Asb Audio Switching Boards; Overview; Rules For System Setup - AMX Enova DGX 100 Series Hardware Reference Manual

ASB Audio Switching Boards

Overview

This chapter pertains to the following Enova DGX Audio Switching Board (ASB) sets:
FG1061-716
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FG1061-732
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FG1061-764
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Enova DGX Audio Switching Boards (ASB) work in conjunction with HDMI, 4K HDMI, DVI, DXLink Fiber, DXLink Twisted Pair,
and DXLink Twisted Pair 4K. Audio Switching Boards must be installed in the expansion board slots on the rear of the Enova
DGX 100 Series enclosure. Each board provides eight balanced/unbalanced stereo audio line-level signals.
Audio Switching Boards support audio-only switching and switching as embedded audio on standard video input and
output boards. They also support using either type of switching from the same source device to different destination
devices. In addition, the embedded audio can be digitally processed (e.g., input gain, volume, equalizer).
NOTE: Audio Switching Boards can only be purchased in board sets and must be installed in specific expansion board slots
as an input and output pair, or pairs when used in an Enova DGX 6400

Rules for System Setup

Audio Switching Boards must be installed as pairs. They will not work unless both an input and an output board are

installed in the same enclosure (if the enclosure is an Enova DGX 6400, two input and two output boards are
required).
When adding ASB Boards to an enclosure, be sure to use the correct board set designated for the enclosure size

(see "Applicability" above).
Enova DGX 6400 Audio Switching Boards must be installed in the expansion board slots (see FIG. 74 on page 165).
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Individual connectors on Audio Switching Boards can be configured for digital signal processing (see page 172).
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Audio signals can be routed from any of the standard video input board connectors (embedded audio) or from
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any of the terminal block connectors (audio only) on the Audio Switching Input Board to: (1) any of the standard
video output board connectors, (2) any of the terminal block connectors on the Audio Switching Output Board, or
(3) a combination of standard video output connectors and terminal block connectors.
Audio Switching Boards, Dante Audio Switching Boards, and Audio Insert/Extract Boards are not compatible. Do

not install mixed types of expansion boards in the same enclosure. If two types of boards are present, the audio
subsystem is disabled.
For information on routing of audio signals (including the down-mixed audio input) using these boards, see page 171; for
information on digital signal processing of the audio, see page 172.
IMPORTANT: Adding Audio Switching Boards (ASB) to an Enova DGX 100 Series Switcher changes the way that audio
signals are routed. With embedded audio, audio transported on a video signal, the audio must originate as 2 channel L-
PCM. On the ASB external connectors, only 2 channel analog stereo audio from 2 channel L-PCM audio is supported.
All other audio formats are muted before the signals are routed to output connectors (including both standard video
outputs and ASB external output connectors), with the exception of one audio input signal (down-mix audio input) that
can be routed to any or all outputs. All audio signals from any of the Switcher's output connectors (except down-mix
audio routed outputs) are formatted as 2 channel L-PCM. For most users, this is the desired format.
If you need a format on a particular input or output connector that is not supported by the Audio Switching Boards (in
addition to the down-mix audio input), change the audio routing method from Switched to Embedded in the System
Configuration interface's Audio Routing options (page 195).
Enova Digital Media Switchers - Hardware Reference Manual
Audio Switching Board Set for the Enova DGX 800/1600 (contains 2 boards)
Audio Switching Board Set for the Enova DGX 3200 (contains 2 boards)
Audio Switching Board Set for the Enova DGX 6400 (contains 4 boards)
ASB Audio Switching Boards
164