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[S.Stephenson]

Well if it is possible then I feel very confident as if a G.Fast cabinet was at the top of my road it would place 70-80 houses within 200m of it, all the DP cables pass down the same path and I assume they have a joint at the top of the road.

G.Fast rolled out that way seems much cheaper and quicker, question is can you power a G.Fast node with a capacity of say 50 with forward power?

[Black Sheep]

From my side of the fence, the different powering aspects are still 'In trial', and as such remain a confidential document so I can't personally comment. However there's probably enough stuff on the WWW to find an answer, or some of the resident boffins may be able to provide an answer ?? 

[S.Stephenson]

Seems like the idea of G.Fast nodes as shown in my diagram would work perfectly in a village such as mine, it could probably work everywhere if you can tap into the cables in an easy enough way.

Thinking about it if they don't roll it out like I'm thinking then they should hire me to do their planning 

I'm sure it's not as simple as I'm thinking, but it seems like a great solution to me less nodes and as a result less ducting work, only problem I can see with larger nodes is the powering issue, but if they can forward power 8 small nodes I'm thinking it can't be too hard to do the same for one large one.

[kitz]

From my side of the fence, the different powering aspects are still 'In trial', and as such remain a confidential document so I can't personally comment.

I have in my possession some interesting white paper type facts from IEE telecommunications and quite a lot of stuff specifically written by about 20+ bods from BT Exact and other boffins at Adastral Park.   Some of the things in there are eye-opening.   
Like they were trialling FTTH in Ipswich in something like the late 90's.  Way back in 2004 they were already doing designs for FTTC...  and wait for this even some FTTdp.  My printer/scanner is broken so I cant scan to show (aside from the fact theres so much of it).   They were even planning sub-loop unbundling back in 2004 until they hit problems with what was then OFTEL and possible complaints from local councils for all the additional cabs that would be required for sub-loop FTTC.  iirc there were also difficulties with OFTEL because their aim of rolling out FTTx was for VoD which they wanted to do over 10 years ago.

They were very aware of the problems with FEXT - in fact they cited it being one of their biggest issues and iirc stated that FEXT in the field was actually far worse than something called the Werner FEXT model.   

In there there's also an image of their old 20cn network showing just how meshed it is even before they started adding the 21CN nodes at places like Preston and Sheffield. 
It just shows that you cannot compare to a 4 node ring topology like say Skys.   Those guys at places like Adastral Park arent dumb and one area where BT shines at is R&D.   Their R&D is one of the world's most respected and innovative places when it comes to the telco industry. * 
 Shame it just doesnt all get rolled out to us, so that we can benefit.   I think like that with any corporate business at the end of the day, the bean counters (and OFCOM)  have the final say.


--------
*its only when you sit down and read some of the stuff that they do, that you realise that behind closed doors, those guys are on the ball.  Its one of the prime reasons why Ive always said a total openreach split would be bad for the UK.  Its my firm belief that Openreach needs BT for its R&D.     

[Black Sheep]

Additional info on Adastral Park, for those interested ............

From pioneering work in optical technologies and digital switching through to work in advanced software techniques and protocols, Adastral Park is recognised as one of the leading centres of technical innovation in the communication world.

Adastral Park is BT’s global innovation and development centre. It’s also the home of Innovation Martlesham – a joint initiative by BT and Local Authorities to encourage ICT related companies to Co-locate, Collaborate and Innovate at the Park.


Key Facts

* Long history of innovation dating back to the Aircraft Experimental Unit in 1917

* BT’s global engineering HQ

* Home to 3100 BT people

* The focal point of BT Research and Development

* High tech campus with 70 technology companies

* Employing over 700 partner people

* Over 200 BT research specialists, with 65 PhDs, generating 240 patents a year

* 50 Innovation Hothouses per year with customers, suppliers and developers

* More than 50,000 non-BT visitors each year convening to discuss innovation

* 6 sector specific customer showcases

* Over 1000 VIP customers, civil servants and policy makers hosted in 200 events over the past year

* Largest test & integration facility in Europe

* UK operations centre for managing BT’s UK and global networks

* 4500 students and 920 teachers engaged from 190 schools in 2013/14

[Black Sheep]

I think we can all agree, these guys ^^^^ aren't messing around with string and tin-cans. Respect to innovators. 

[sevenlayermuddle]

I had the pleasure of visiting Adastral Park a few times over the years of my career. Always left thinking the same thing... 'Wish I worked for BT' .

A very impressive place, home to some very impressive people.

[Black Sheep]

To quote the kids ...... 'Well jel' ..... I would love to pay this place a visit. In fact, I might see if there's any scope for engineers to have a look around ??

[Ragnarok]

So, I'd guess with relates to XG.fast or anything like phantom mode applied to any of the dsl tech, and any potential deployment will depend on vendors and tech partners getting the technology on silicon and working in a convieinet package to be deployed in the field.

Domestic router and ethernet technology needs to make a leap before we start thinking more than a gigabit on the home front. 10gb ethernet is painfully expensive for most domestic users at the mo.

[niemand]

I think we can all agree, these guys ^^^^ aren't messing around with string and tin-cans. Respect to innovators. 

Indeed, though you can see why the public are largely ignorant given how little of it has found its way to our homes and businesses so far. Outside of small trials we're running on 11+ year old technology for our broadband.

When those holding the purse strings get with the innovation programme I'll be a happy bunny

[niemand]

Domestic router and ethernet technology needs to make a leap before we start thinking more than a gigabit on the home front. 10gb ethernet is painfully expensive for most domestic users at the mo.

2.5Gb and 5Gb over Cat5e coming to a home switch and router near you this year. Access points outgrew GigE

[Ronski]

It's very good to know that there's plenty of life left in all the cat5e cable running around my house.

[Ronski]

Spotted this today, looks very interesting.

Sckipio proves G.fast is not just downstream only. I've never heard of broadband that is faster on the upstream than the downstream in 17 years reporting. G.fast can swing either way, devoting up to 90% of the total bandwidth (typically, 250-800 megabits) to either upstream or downstream. Current proposals in standards will allow the telcos to switch the ratio on the fly based on traffic demands. 

http://gfastnews.com/index.php/90-r/201-750-megabits-upstream-g-fast

[Chrysalis]

750mbps upload next to the cabinet

[niemand]

Interesting but I believe every line on the node has to have the same split, unless they've worked out how to compensate in real time.