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Options and Upgrades
3.4
Additional Audio and Linear PCM Option
(M2/EOM2/AUDLIN)
3.4.1
Overview
The Additional Audio option module supplements the audio encoding
functionality of the Encoder. This module supports audio standards MPEG-1
(layer 2), Dolby Digital (AC-3), Linear PCM, Dolby Digital (AC-3)
Pass-through and Dolby E Pass-through. The module can take in audio as
either stereo analogue or digital AES/EBU (on left channel only) via a
15-way D-type connector provided on its rear panel.
Alternatively, any two of the four pairs of embedded AES/EBU channels
extracted from the video can be routed to the module for encoding. This
option supports all the standard bit-rates and encoding modes associated
with each compression standard.
The Audio menu associated with this option is described in Chapter 4,
Operating the Equipment Locally, Section 4.9. In the Audio set-up menu
additional options are displayed for Audio XA and Audio XB, where X is the
option slot number where the module is fittted.
Refer to Annex G, Audio Modes for details of Encoder locking to ensure
correct performance.
3.4.2
Assembly
Rear Panel
Analogue Composite Video
Serial Digital Interface
Audio Input
Mono 1 / Stereo 1 Right
Mono 2 / Stereo 1 Left
Mono 3 / Stereo 2 Right
Mono 4 / Stereo 2 Left
NOTE...
The AES/EBU reference signal is provided for backwards compatibility only. When using E57xx
Encoders use the reference signal provided by the Base Board.
Figure 3.1: Additional Audio and Linear PCM Option (M2/EOM2/AUDLIN)
Page 3-6
Encoder
COMP VIDEO
ASI OUT 1
SDI IN
ASI OUT 2
AUDIO IN
ASI OUT 3
Additional Audio
Option
Pins 3, 10
Pins 1, 9
Pins 6, 13
Pins 4, 12
Instruction Manual: evolution 5000 E5710 and E5720 Encoder
Output Transport Stream
Output Transport Stream
Output Transport Stream
AES/EBU Digital A
Pins 1, 9
AES/EBU Digital B
Pins 4, 12
Additional Audio
Option
AES/EBU reference
Pins 7, 15
Digital Audio Inputs
ST.TM.E10074.1
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