DOCSIS


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DOCSIS

DOCSIS

(Data Over Cable Service Interface Specification) A cable modem standard from the CableLabs research consortium (www.cablelabs.com), which provides equipment certification for interoperability. DOCSIS supports IP traffic (Internet traffic) over digital cable TV channels, and current cable modems are DOCSIS compliant. In 2006, DOCSIS 3.0 added the capability of bonding from four to 32 upstream channels and from four to eight downstream. All bandwidth is shared among neighboring subscribers.

Originally formed by four major cable operators and managed by Multimedia Cable Network System, management of the project was later turned over to CableLabs. See cable modem, EuroDOCSIS, eDOCSIS, CMTS and S-CDMA.

DOCSIS                 SpeedVersion  Year     Down       Up

   1.0    1997   40 Mbps    10 Mbps
   1.1    2001   40 Mbps    10 Mbps
   2.0    2002   40 Mbps    30 Mbps
   3.0    2006   1.2 Gbps  200 Mbps
   3.1    2016   10 Gbps    10 Gbps



Down/Up Discrepancy
In order to prevent a residential customer from supplying content on a website to the general public or providing some other business data service, ISPs often keep upstream (upload) speeds much lower than down. This is a home network cable Internet speed test from Ookla, a company that provides Internet metrics.
References in periodicals archive ?
The completion of five product certifications illustrates the success of a multi-year effort to bring DOCSIS 3.
The BW 3500 is the industry's only CMTS qualified to meet the DOCSIS 2.
Our new cable DOCSIS STB front-end ICs and complementary STB decoders resulted from our renewed commitment to developing leading-edge solutions for the cable set-top marketplace," said Lewis Brewster, executive vice president and general manager of Conexant's Broadband Media Processing business.
Jeremy discussed the new cable synchronization standard, DOCSIS Timing Interface (DTI), and its role in the M-CMTS architecture during the live event that took place entirely on the Web.
By delivering interactive IP video to the home over DOCSIS, cable operators shift bandwidth demand on their networks to take advantage of the innovative features offered by IP video," says principal analyst Michael Arden.
The week of July 17, 2006, CableLabs hosted a week-long interoperability event to bring together suppliers that have been utilizing the specifications to develop DOCSIS 3.
DOCSIS and Euro-DOCSIS are registered trademarks of Cable Television Laboratories, Inc.
Pace Micro Technology (LSE:PIC), a leading digital set-top box provider specializing in the development of emerging technologies, today announced that its new Vegas TDC575 SD-DVR digital set-top box, with an embedded DOCSIS 1.
Also included are forecasts for cable CPE with E-MTA, VoIP-enabled DSL CPE and routers, and DOCSIS standard migration.
The SMC EZ Connect Wireless Cable Modem Gateway (SMC8014WG-CHM) combines DOCSIS 2.