Harmonic ProView 7000 - Page 199

Glossary
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Q R S T U V W Y 
© 2011 Harmonic Inc. 199 ProView 7000 v.2.4, Rev. A
CAM
Acronym for CA Module and is a standardized card which is used to unscramble services.
card
See adapter .
carrier frequency range
For a receiver, the range of valid input signals.
CAS
Conditional Access System. Scrambles the programming material and allows conditional access to
the descrambled information on the basis of subscriber authorization. In consumer applications,
CAS allows access to certain programs on the basis of a monetary exchange. In commercial
applications, CAS allows controlled access to proprietary programs.
CAT
Conditional Access Table. The CAT informs the receiver of conditional access system (CAS)
information, such as the
EMM stream for provisioning the receiver.
CBR
Constant Bit Rate.
CC
Closed Captions or Continuity Counter. Readers are cautioned to avoid use of this abbreviation
unless it is clearly stated in context.
CEA
Consumer Electronics Association.
CEA-608
Line 21 Data Services.
CEA-708
Digital Television (DTV) Closed Captioning.
channel
For NMX, a collection of circuits (video, audio, data, EMM, and ECM Generator) that are related
to each other in the Program Association Table. See also
PAT .
chroma
The color difference component of the video signal. Sometimes termed “chrominance.” See
also
luma .
CIFS
Common Internet File System.