Tuesday 17 November 2015

Latest estimate - December 2015

http://www.digitalscotland.org/whereandwhen

Latest estimate of FTTC rollout for Ledaig Exchang is December 2015

Ledaig

Fibre broadband is not currently available in this area.
Digital Scotland plans to extend fibre broadband coverage in this area. Work under the Digital Scotland programme means that the first premises in this area are currently expected to receive fibre broadband by the end of December 2015. Please note that engineering plans and delivery timescales depend on many factors and can be subject to change. All information is based on the best view we have today using our current plans. Deployment in this exchange is being managed by Highlands and Islands Enterprise, for more information go to www.hie.co.uk/digital or send an email to hidigital@hient.co.uk.

Monday 23 March 2015

"SDH bypass" works - does this mean no chance of ADSL2+?

[edit 25-1-16 the fibre for the new cabinet in the village comes up from Oban, rather than from the Ledaig exchange itself, therefore the exchange has not yet been upgraded to 21CN  and ADSL2+ is not an option at present]

BT have scheduled work at the Ledaig exchange for "SDH bypass, programme number 46, migrating customers to a strategic transport platform" on 1st April 2015 overnight. 

I *think* this means that the possibility of non-FTTC connections at Ledaig being co-incidentally upgraded to ADSL2+ is now dead in the water. 

What I *think* is happening, in simple terms, is that the existing ADSLMax circuits that use an old 'backhaul' for transferring the data from the exchange onto the rest of the internet, are being altered slightly to use a new 'backhaul' that is common with the new FTTC connections. The kit in the exchange where your copper line terminates  - the "DSLAM" - will remain the same; data from the DSLAM will just be transported on from the exchange to the rest of the internet using a different communication technology. 

This effectively extends the life of the existing ADSLMax (8Mbps) broadband DSLAMs as their traffic can be ported over the new 21CN, BT can then retire the old 20CN backhaul from the exchange without the need to convert each customer to a new ADSL2+ MSAN.

This means your connection to the exchange will still be "ADSLMax" (the 8Mbps broadband) product, and therefore your internet connection speed will remain the same. I had hoped that as part of the exchange works, the DSLAMs would be replaced by "MSAN"s which will use the new 21CN backhaul and give you "up to 24Mbps" broadband connections instead. However, BT will be performing an 'SDH bypass' instead, to route these ADSLMax connections out from the exchange over the 21CN network, without migrating end users to ADSL2+ instead.

I will admit to not fully understanding the terminology. I have found this publication on the internet from BTwholesale that shows a diagram of what will change:

www.btwholesale.co.uk/shared/document/Library/Industry_Engagement/ISP_Forum/ISP_Forum_17_April_2013_final.pdf

Page 43 describes how existing products 'outside the WBC footprint' will route traffic direct from the DSLAM to the BRAS, via SDH backhaul.

BT still plans to retire the old "20CN" network, of which these old MAXDSL connections are part, but for Ledaig, by performing this 'SDH bypass', BT can extend the life of ADSLMax connections from the home to the exchange, whilst the backhaul of data can be ported over the (new) 21CN link, which is now at the exchange and will be used by the FTTC connections.



Friday 6 February 2015

benderloch fibre broadband estimate now June 15 !

From Digitalscotland.org

Digital Scotland plans to extend fibre broadband coverage in this area. Work under the Digital Scotland programme means that the first premises in this area are currently expected to receive fibre broadband by the end of June 2015. Please note that engineering plans and delivery timescales depend on many factors and can be subject to change. All information is based on the best view we have today using our current plans. Deployment in this exchange is being managed by Highlands and Islands Enterprise for more information go to www.hie.co.uk/digital or send an email to hidigital@hient.co.uk.

Wednesday 28 January 2015

Forecast Dates disappeared from Openreach exchange checker

The last published forecast date for Benderloch fibre broadband was Dec 2014. Given that it is nearly February 2015 I though I would check on the latest forecast date, only to see that they have given up on offering these forecast dates - presumably because they are so wildly inaccurate?
superfast-openreach.co.uk/where-and-when/