G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
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Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 5:42 PM
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Quote from: chrcoluk except g.fast requires vectoring to work properly. So presumably if vectoring doesnt work then there is little point with g.fast.
And G.fast requires entirely different hardware, not least different DSP capabilities, different ways of being powered, a different number of lines supported, and a different way of being packaged. So presumably the status of vectoring on the ECI VDSL2 cabinets that are already standing has little impact on anything whatsoever.
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 5:58 PM
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Quote from: Melancholie Regardless their DSLAMs can be used to backhaul G.fast nodes in the field.
Is that true? In an integrated way?
As far as I can tell, Alcatel-Lucent treat their 7357 ISAM nodes as a remote extension of the main cabinet, and all O&M works through the main cabinet.
If an intermediate cabinet is just going to be part of the backhaul by acting as a glorified splice, isn't it better to wire the G.fast node directly into the aggregation node?
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 6:02 PM
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Quote from: Melancholie
Quote from: AndyH I doubt ECI have anything like the capital for R&D as Alcatel/Huawei.
Indeed. I'm sure they'll have G.fast line cards ready at some point they'll just be a bit behind the curve.
Huawei's mission statement appears to become like Ericsson. That'll need a lot of R&D money.
Broadband Trends had this image for the relative maturity of the vendors for vectoring in 2012:
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 6:18 PM
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Quote from: WWWombat If an intermediate cabinet is just going to be part of the backhaul by acting as a glorified splice, isn't it better to wire the G.fast node directly into the aggregation node?
You wouldn't use it as a splice, you'd use it as a switch. The MA5603T can take 16 port GPON cards.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 7:17 PM
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Quote from: WWWombat Huawei's mission statement appears to become like Ericsson. That'll need a lot of R&D money.
Surely you mean ALU (Alcatel) rather than Ericsson?
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
30-01-2015 11:46 PM
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Quote from: Melancholie You wouldn't use it as a splice, you'd use it as a switch. The MA5603T can take 16 port GPON cards.
You could, but why?
The point of the AGN is to splice the fibre to nodes or users further out. There's no need to force everything the FTTC cabinet - especially if that forces less capacity for users within range of that cabinet.
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
31-01-2015 12:02 AM
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Quote from: AndyH Surely you mean ALU (Alcatel) rather than Ericsson?
Nope, I do mean Ericsson. Speaking as someone who worked for Ericsson, and knows people who went to work in Shanghai... I've heard precisely just how much they wish to emulate Ericsson
Ericsson has a much greater international presence, particularly in mobile - and I mean the network side, rather than the device side. They're very big in telecoms - but the public knows almost nothing about them, save their little side-trip into devices in the eighties and nineties.
Edit: I was trying to say that Huawei were trying to emulate Ericsson across everything they do, rather than just in the narrow field of vectoring; in that field, obviously ALU would be a more natural target.
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
31-01-2015 2:30 AM
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500Mbps @ 100m
200Mbps @ 200m
150Mbps @ 250m
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
31-01-2015 12:35 PM
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As part of the trial, BT pointed out that two of the distances used (the short line of 19m, long line of 67m) represented the 20th and 80th percentiles of the distribution of drop-wire lengths in the country.
Using FTTC since 2011. Currently on 80/20 Unlimited Fibre Extra.
Re: G.fast nationwide deployment in 2016-7 - pilots in Huntingdon & Gosforth in 2015
31-01-2015 1:00 PM
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Quote from: WWWombat You could, but why?
The point of the AGN is to splice the fibre to nodes or users further out. There's no need to force everything the FTTC cabinet - especially if that forces less capacity for users within range of that cabinet.
Can't put many G.fast nodes onto a GPON split. Saves blowing further fibre from AN to each area - there isn't an abundance of it blown initially.
Doing it the other way means basically doing an FTTPoD build for each node. Quite time consuming if deploying to distribution points.
The cabinets are there - finding other uses for them when VDSL is obsoleted makes sense.
Shouldn't affect capacity for VDSL users directly connected to cabinets.
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