here is a selection of FTTP bits and pieces ...


The first three photo's are of an FVA interstitial plate showing how the copper link from the ONTE terminates on the rear of it. Also the switch on top for switching between copper/fibre voice service.

Photo four is of an NTE and battery back up unit (they really need to work on those aesthetics don't they)

Photo's 5 to 9 show an MDU (multi dwelling unit) fibre DP. You can see the 2 fibre ruggedised leads which the builders have fitted between individual flats and the DP coiled up next to it.

In photo 7 you can see the completed splice at the top of the tray (it's glowing due to my light source being connected in the customers property) The somewhat OTT looking looping of the fibres going the tray is how the bend radius is kept to stop light leaking out .

Photo 10 is of my trusty splicer waiting to do its thang at a splitter node.

11 to 16 are various photo's of another splitter node. The red trays hold the spare incoming fibres (E-sides in a copper cab would sort of be a good analogy) The tray trays beneath holding the individual fibres going to the DP nodes.


Sadly Bob's mail people have lost the couple of pictures clearly showing the inside of a CSP with all the gubbins and the four fibre bundle I was originally alluding too. Me, being the OCD kid, had deleted them all from my phone once sent to Bob. Marvellous.

I shall try and get a replacement.

Thanks Zarjaz for the pictures.

So with the first 3 pictures of the new faceplate, I assume that the xDSL filter face plate gets removed and that this place is the only one that is connected to the NTE5A Master Socket back plate.

So if I wanted to speed up their job, I could install both the BT80 and the NTE5A back plate and wire those two and just leaving the engineer to move the copper line and install the fibre, and that would just leave me to connect the ONT to my HH (whatever I get given) then onto our LAN, and then also connecting the NTE5A new face plate to our existing phone extension.

Leaving the engineers time for a couple cups of Tea and Jammie Dodgers

In picture 4, when you say NTE don't you mean ONT that is next to the BBU?

I guess that pictures 5 to 9 are of a much larger version of the external one that I would get.

10 to 16, of the splitter node, I always wondered what the red wafers was for, also what are the 6 wafers above the red 4, are they for spare or just to protect the red wafer, and I guess the spare bottom 2 are also to protect the bottom of the 32 wafers.

When I first saw pictures 14 to 16, I first thought is that the new FibreDP, due to we have the old version of the FibreDP's installed in our areas.

I have a question, where about would the Splitter Node be placed, I would of thought very close to an area that it is covering, I know the route that our cable runs due to when they replaced all the cables back in July 2015, and I think there is more homes than the 120 to 128 that a splitter splits from the 4 that enters it, so does that mean we would be using either another splitter or would it be using the extra wafers the other side and have an extra cables feeding it?

Paul

Firstly, yes that should say ONTE ... and now I cannot edit it. [censored].

So if I wanted to speed up their job, I could install both the BT80 and the NTE5A back plate and wire those two and just leaving the engineer to move the copper line and install the fibre, and that would just leave me to connect the ONT to my HH (whatever I get given) then onto our LAN, and then also connecting the NTE5A new face plate to our existing phone extension.

What BT80 ?? I would suggest you wait for the installer and then ask them if you can help in any way when they are on site.

I guess that pictures 5 to 9 are of a much larger version of the external one that I would get.

They are of one form of fibre DP, 'you' won't be getting one, your service will go through one, but there won't be one in/on your property.

The splitter is where the splitter will be where sited by the planners. I suspect you are fretting unduly, capacity will be built into the scheme.

Look the kingfisher drive estate There are 3 splitter nodes here already, and an aggregation node nearby too ......

In reply to a post by Zarjaz:

Firstly, yes that should say ONTE ... and now I cannot edit it. [censored].

So if I wanted to speed up their job, I could install both the BT80 and the NTE5A back plate and wire those two and just leaving the engineer to move the copper line and install the fibre, and that would just leave me to connect the ONT to my HH (whatever I get given) then onto our LAN, and then also connecting the NTE5A new face plate to our existing phone extension.

What BT80 ?? I would suggest you wait for the installer and then ask them if you can help in any way when they are on site.

I was referring when it all goes live, when I phone up BT, I will be asking to have it placed upstairs at the front of the house right by where the line goes down the wall.

This is due to there is no power sockets anywhere near where the NTE5A Master Socket is located at the moment, also the fibre cable would have to travel through our living room around a door frame, through that wall into our hall.

Where as if it was upstairs at the front of the house in an empty room (to be where all the LAN stuff will go, eventually) where no extra fibre cable needed and there is plenty of power sockets available in that room, and from that room I have easy access to our LAN and also the existing Phone Extension.

So if BT says yeah that's fine, and when the engineers arrive I will let them know (i.e. remind then in case BT never told them) where I would like it located.

But yeah, there is no harm in just waiting and asking the engineers if I can help, I will probably do that.

In reply to a post by Zarjaz:

I guess that pictures 5 to 9 are of a much larger version of the external one that I would get.

They are of one form of fibre DP, 'you' won't be getting one, your service will go through one, but there won't be one in/on your property.

Ah, ok, they just looked like the wafer that you get in that external White/Brown/Grey Box that we will get installed on our outside wall which the fibre(s) get wrapped around before its spliced and enters our home.

