Data Over Cable Service Interface Specification
Data Over Cable Service Interface Specification
(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.
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