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DOCSIS
URL: http://www.cablemodem.com/
Cable Modem Standards and Specifications
J-series - Transmission of television, sound program and other multimedia
signals
Cable-Modem.net -- The Basics of Broadband
The CableLabs Cable Modem project, also known as
DOCSIS (Data Over Cable Service Interface Specification), defines interface
requirements for cable modems involved in high-speed data distribution over
cable television system networks. The CableHome project is developing the
interface specifications to extend cable-based services to network devices
within the home. The project will address issues such as device
interoperability, Quality of Service, and network management.
Cable modems can operate at higher speeds than
regular modems because they are connected via coaxial cable instead of a phone
line. Coax has much higher bandwidth than telephone cable, which is limited to
3 kHz. In North America Cable modems adhere to the Data Over Cable Service
Interface Specification (DOCSIS) standard, also released as ITU-T J.112. In
Europe, both J.112 and a competing standard called EuroModem are used.
Keywords:
Cable, Modem, high speed, physical layer, Access Technology, CATV,
Home networking
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