DOCSIS

from The Free On-line Dictionary of Computing (8 July 2008)

Data Over Cable Service Interface Specification
Data Over Cable Systems Interface Specifications
DOCSIS

   <communications, networking> (DOCSIS) {ITU}-approved interface
   requirements for {cable modems} involved in high-speed data
   distribution over a {cable television} network.  DOCSIS
   compatible equipment uses a 6 MHz {carrier} band for
   {downstream}, using 64 and 256 {QAM} (ITU Annex B), and {QPSK}
   and 16 QAM for {upstream}, allowing up to 36 and 10 Mb/s,
   respectively for downstream and upstream channels.

   CableLabs FAQ (http://cablemodem.com/FAQs.html).

   (2001-07-10)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

DOCSIS
       Data Over Cable System Interface Specification