This is a standards-based solution providing extended Ethernet connectivity (usually Internet access) over copper voice-grade cabling using asymmetrical DSL (Digital Subscriber Line) technologies.
The VDSL2 standard offers DSL line rates up to 100Mbps in the downstream (Internet-to-User) direction and up to 100Mbps in the upstream direction, this allows spectra to be used for analogue telephony (POTS – Plain Old Telephone System), VDSL2 is primarily designed for residential usage.
Both data and telephony (POTS) can be used concurrently if so required.
Access Network Frequency Plan
In the UK the ANFP (Access Network Frequency Plan) currently restricts the maximum permitted line rates to 80Mbps/20Mbps per wire pair, this is achieved using ‘power back-off’ so as not to interfere with other xDSL technologies using the same cable binder.
VDSL2 has a reach of up to 1.5Km, hence the reason this technology has to be deployed at the edge of a Service Provider’s network footprint i.e. in the Street Cabinet which in turn has a fibre-optic backhaul to the Telephone Exchange/Internet service access point.