High Speed Data (HSD) systems, which uses the DOCSIS standard, make possible the provision of modern, interactive, multimedia services in CATV networks, including: fast access to the Internet and Intranet resources, data transmission with guaranteed parameters, corporation networks: VPN, teleconferences, IP services, Audio / Video on Demand, On-line - games
A cable modem termination system or CMTS is equipment typically found in a cable company’s headend, or at cable company hubsite, and is used to provide high speed data services, such as cable internet or Voice over IP, to cable subscribers. A CMTS provides many of the same functions provided by the DSLAM in a DSL system.
source: wikipedia
More about DOCSIS 3.0 you will find at VECTOR website.
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