Hybrid
fiber-coax (HFC)
nVery
expensive fiber-optic link that can support high frequencies
nHFC upgrades to existing cable wiring are required
before current TV cable
systems can serve as WAN links
Cable
drop
nFiber-optic
or coaxial cable connecting a neighborhood cable node to a customer’s house
Head-end
nCable company’s central office, which connects cable wiring to many nodes before it reaches customers’ sites