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Chrysalis · 02-05-2013, 01:43

there is a lot of discussion about this on tbb and ispreview and kitz forums.

BT have announced vectoring trials soon to start but other than that no more info.

It seems the ECI cabs are usign M41 cards which according to ECI do NOT support vectoring, the HG cabinets I think are ugpradeable with min effort. So it first leaves the question are BT going to spend money replacing hardware in all the ECI cabs they just rolled out or will it be a HG cabinet only upgrade? Its ECI's V41 cards that support vectoring.

Openreach documents dont even mention profile 30a its unlikely that is happening soon, plus BT have also said that vectoring will be used as a speed enabler not speed booster meaning they plan to use it to allow more lines to hit 80/20 or at least closer to it but not to raise the headline speed above that. Which makes sense as they will have soon FTTPoD for higher speeds.

I would say 140mbit without vectoring on 17a whilst possible is unlikely once a cabinet is highly populated. It would be akin to getting 24mbit on adsl2+ aka a rarity. It does seem BT want to avoid the adsl2+ saga which meant only a tiny amount of people had a chance of max speed on that product whilst on 80/20 the amount that get it is significantly higher.

BT have confirmed I have lost 40mbit due to crosstalk but refuse to fix it stating policy is policy (line pair swap and dedicated dropwire refused). When they tested a dedicated dropwire to my property earlier this week my attainable jumped from 68/27 to 97/39 but the manager made the engineer switch me back to the shared dropwire. I am sharing my dropwire with another FTTC customer.

Vectoring recovers 95% of crosstalk loss and makes line performance much more predictable as a result. With vectoring people at 500m are likely to get more than what people at 100m get now without it.

02-05-2013, 01:43	#8
Chrysalis cf.mega poster Join Date: Sep 2003 Posts: 12,047	Re: How fast can BT Infinity go with FTTC? there is a lot of discussion about this on tbb and ispreview and kitz forums. BT have announced vectoring trials soon to start but other than that no more info. It seems the ECI cabs are usign M41 cards which according to ECI do NOT support vectoring, the HG cabinets I think are ugpradeable with min effort. So it first leaves the question are BT going to spend money replacing hardware in all the ECI cabs they just rolled out or will it be a HG cabinet only upgrade? Its ECI's V41 cards that support vectoring. Openreach documents dont even mention profile 30a its unlikely that is happening soon, plus BT have also said that vectoring will be used as a speed enabler not speed booster meaning they plan to use it to allow more lines to hit 80/20 or at least closer to it but not to raise the headline speed above that. Which makes sense as they will have soon FTTPoD for higher speeds. I would say 140mbit without vectoring on 17a whilst possible is unlikely once a cabinet is highly populated. It would be akin to getting 24mbit on adsl2+ aka a rarity. It does seem BT want to avoid the adsl2+ saga which meant only a tiny amount of people had a chance of max speed on that product whilst on 80/20 the amount that get it is significantly higher. BT have confirmed I have lost 40mbit due to crosstalk but refuse to fix it stating policy is policy (line pair swap and dedicated dropwire refused). When they tested a dedicated dropwire to my property earlier this week my attainable jumped from 68/27 to 97/39 but the manager made the engineer switch me back to the shared dropwire. I am sharing my dropwire with another FTTC customer. Vectoring recovers 95% of crosstalk loss and makes line performance much more predictable as a result. With vectoring people at 500m are likely to get more than what people at 100m get now without it.