What is DOCSIS?
Data Over Cable Service Interface Specification (DOCSIS) defines the interface standards for cable modems and supporting equipment involved in high speed data transfer and distribution over cable television system networks. It permits additional high-speed data transfer over an existing cable TV system and is widely used by television operators to offer Internet access through an already existing hybrid fiber coaxial infrastructure. Other devices that recognize and support DOCSIS include HDTV’s and Web-enabled set-top boxes for televisions. In other words, the same cable that brings you CSI can also allow you to send email and receive Internet news.
DOCSIS is an acronym for “Data Over Cable Service Interface Specification”. DOCSIS provides a set of standards and a certifying authority by which cable companies can achieve cross-platform functionality in Internet delivery. DOCSIS standards are applied to both ends of the connection: the CM (Cable Modem) and the CMTS (Cable Modem Termination System). The standards are set and verified by CableLabs, a non-profit industry consortium. CableLabs also refers to the DOCSIS specification “CableModem” or “CableModem/DOCSIS”.
Television signals are transmitted at warp speed today — at least so it seems. Data is sent and received via cables, and the whole process can take place in the blink of an eye. These days, TV cables can provide Internet access as well. Every data transfer process that is widely used needs specifications and standards, and CATV is no different. The standards developed by CableLabs, an industry-wide nonprofit research firm, are called DOCSIS, an acronym that stands for Data Over Cable Service Interface Specification. The first DOCSIS, Version 1.0, appeared in 1997. The current version, 2.0, was released in 2002. Version 2.0 includes necessary updates to include IP telephony and other operations that take place in real time. DOCSIS Version 3.0 is under development. Industry experts expect it to include best practices for using cutting-edge technology to provide users with what is known as channel bonding, a melding of send-and-receive functions that can take place during the same transm
Related Questions
- Why does PenTeleData require all commercial Cable/DOCSIS Broadband Internet Access users to set their equipment to obtain an IP address automatically (DHCP)?
- I want to upgrade to High-Speed Warp or High-Speed Extreme from High-Speed can I swap my existing modem for a DOCSIS modem?
- Where can I purchase a DOCSIS modem and which ones are compatible with the Orange County Cox High Speed Internet system?
