network-programmingsignalscommunicationmodulationadsl

Is ADSL digital or analog?

I've read that ADSL uses frequency-divided multiplexing and only analog signals use FDM. Then why there's the term 'digital' in ADSL(Asymmetric digital subscriber line) if it uses analog signals?

Solution

  • The signal is digital, the line encoding that implements this signal is described in the real macro world with analog.