It just changes the way the data looks so it can travel on a different cable.
Modulates/demodulates the data/signal. The ISP doesn’t use Ethernet to transmit the data so to transmit the same data it needs to change they way it look. Kind of like taking normal book text and converting it into braille so a blind person can read it.
It just changes the way the data looks so it can travel on a different cable. Modulates/demodulates the data/signal. The ISP doesn’t use Ethernet to transmit the data so to transmit the same data it needs to change they way it look. Kind of like taking normal book text and converting it into braille so a blind person can read it.