Harmonic ProView 7000 User Manual page 205

Glossary

Numerics A B
 
DVB-S2
Digital Video Broadcasting - Satellite - second generation.
E
ECM
Entitlement Control Message. An ECM is a message generated by the conditional access system
( ). The ECM contains an encrypted version of the control word that only authorized
CAS
subscribers can decrypt. See also
ECM Stream
The data flow between ECMG and a multiplex involved in the generation of a specific
ECMG
ECM Generator. A
EDH
Error Detection and Handling
EIA
Electronic Industries Alliance. A U.S. trade organization that was once responsible for establishing
hardware interface standards. The EIA broke apart into several more specialized standards
development organizations (SDOs) including the CEA and TIA. This break-up resulted in the
renaming of a number of key standards (such as CEA-708 and TIA-232) which has caused
industry confusion. Harmonic is careful to use the current and correct names of relevant
standards.
EIT
Event Information Table. This table provides information in chronological order for the events
contained within each service.
elementary stream
The basic raw output of either video or audio compression, not intended for physical
manifestation beyond the creating device. Each elementary stream will be carried in a sequence
of packets with a single PID within the eventual TS.
PES
embedded controller
A processing unit located within each
component.
EMM
Entitlement Management Message. An EMM is a message generated by the conditional access
system (
CAS
descramble a program. The EMM is used with the ECM. See also
© 2011 Harmonic Inc.
C D E F
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Q R S T
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EMM
application that produces the
CAS
). The EMM authorizes an individual subscriber or group of subscribers to
G H I J
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U V W
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.
messages.
ECM
that is responsible for the control of that
component
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L M N O
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Y
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ECM
.
ECM
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