Ericsson AVP 1000 Reference Manual page 402

Glossary
Downconvert
DPCM
DSNG
DSP
DTE
DTH
DTMF
DVB
DVB SI
DVB-PI
DWDM
Earth
EBU
ECM
EDI
EIA
EIT
Elementary Stream
A-6
The process by which the frequency of a broadcast transport stream
is shifted to a lower frequency range.
Differential Pulse Code Modulation: An audio digitization technique
that codes the difference between samples rather than coding an
absolute measurement at each sample point.
Digital Satellite News-Gathering.
Digital Signal Processor.
Data circuit Terminating Equipment: A communications device that
originates (is the source) or is the end receiving unit (destination) of
signals on a network. It is typically a terminal or computer.
Direct-To-Home. The term used to describe uninterrupted
transmission from the satellite directly to the subscriber, that is, no
intermediary cable or terrestrial network utilized.
Dual-Tone MultiFrequency
Digital Video Broadcasting: A European project which has defined
transmission standards for digital broadcasting systems using
satellite (DVB-S), cable (DVB-C) and terrestrial (DVB-T) medium,
created by the EP-DVB group and approved by the ITU. Specifies
modulation, error correction, etc. (see EN 300 421 for satellite,
EN 300 429 for cable and EN 300 744 for terrestrial).
Digital Video Broadcasting Service Information.
DVB-Professional Interfaces
Dense Wavelength Division Multiplexing. A mechanism to utilize
existing fiber with even more bandwidth by adding extra signals
using other wavelengths/colors
Technical Earth: Ensures that all equipment chassis within a rack
are at the same potential, usually by connecting a wire between the
Technical earth terminal and a suitable point on the rack. This is
sometimes known as a Functional earth.
Protective Earth: Used for electric shock protection. This is
sometimes known as a safety earth.
European Broadcast Union.
Entitlement Control Message.
Ethernet Data Input
Electronics Industries Association (USA).
Event Information Table: Equipment: A component of the DVB-
Service Information (SI) stream generated within an Encoder,
containing information about events or programmes such as event
name, start time, duration, etc.
System: EIT (Present/Following) contains the name of the current
and next event. It may include an optional descriptor (synopsis)
giving brief details of content. EIT (Schedule) is used to produce a
full EPG. The EIT is the only DVB-SI table, which can be encrypted.
A generic term for a coded bitstream, be it video, audio or other.
EN/LZT 790 0023/1 R16A