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Introduction to the Basic Encoder
Page 1-6 Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder
ST.TM.E10076.3
The E5714 and E5740 contain the same high performance encoder. The
E5714 is a 1U chassis housing the encoder and a QPSK satellite modulator.
The E5740 is a 2U chassis housing the encoder, and a satellite modulator
capable of QPSK, 8PSK
2
and 16QAM
3
modulation.
The Encoder has one card, containing a single video encoder, two stereo
audio encoders (dual standard MPEG-1 (layer 2)/Dolby Digital (AC-3)
4
),
composite video decoder, CA
5
, data input and general purpose VBI
extraction and encoding circuitry. It also contains either a satellite
modulator or an OFDM modulator.
High quality 4:2:0 or 4:2:2
6
video encoding is ensured by the inclusion of
digital noise reduction techniques
7
and many other proprietary algorithms
as well as standard MPEG compression techniques. Fully Exhaustive motion
estimation is also used.
Video can be input to the unit in serial digital component (SDI) format or
composite analogue (PAL/NTSC). There is also a logo overlay facility
allowing broadcasters to trademark material.
The audio functionality supports multiple sampling frequencies, bit-rates
and coding modes. Audio can be input in balanced analogue, digital
AES/EBU input as a discrete channel or embedded on serial digital video.
Various coding standards are supported, including Linear PCM. Additional
audio channels can be accommodated by purchasing the option module
M2/EOM2/AUDLIN.
Unit functionality can be further extended with option modules (see
Chapter 3, Options and Upgrades).
1.2.2 DSNG Systems
Overview
Figure 1.5: Typical DSNG Encoder Configuration
2
8PSK is only available when software option M2/ESO2/SM38PSK is purchased.
3
16QAM is only available when software option M2/ESO2/SM316QAM is purchased.
4
Dolby Digital (AC-3) is only available when software option M2/ESO2/AC3 is purchased.
5
CA relates to RAS and BISS. RAS and BISS are only available when software options M2/ESO2/RAS and
M2/EDCOM2/BISS are purchased. A E57xx Encoder may be fitted with both RAS and BISS options but only one
scrambling format can be used at any one time. BISS is available from Build version 2.1.0 but BISS- is not supported
before Build version 2.2.0.
6
4:2:2 is only available when software option M2/ESO2/422 is purchased.
7
Noise reduction is only available when software option M2/ESO2/NR is purchased.
Tx
Rx
Up-link equipment
(including Up-converte
r
and High Powe
r
Amplifier)
Down-link equipment
(including Low Noise Block
and Down-converter)
IF
VIDEO
AUDIO
ASYNC DATA
SYNC DATA
Encoder
Modulator
VIDEO (ANALOGUE)
VIDEO (DIGITAL)
AUDIO
SYNC DATA
ASYNC DATA
DSNG Encoder
ALARM
REMOTE CNTRL
AUTHOR IZED
LOCK
BER STATUS
M
U
LTIF
U
N
C
TI
O
NAL DI
S
PLAY
ALTEIA
Alteia
Satellite Receiver