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All Users - The Open Forum => The Business Users Forum => Topic started by: eraser2002 on May 25, 2011, 11:12:53 am



Title: Extended reach ADSL2+
Post by: eraser2002 on May 25, 2011, 11:12:53 am
Hi all

The company i work for tried to get ADSL but it doesnt work over the distance even at 256k from the telephone exchange
Does anyone know if BT / Plusnet support ADSL2+ Annex L which is supposedly extended reach?
And if so would it be worth trying

Thanks
Chris Lacey


Title: Re: Extended reach ADSL2+
Post by: spraxyt on May 25, 2011, 12:35:20 pm
I haven't heard of it being offered but hopefully a Plusnet staff member will pass by soon

David


Title: Re: Extended reach ADSL2+
Post by: chrisparr on May 25, 2011, 01:39:51 pm
We'll find out and get back to you, it's not something I've heard of us offering though.


Title: Re: Extended reach ADSL2+
Post by: Oldjim on May 25, 2011, 09:32:56 pm
http://www.plus.net/support/broadband/speed_guide/upload_speeds.shtml
Quote
*** Annex M availability is dependent on line conditions and costs £10 per month exc.VAT. It is available on request using the Help Assistant.
It is at the bottom of the page and is only available on Business Products


Title: Re: Extended reach ADSL2+
Post by: jelv1 on May 25, 2011, 10:01:22 pm
Time for a :oops: Jim!

Annex L extended reach not Annex M faster upload.


Title: Re: Extended reach ADSL2+
Post by: Oldjim on May 25, 2011, 10:05:13 pm
Whoops  :oops: :oops:


Title: Re: Extended reach ADSL2+
Post by: Mark Kelly on May 25, 2011, 10:14:18 pm
Not something we offer as a standard product but I'll ask Phil, our resident guru, to do a bit of digging for me.


Title: Re: Extended reach ADSL2+
Post by: adamwalker on May 26, 2011, 09:34:34 am
FYI all I've just spoken with Dave T re this who tells me that the reason this isn't offered at present is that it can cause cross-talk over the voice service.

Adam.


Title: Re: Extended reach ADSL2+
Post by: Phil Richardson on May 26, 2011, 11:28:55 am
Annex L is a ADSL2 option and not ADSL2+.

It increases the available frequencies for the upstream. However as noted, it can cause cross-talk.

I'm not sure it's presently allowed under the ANFP, for similar reasons on why Annex M on ADSL2+ is restricted (in the license) to lines not marked as Long.


Title: Re: Extended reach ADSL2+
Post by: eraser2002 on May 28, 2011, 08:37:41 am
hi guys

its a shame its not available

i dont think crosstalk would be a problem if it was only on the line in question
most business customers would prefer to have a dedicated line for broadband than pay 5k per year for a fiber leased line like we do


Title: Re: Extended reach ADSL2+
Post by: Phil Richardson on June 02, 2011, 08:10:41 pm
Right, got an official answer.

This will not be available. The ANFP prohibits it.

http://www.niccstandards.org.uk/files/current/ND1405_2007_03.pdf?type=pdf

Pages 22 & 25


Title: Re: Extended reach ADSL2+
Post by: MauriceB on June 03, 2011, 07:34:24 pm
Thanks Phil an interesting read. :graduate:

Not exactly a categoric NO in there though?  Section 6.7 in particular gives some hope that it might work on some exchanges if the installed equipment etc was ADSL2+ compliant.  BUT!  Given the current fluidity in the pace of equipment change, I accept that in normal engineering practice the chance of having a successful 'one off' investigation must be vanishingly small :lol:

An interesting read nonetheless.

Maurice