In reply to a post by Zarjaz:

The splitter is where the splitter will be where sited by the planners. I suspect you are fretting unduly, capacity will be built into the scheme.

Look the kingfisher drive estate There are 3 splitter nodes here already, and an aggregation node nearby too ......

Ah, ok, that's good to know, well it needs to handle 400+ lines, so that would be about 4 splitters at least.

Paul

You can tell BT what you like, but be assured, the amount of times those notes ever get as far down the food chain as to be visible to the engineers is enormously rare.

9/10 most engineers are going to prefer a short external cable run to anything internal.

The white/grey/brown box is the CSP (customer splice point ) These are the photo's which have been misplaced/deleted/grown legs and walked
I'll get some when next I get an opportunity.

In reply to a post by Zarjaz:

You can tell BT what you like, but be assured, the amount of times those notes ever get as far down the food chain as to be visible to the engineers is enormously rare.

So it might be best to have BTOR to move both boxes to where we would like it before we even are able to order FTTP.

In reply to a post by Zarjaz:

9/10 most engineers are going to prefer a short external cable run to anything internal.

Well that sucks, so if that is the case, they better have time to keep repairing the fibre that they will have to install inside our home so that it can reach a power socket.
Which will be in the kitchen at the back of the house.

Whereas having it all upstairs at the front of the house would be the best location for everyone.

In reply to a post by Zarjaz:

The white/grey/brown box is the CSP (customer splice point ) These are the photo's which have been misplaced/deleted/grown legs and walked
I'll get some when next I get an opportunity.

Ok, thanks

Paul

In reply to a post by PaulKirby:

Thanks Zarjaz for the pictures.

Yup. Thanks.

In reply to a post by PaulKirby:

10 to 16, of the splitter node, I always wondered what the red wafers was for, also what are the 6 wafers above the red 4, are they for spare or just to protect the red wafer, and I guess the spare bottom 2 are also to protect the bottom of the 32 wafers.

Manual for the splitter node can be found here, with the tray layouts.
http://forums.thinkbroadband.com/fibre/4375161-fibre...

It looks like the top-left, thick tray holds the first splitter device, with space above and opposite for three more, when demand increases.

Below that, according to that version of the manual, is one tray for the splices onto the input fibres into the splitters. The next 5 trays store unused "d side fibre", which I think means the spare fibres out to the DPs.

Next would be the 4 red trays, which say they hold the output from the splitter devices (ie 32 fibres from each of the 4 devices). I guess these are the ones Zarjaz takes down into the next 32 when they're needed for splicing into live service, to be attached to one of the Dside fibres to the DP.

The bottom 2 trays are used for splicing fibres that are passing through. It isn't clear whether these are intended for passing on fibres to the next splitter node in a chain, or for passing on point-to-point fibres. Because each splitter node only requires a few fibres on the E-side, I imagine the former is more likely.

In reply to a post by PaulKirby:

I have a question, where about would the Splitter Node be placed, I would of thought very close to an area that it is covering, I know the route that our cable runs due to when they replaced all the cables back in July 2015, and I think there is more homes than the 120 to 128 that a splitter splits from the 4 that enters it, so does that mean we would be using either another splitter or would it be using the extra wafers the other side and have an extra cables feeding it?

I would imagine the same - that the splitters get located correctly for when demand is high, but deployed with only one quarter of the complete capacity, to reduce spending while demand is low.

Paul

I still think that it is 19.5Mb per customer as there are usually 2 sets of splitters and the total split over both is 128.

19.5Mb is plenty as the last figures I saw were quoting around 200Kb per customer on average at peak. We have to remember that browsing/ Mail/social media use very little, gaming a little over a consistent period, downloading tends to burst high but infrequently, only Streaming uses a lot consistently.

Now you and I know that there are a lot of low users in the average and FTTC users will be the top 10%. However 19.5Mb each is still high even when you take streaming into account. I guess that FTTx connections are more like 1Mb on average at peak but may be out by a factor of 2 ( I would be surprised if the average is above 2Mb).

Over 128 connections traffic theory starts to be effective and contention is unlikely for a few years especially as fewer than 128 are likely to be working for a significant amount of time.

40% penetrations are still unusual so that would only give 50 workers @ 50Mb each. As you get above 40% lower users start to appear and therefore a lower average bandwidth demand per live user.

When you get to the headend a higher risk of contention appears but spread over more customers as the backhaul will be spread across many FTTC Cabs and FTTP PONS and will be in multiple 1Gbs or a 10Gb.

It will be interesting over the olympics to see if anyone starts to report slow downs on FTTC and FTTP infrastructure ( Rather than backhaul.)

Well I am only going by what the Openreach doc says which is that it is split by 32, and that a user is only split once.

And going by what their docs shows, it shows that 4 strands gets spliced off passing through the rest, each of those 4 strands gets split 32 times creating 128 strands which then gets passed onto the FibreDP's etc, there is nothing about splitting it any more.

Saying that the splitter can split off 2 lots of 32, that meaning that instead of 4 strands entering the splitter there would be 8 strands.
This will probably be used in areas that have loads of lines.

Paul