VDSL2 is the latest generation DSL technology ahd can deliver up to 100Mbps symmetric bandwidth (profile 30a) depending on various factors. Due to specific BT standards and regulations it is only possible to deliver up to 50 Mbps downstream and up to 10 Mbps upstream (profile 8c) in the UK. VDSL2 (as well as ADSL2+) can coexist on the same phone line with POTS services. In some cases within buildings using privately owned telephony grade copper pair cables it is possible to achieve 100Mbps symmetric bandwidth.

The most important difference between VDSL2 DSLAMs and the other two DSL technologies mentioned above is that the DSLAMs are not installed in BT exchanges, but in roadside cabinets. This is called sub-loop unbundling (SLU). Typically the SLU operator installs a cabinet containing the DSLAMs next to the BT cabinet. The are many more costs associated with a VDSL2 network than with EFM or Bonded ADSL 2+, because there are large costs around unbundling each BT cabinet, building new cabinets and providing backhaul and power to these new cabinets.

Fiwave offers a VDSL2 solution for service providers and community projects. The solution is compatible with the UK spectral mask and all other EU and UK regulations relating to this type of equipment. Fiwave offers advice on technology and service design and implementation for service providers looking to deploy VDSL2. The higher bandwidths possible with VDSL2 enabled by shorter phone lines from the cabinet and wider spectrum utilised by VDSL2 allows service providers to deliver next generation services such as ultra broadband and high definition TV over the existing twisted pair copper plant. The services are very well suited for residential subscribers and small to medium offices. The Fiwave solution supports business type services such as providing last mile access to Metro Ethernet networks as well as residential services.