Choices on moving from ADSL to NBN

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POI & Backhaul

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Point of Interconnect (PoI)
The connection point that allows retail service providers (RSPs) and wholesale service providers (WSPs) to connect to NBN Co access capability.

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Backhaul
Backhaul typically refers to the side of the network that communicates with the global Internet and normally refers to your RSPs connection from the POI (Point of Interconnect) to their network presence and the wider internet. But the NBN also has Backhaul as per this from NBNCo “The infrastructure required to connect new developments to the wider telecommunications network – typically an optical fibre link – is called ‘backhaul’. nbn backhaul typically involves a connection from the new development to an nbn network access point that has capacity to service the new development.” All these have costs involved, some are one off, others ongoing.

From Tektel training some explanations to help you understand POI, CSA, and CVC:
"The NBN comprises multiple “Connectivity Serving Areas” or CSA, each with a “Point of Interconnect” or POI to which Access Seekers (RSPs) connect their respective backhaul infrastructure.

Without this backhaul from every POI, Aussie could not connect clients Australia wide. If they chose for example to only supply Brisbane they would only pay for the connection for the relevent POIs that support Brisbane and then would connect backhaul from those.

So the implications are if they have completed it, is as I mentioned above they can provide services Australia wide.

The 80% network capacity limit on total customers I am not really sure what they are trying to say. More important is the amount of CVC they purchase to cover the bandwidth their clients are going to use, this is what largely determines peak hour bottlenecks. An example of what they may be trying to say is they have purchased enough CVC for 100 clients but only allow 80 clients to be signed up (80%) then the question really should be how much CVC have they purchased for each of those 80 clients (whats the average CVC they bought per client).

If they are referring to their backhaul they might limit the number of clients so that the backhaul is not overwhelmed by the amount of data flowing between the POI and their Infrastructure during peak times??? Then it begs the question what sort of backhaul capacity did they build into their system.

Activation is different to connection. Activation is the process ABB do to authorise you on their infrastructure after you have been connected. Think of activating your mobile service how you have to get authorised before you can start calling even though your phone can find the mobile service (connection).

Connection is more the physical process though it can be software or a mix of both that joins your house to the NBN circuitry so you can then use the network.

So Chris is saying they were able, once connected, to ring ABB and have their service activated in 75 minutes. The connection may have taken weeks to occur before this activation phase.

The node distance to your premises is likely going to be the defining factor of what speeds you achieve (also the state of the copper between your house and the node) and will definitely not be the distance between the node and pillar.

If the copper distance to your house is about 700 m (it may be a lot more) and is in good condition you may expect around 60 - 80 Mpbs down and about 20 - 30 Mbps up max. Measuring the distance from your house by streets may be a slightly more accurate measurement of copper distance but some have been 500 m from a node but copper distance has been around 1000 m. and if the copper is poor you will see less speed again.

FTTN changeovers/connections are perhaps one of the simpler transitions. They shouldn’t need to visit your house generally, most of the connection phase will involve changing the copper connection at the pillar so that it connects to the VDSL modem in the cabinet. Then you may need to ring ABB and get them to activate your connection.