6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
37
Frames and Modules
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Figure 3-2.
ASM Series Modules
Module Edge Controls and Indicators
SMPTE 272M stipulates that embedded audio must be packaged into
groups, and that each group may be comprised of a maximum of two
digital audio channels in the AES format. In turn, each AES channel is
composed of two monaural audio channels. Thus, one audio group may
contain up to four monaural audio channels. For purposes of this
manual, the main AES channels are designated as 1 and 2 and the
sub-channels as A and B. Therefore, an audio group can be thought of as
containing channels 1A, 1B, 2A, and 2B.
1 2 3 4
VID_PRES
AUD_PRES
AUD_ERR
NO_LOCK
MAIN
SWAP
MONITOR/
REMOTE
SWAP
DEMUX
DACS
AUDIO
GROUP
SELECT
SERIAL
VIDEO
ANALOG
OUTPUTS
1A
1B
2A
2B