SDSL broadband (Symmetric digital subscriber line) allows broadband
data services to be carried on conventional copper pair telephone
cables with the same data rates on the uplink and
downlink. The capacity provided by SDSL depends on the distance
between the subscriber's premises and the local telephone exchange; SDSL
broadband provides higher capacities for subscribers who are
closer to the exchange, and lower capacities for subscribers who
are further away.
The term "symmetric" in SDSL broadband
refers to the commonality of uplink and downlink capacities; the
same capacity is provided for the downlink as for the
uplink.
Other topics in our resources on Broadband Internet related to SDSL Broadband include: