The cable is already there but they only commission 1 x 1Gb link when the cabinet is 1st installed. So it seems that once they hit 100 connections they will then comission another 1Gb link

Ah ok maybe I misunderstood him then and he was on about commission of the cable and not installing it then, To me that sounds more like it.
LOL after all the messing around BT did with the dates I bet they wished they had done this sooner as they've missed out on a lot of money from use LOL

iechyd da

100th on a particular cab or 100 installs in total.?

Significant difference.

In reply to a post by Ribble:

The cable is already there but they only commission 1 x 1Gb link when the cabinet is 1st installed. So it seems that once they hit 100 connections they will then comission another 1Gb link

That's not completely true.

Because ISP's rent VLANs in the new FTTC cabinets, BT have to keep up with the demand on the fibre capacity back to the exchange where the data is handed over to each ISP. So if there are

So if there are 25 people syncing at 40,000kbps, BT can leave it with the 1Gbps fibre to the exchange as there would not be more than 1Gbps needed.

However, if there are 26 people syncing at 40,000kbps, BT would have to install an additional 1Gbps fibre back to the exchange.

Think of it like this: If a fibre backhaul is set to 1Gbps in this situation (Supplied over TWO fibres & the exchange has a pair of fibres spare, owned by BT Wholesale) and there are 10,000 lines connected to it as BT Broadband packages that is fine (as long as that is what is required by BT Broadband - that's another story).

IF an LLU ISP (Like Sky) comes along and purchases 100Mbps backhaul from BT Wholesale, BT Wholesale would HAVE to provide it to the exchange (In this case, there are fibres spare, so it would be possible) as that is what Sky is paying for.

Likewise, if a cabinet's link to the exchange is full and is congested at all, BT have to make more capacity available as it has other non BT Wholesale ISPs traffic on it.

I hope that explains it

Edited by chris6273 (Tue 19-Apr-11 06:19:33)

orly
There are now 100 people connected to my DSLAM cab using Fibre BB and as I said before there are only 200 slots in this cab. The next Dslam cab down the road only has 23 using it, The others around here he showed me have 20-30 connections. Ours seem to be the Cab in demand.

chris6273
There are no other ISP's offering FTTC around here yet, Talk Talk are from May and Plusnet after Easter.

iechyd da

You are getting Fibre connections and Copper connections muddled up.

The Two Cabs (New and Old) are connected by 100 pair cables, one from Old to new to get to the VDSL and Splitter, One from new to old to get the voice back to the copper back to the exchange.

These are all provided up front and cabled to the VDSL cards.

Engineer now only has to work on the old cab, 1st customer gets jumpered from house to Pair one (Old to new) and pair 1 (New-old) to the exchange. Therefore no work on the VDSL cab so lowwer fault liability as the electronics are not open to the elements.

When 100 customers are used two new 100 pair coppers are required to connect the two cabs for the next 100 customers. This is what is now required.

Fibre Connectivity goes in 1GE per 66 customers to keep within the 15Mb guarranteed backhaul speed. So every 66 customers a new GE is required but the fibres are alll installed as aprt of the original build. The GE cards would be supplied as required as they are an added cost.

Kitkat

In reply to a post by paul1360:

chris6273
There are no other ISP's offering FTTC around here yet, Talk Talk are from May and Plusnet after Easter.

iechyd da

I am aware of that but I was talking about when LLU providers start offering FTTC products, that is the way it will be handled.

Edited by chris6273 (Tue 19-Apr-11 14:15:36)

http://www.thinkbroadband.com/guide/fibre-broadband....

Urm lots are selling the BT Wholesale WBC FTTC products.

TalkTalk will be more different since they have their own LLU, but Plusnet is simply just another addition to that list as they sell what BT Wholesale offer.

Hang on what am I getting mixed up over??????
All I've said is that the new Fibre Cab has 200 slots for people, that has a fibre cable going from there back to the Exchange, it also has 2 x 100 pair cables going from it to the old Cab and that cable is connected up for FTTC for people like me. Now the OR Eng told me that he did the 100th fibre connection yesterday, so the cab has used 1/2 it's capacity.

iechyd da

In reply to a post by paul1360:

Hang on what am I getting mixed up over??????
All I've said is that the new Fibre Cab has 200 slots for people, that has a fibre cable going from there back to the Exchange, it also has 2 x 100 pair cables going from it to the old Cab and that cable is connected up for FTTC for people like me. Now the OR Eng told me that he did the 100th fibre connection yesterday, so the cab has used 1/2 it's capacity.

iechyd da

It's at half its capacity because at more than 200 lines (probably a smaller cabinet than typical ones) there will physically not be any more frame space in the FTTC cabinet.

Edited by chris6273 (Tue 19-Apr-11 17:34:15)