beautypg.com

Dsng systems, Overview, 2 dsng systems – TANDBERG E5714 User Manual

Page 14: And 16qam, Composite video decoder, ca, Figure 1.5: typical dsng encoder configuration

background image

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-converter

and High Power

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

AUTHORIZED

LOCK

BER STATUS

MULTIFUNCTIONAL DISPLAY

ALTEIA

Alteia

Satellite Receiver

This manual is related to the following products: