Asymmetric Digital Subscriber Line is a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It achieves this by utilizing frequencies that are not used by a voice telephone call. The connection is asymmetric, meaning it dedicates more bandwidth to downstream traffic than upstream traffic, which suits typical residential internet usage.
The customer is too far from the DSLAM, so their ADSL keeps dropping sync.
Also heard as
- Asymmetric Digital Subscriber Line
Do not mix it up with
- SDSL: SDSL provides equal upload and download speeds, whereas ADSL provides faster download speeds.
Related terms
DSL
A digital subscriber line is a technology that transmits high-bandwidth data over traditional copper telephone wires.
SDSL
Symmetric Digital Subscriber Line is a broadband technology that offers equal upload and download speeds over copper telephone wires.
HDSL
High-bit-rate Digital Subscriber Line is an early broadband protocol for copper wires.
PSTN
The global infrastructure of circuit-switched telephone networks operated by national and regional carriers.