| head-end controller
To provide access to the Internet over
a cable network, a head-end controller device connects to an IP router
that sends and receives the data from the rest of the Internet. The
controller interprets the data it receives from individual customers and
keeps track of the services offered to each of them. The controller also
modulates the data received from the Internet so that the head-end
equipment can send it to a specific subscriber. Some head-end controllers
let the cable company create different service packages depending on
customers' bandwidth needs. |