LLU equipment

What is different with the equipment that LLU companies use that give
customers a faster speed than BT?

BT say my adsl line is only capable of 2Mb maximum but I see now this is
clearly not the case. Surely if the LLU companies can give faster speeds
then so can BT?

"Beck" <(E-Mail Removed)> wrote in message
news:esnm9o$867$(E-Mail Removed)...
> What is different with the equipment that LLU companies use that give
> customers a faster speed than BT?
>
> BT say my adsl line is only capable of 2Mb maximum but I see now this is
> clearly not the case. Surely if the LLU companies can give faster speeds
> then so can BT?

BT use Alcatel and Marconi (now owned by Ericson) DSLAMs.

Easynet and Bulldog use Marconi DSLAMs.

I, personally when I worked for Marconi, have seen the Marconi DSLAMs run at
50M but it will not appear in the UK as we have a restricted set of
frequencies that can be used here.

The Marconi DSLAM can be fitted with a variety of cards that included (may
not now):-

ADSL,
ADSL2+
POTs to V5
POTs to IP
POTS + ADSL
SDSL
VDSL
Fibre (ATM, etc)
Ethernet

I have built and configured all of them except the VDSL which we never
demonstrated in the UK AFAIK.

"dennis@home" <(E-Mail Removed)> wrote in message
news:45efc7ae$0$17951$(E-Mail Removed)...
>
> "Beck" <(E-Mail Removed)> wrote in message
> news:esnm9o$867$(E-Mail Removed)...
>> What is different with the equipment that LLU companies use that give
>> customers a faster speed than BT?
>>
>> BT say my adsl line is only capable of 2Mb maximum but I see now this is
>> clearly not the case. Surely if the LLU companies can give faster speeds
>> then so can BT?
>
> BT use Alcatel and Marconi (now owned by Ericson) DSLAMs.
>
> Easynet and Bulldog use Marconi DSLAMs.
>
> I, personally when I worked for Marconi, have seen the Marconi DSLAMs run
> at 50M but it will not appear in the UK as we have a restricted set of
> frequencies that can be used here.
>
> The Marconi DSLAM can be fitted with a variety of cards that included (may
> not now):-
>
> ADSL,
> ADSL2+
> POTs to V5
> POTs to IP
> POTS + ADSL
> SDSL
> VDSL
> Fibre (ATM, etc)
> Ethernet
>
> I have built and configured all of them except the VDSL which we never
> demonstrated in the UK AFAIK.

So there is a theoretical limit on each line but this can be extended by the
use of better quality equipment by different companies?

"Beck" <(E-Mail Removed)> wrote in message
news:esooin$nkd$(E-Mail Removed)...

>
> So there is a theoretical limit on each line but this can be extended by
> the use of better quality equipment by different companies?

Not necessarily quality.. just different standards.
When BT started broadband OFCOM (OFTEL then) restricted them to use a
national frequency plan.
This limited the maximum speed on lines.

The LLU operators weren't quite as restricted when they started.

"dennis@home" <(E-Mail Removed)> wrote in message
news:esorb1$u87$(E-Mail Removed)...
>
> "Beck" <(E-Mail Removed)> wrote in message
> news:esooin$nkd$(E-Mail Removed)...
>
>>
>> So there is a theoretical limit on each line but this can be extended by
>> the use of better quality equipment by different companies?
>
> Not necessarily quality.. just different standards.
> When BT started broadband OFCOM (OFTEL then) restricted them to use a
> national frequency plan.
> This limited the maximum speed on lines.
>
> The LLU operators weren't quite as restricted when they started.

Thanks for the explanations. Is it possible in the long term for BT to
extend the lines yet again for customers and then increasing speeds again?
Or is there a maximum to which copper can handle?

On 8 Mar 2007, "dennis@home" <(E-Mail Removed)> wrote:

>When BT started broadband OFCOM (OFTEL then) restricted them to use a
>national frequency plan.
>This limited the maximum speed on lines.

>The LLU operators weren't quite as restricted when they started.

