DSL, Digital Subscriber Line, is a high-speed Internet service over ordinary phone lines using broadband modem technology. DSL technology allows Internet and telephone service to work over the same phone line without requiring customers to disconnect either their voice or Internet connections.
terminology
- DSL - Digital Subscriber Line
- ADSL - Asymmetric Digital Subscriber Line
- CO - Central Office (service provider)
- DSLAM - DSL Access Multiplexer
- PSTN - Public Switched Telephone Network
- FDM - Frequency Division Multiplexing
- POTS - Plain Old Telephone Service
- CAP - Carrierless Amplitude Phase
- DMT - Discrete MultiTone
- QAM - Quadrature Amplitude Modulation
- DWMT - Discrete Wavelet MultiTone
- R-ADSL - Rate-Adaptive Digital Subscriber Line
- HDSL - High Bit-Rate Digital Subscriber Line
- VDSL - Very High Bit-rate Digital Subscriber Line