Modem
•Do
modulation
•D2A
and A2D converter
•Mode+demod=modem
3 types of modems
•External direct connect modem
•Internal
direct connect modem
•Acoustic
coupler modem
•External
dcm are
housed in external cabinet
•Internal
dcm are
plugged in pc slot or on board
•Fewer
cables less expensive
•Both
have own processor , storage, and communication circuit for dial , answer
,disconnect.
No comments:
Post a Comment