Harmonic ProView 7000 User Manual page 201

Glossary
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Numerics A B
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CP
Crypto Period. A parameter specifying the period during which data is scrambled with a particular
Control Word ("key").
CPE
Customer Premises Equipment.
crosstalk
The interference of a signal from an adjacent signal.
CRT
Cathode Ray Tube.
Cue Tone
A sequence of audio tones (typically DTMF tones) used to prompt an action.
CW
Control Word. A value that the
CWG
Control Word Generator. Generates the encryption key.
D
data link
The continuous flow of information from one location to another
data stream
The continuous flow of information from one location to another.
datacast
A system that inserts data into an MPEG-2
download and recovery at the receiver. The data can be related to the video/audio elementary
streams.
datagram packing
Datagram packing places datagram sections back-to-back within the payloads of TS packets.
Adaptation field stuffing and section stuffing are not performed, and datagrams are not aligned to
the beginning of the
datagram section
An MPEG-2 section that consists of a datagram header, payload, and a checksum or cyclic
redundancy check (CRC). The maximum size of a section is 4096 bytes with a variable size
, depending on the type of data.
© 2011 Harmonic Inc.
C D E F
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Q R S T
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CAS
payload.
TS packet
G H I J
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U V W
   
generates to scramble the program data stream.
Transport Stream
201
L M N O
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Y
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and enables high bit-rate data
ProView 7000 v.2.4, Rev. A
P
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header