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[Reformed]

Tons of G.fast has been overbuilt with FTTP now. The big evidence it's not being pursued might well be that 9 months ago Openreach passed 2.831 million premises with G.fast and as of this month passed 2.831 million premises.

The pods seem to be finding far better use as extra VDSL capacity.

[gt94sss2]

I attach the coverage stats OR released this week

Looks like just over 10% of properties passed by G.Fast have installed - and the figure is increasing.

Surprised it's so high tbh

[Black Sheep]

Tons of G.fast has been overbuilt with FTTP now. The big evidence it's not being pursued might well be that 9 months ago Openreach passed 2.831 million premises with G.fast and as of this month passed 2.831 million premises.

The pods seem to be finding far better use as extra VDSL capacity.

Uninteresting fact: At one point in the past, if a full PON (up to 120 premises) was captured within the G.fast elipse zone (200/250mtrs from memory ??), then we wouldn't provide FTTP for that particular PON.

It would still be surveyed for blockages, poling, CBT/Joint locations, amount of stores required, costings, etc ... plus capacity will be left at the splitter. So, if and when an increase from 330Mbps is necessary/mandatory, the uplift would be quite quick to put in place. 

[Alex Atkin UK]

Uninteresting fact: At one point in the past, if a full PON (up to 120 premises) was captured within the G.fast elipse zone (200/250mtrs from memory ??), then we wouldn't provide FTTP for that particular PON.

It would still be surveyed for blockages, poling, CBT/Joint locations, amount of stores required, costings, etc ... plus capacity will be left at the splitter. So, if and when an increase from 330Mbps is necessary/mandatory, the uplift would be quite quick to put in place. 

One thing has been bothering me, what is it Openreach refer to as a "PON" if the actual PON only covers 32 properties max?

[Black Sheep]

It's an affectionate term - PON by its true definition is a helluva lot larger, but it's easier for us to quickly chat about PON's as opposed to Splitter Nodes ... especially when you are mentioning them hundreds of times a day  .

For info - a PON (Splitter Node) is provisioned for 120 premises (not 32), maximum. Yes, there are grey area's where we can up this, but as a rule, it is 120 THP (Total Homes Passed).

I think you are referring to the SASA (Splitter Array Sub Assembly), which splits the one fibre light into 32 separate lights. A PON will have a maximum of 4 x SASA's in the large joint in which it is housed. Out of the 32 potential light sources, only 30 will be used - ergo 4 x 30 = 120THP.

[Alex Atkin UK]

So are all 120 on the same signal?  Would seem a bit high a contention ratio if so vs 30 which actually seems somewhat low.

Mind you nothing like CityFibre where if they are using GPON a single customer uploading could eat all or almost all the bandwidth (though I presume TDMA actually guarantees everyone gets a fair share in this scenario?).

[j0hn]

An Openreach splitter node contains up to 4 GPON splitters (SASA's as BS says).
A maximum of 30 lines per SASA, making a total of 120.
120 is fed by 4 fibres.

BS is using Openreach speak for PON.
In GPON terms it's a 32 way split, but 2 must be kept spare.

[Weaver]

What’s the two spare about?

[Black Sheep]

What’s the two spare about?

Simply put - future proofing. That is why we have to request permission from way up high, to use these spares.

[Alex Atkin UK]

BS is using Openreach speak for PON.
In GPON terms it's a 32 way split, but 2 must be kept spare.

What threw me was:

PON by its true definition is a helluva lot larger

[dee.jay]

Pleased to see my exchange on the list, but sadly in the third column.

That vague timeline is annoying, basically somewhere between 22 and December 26.

Maybe time to dust off the FTTPoD quotes.

[Alex Atkin UK]

Maybe time to dust off the FTTPoD quotes.

Aren't they refusing FTTPoD when your area is "in scope" of a commercial rollout though?

Its somewhat annoying as you would think they would let you pay to jump the queue.

[dee.jay]

Aren't they refusing FTTPoD when your area is "in scope" of a commercial rollout though?

Its somewhat annoying as you would think they would let you pay to jump the queue.

Really?

Doesn’t that mean everyone now then? Practically all areas are in scope up to 2026?

At this point I’m happy to pay up

[Chrysalis]

Interestingly, it was just brought up in the commons how the urban FTTP rollout from Openreach is not up to what was expected but of course their rollout in rural areas is one of the best in the world.  The government of course ignored the former comment.