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: