Studio Technologies Dante 5422A, Руководство пользователя

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Issue 3, December 2022 Model 5422A User Guide
Page 12 Studio Technologies, Inc.
Model 5422A
DANTE INTERCOM AUDIO ENGINE
pinout have become a broadcast DC power standard
and should be familiar to many technical personnel.
Because the Model 5422A contains no power on/off
switch it will begin operation as soon as a DC power
source is connected.
As previously mentioned, both an AC mains source
and a DC source can be connected at the same time.
If this is the implementation then the AC mains source
will always power the Model 5422A with the DC source
serving as a “hot standby.” Only if the AC source fails
will the unit draw power from the DC source. This will
occur automatically with no interruption of Model 5422A
operation. In this “standby” mode (when an AC mains
source is connected) the Model 5422A draws less than
110 microamperes (uA) from a 12 volts DC input.
Dante Configuration
For audio signals to pass to and from the Model 5422A
requires that a number of Dante-related parameters be
configured. These configuration settings are stored in
non-volatile memory within the Model 5422A’s Dante
network interface circuitry. Configuration will typically
be done with the Dante Controller software application,
available for download free of charge at audinate.com.
Versions of Dante Controller are available to support
several operating systems. Refer to Appendix B for a
list of the Model 5422A configuration default values
that are associated with Dante Controller.
The Model 5422A’s Dante interface is compatible with
the Dante Domain Manager (DDM) software appli-
cation. Refer to DDM documentation, available from
Audinate, for details on which Model 5422A parameters
may need to be configured.
Audio Routing
As previously discussed, the Model 5422A is available
in two versions. The Model 5422A-01 has 32 Dante
audio input and 32 Dante audio output channels. The
Model 5422A-02 has 64 Dante audio input and 64
Dante audio output channels. The latter is organized
into two 32-channel groups.
Some or all of the Model 5422A-01’s 32 Dante receiver
(input) channels will be routed (Dante subscribed) to
Dante transmitter (output) channels on associated
equipment. Some or all of the Model 5422A-01’s 32
Dante transmitter (output) channels will be routed to
the Dante receiver (input) channels on associated
equipment. These routes (Dante subscriptions) will
connect signals from related Dante devices to and
from the Model 5422A’s audio processing resourc-
es. Extensive configuration choices allow the Model
5422A’s audio channels to be organized into various
group sizes. Each group can be configured for how
it will function. For example, Dante beltpacks can be
routed to inputs and outputs on a Model 5422A-01
group to create one or more “virtual” party-line circuits.
Details regarding configuring groups sizes and group
functions are covered in later sections.
As the Model 5422A-02 supports a total of 64 chan-
nels (two groups of 32-channels each) the amount of
audio channel routing required can be up to twice that
of a Model 5422A-01. Since there are 64 input and 64
output audio channels up to 128 routes (Dante sub-
scriptions) may need to be established. The reason that
all the channels associated with a Model 5422A may
not need to be routed is simple. Most applications will
be designed to have unused (“spare”) channels that
will allow future expansion and resource re-allocation.
Both versions of the Model 5422A use a Brooklyn
module to implement their Dante functionality. The
number of transmitter flows associated with this mod -
ule is 32 and, as such, no flow limitation will typically
occur. These flows can either be unicast, multicast, or
a combination of the two. Note, however, that when
AES67 mode is enabled in Dante Controller the Dante
transmitter (output) channels will only function in mul-
ticast; unicast is not supported.
Unit Name and Channel Labels
The Model 5422A has a default Dante device name of
ST-5422A- along with a unique suffix. The suffix identi -
fies the specific Model 5422A that is being configured.
The suffix’s actual alpha and/or numeric characters re -
late to the MAC address of the unit’s Brooklyn module.
The default labels (names) of the Dante receiver (input)
and Dante transmitter (output) audio output channels
will depend on the operating mode configuration of
the selected groups. For most operating modes it’s
preferred that the label for a receiver (input) and
a transmitter (output) be identical. (In most cases, an
input has a corresponding output.) For user or appli-
cation clarity, these labels can be revised using either
the Dante Controller application or by way of Model
5422A configuration webpages. Editing channel labels