HUT Comms Lab., Timo O. Korhonen
Basic modules of a modem
nDiagnostic unit
nChecks faults and controls the modem
nInterface and line units
nAdapt the modem and terminal
nModem performs A/D and D/A conversion and select rate such
that transmission quality criteria (error rate) can be meet
Interface
and
check
and
check
Mod.
Demod.
Diagnostics
Line
unit
unit
Line