Presumably this was one of those "don't let the biggest player wipe the field
with the newcomers, allow them some flexibility and when established, allow
BT to offer more than the basics" situations... I recall something about
1,500,000 lines on LLU before BTW would be allowed to lower pricing for
something... presumably a similar "competition" ruling.

"NoNeedToKnow" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On 8 Mar 2007, "dennis@home" <(E-Mail Removed)> wrote:
>
>>When BT started broadband OFCOM (OFTEL then) restricted them to use a
>>national frequency plan.
>>This limited the maximum speed on lines.
>
>>The LLU operators weren't quite as restricted when they started.
>
> Presumably this was one of those "don't let the biggest player wipe the
> field
> with the newcomers, allow them some flexibility and when established,
> allow
> BT to offer more than the basics" situations... I recall something about
> 1,500,000 lines on LLU before BTW would be allowed to lower pricing for
> something... presumably a similar "competition" ruling.

Hi Beck

Long time, no post

Be use Alcatel DSLAM
You don't get the same issues with congested virtual paths on LLU that you
do with Datastream / IPStream which also helps with speed
Try this estimator for ADSL2+ with your downstream attenuation to see what
might be achievable in terms on sync speed. It was pretty accurate for me
http://www.dslzoneuk.net/maxspeed2.php

Nicola

"Beck" <(E-Mail Removed)> wrote in message
news:esooin$nkd$(E-Mail Removed)...
>
> "dennis@home" <(E-Mail Removed)> wrote in message
> news:45efc7ae$0$17951$(E-Mail Removed)...
>>
>> "Beck" <(E-Mail Removed)> wrote in message
>> news:esnm9o$867$(E-Mail Removed)...
>>> What is different with the equipment that LLU companies use that give
>>> customers a faster speed than BT?
>>>
>>> BT say my adsl line is only capable of 2Mb maximum but I see now this is
>>> clearly not the case. Surely if the LLU companies can give faster
>>> speeds then so can BT?
>>
>> BT use Alcatel and Marconi (now owned by Ericson) DSLAMs.
>>
>> Easynet and Bulldog use Marconi DSLAMs.
>>
>> I, personally when I worked for Marconi, have seen the Marconi DSLAMs run
>> at 50M but it will not appear in the UK as we have a restricted set of
>> frequencies that can be used here.
>>
>> The Marconi DSLAM can be fitted with a variety of cards that included
>> (may not now):-
>>
>> ADSL,
>> ADSL2+

The main selling point for LLU ISPs seems to be ADSL2+ or MAX, with ADSL2+
being 24mb I'd say most people will experience a significant increase unless
youre many kilometres away from the exchange.


>> POTs to V5
>> POTs to IP
>> POTS + ADSL
>> SDSL
>> VDSL
>> Fibre (ATM, etc)
>> Ethernet
>>
>> I have built and configured all of them except the VDSL which we never
>> demonstrated in the UK AFAIK.
>
> So there is a theoretical limit on each line but this can be extended by
> the use of better quality equipment by different companies?

Nicola Redwood wrote:

> You don't get the same issues with congested virtual paths on LLU that you
> do with Datastream / IPStream which also helps with speed

Would you mind elaborating on that please ?

Graham

"Nicola Redwood" <nicolaexternal-(E-Mail Removed)> wrote in message
news:esq1n9$imv$(E-Mail Removed)...

> Hi Beck

Hola Nicola, how are you?

> Long time, no post

thats two people this week who missed me. awww :-)

> Be use Alcatel DSLAM
> You don't get the same issues with congested virtual paths on LLU that you
> do with Datastream / IPStream which also helps with speed
> Try this estimator for ADSL2+ with your downstream attenuation to see what
> might be achievable in terms on sync speed. It was pretty accurate for me
> http://www.dslzoneuk.net/maxspeed2.php

Thanks for the link. That says that with adsl2+ I can get between 2-4Mb
line. Currently getting 3, so there will not be much of a difference,
although obviously with my line stat of 63.5db down, I would not expect much
else anyway.