Dante Configuration - Studio Technologies 373A User Manual

provided to support connection of a monaural broad-
cast- or intercom-style communications headset. A 3.5
mm 4-conductor TRRS jack allows a stereo computer
gaming headset to be directly connected. The Model
373A's two headset connectors are essentially elec-
trically wired in parallel. (Only the right-channel head-
phone output is connected to Headset B.) As such,
only one headset should be connected at one time.
Headset A
The Model 373A provides a 4-pin male XLR connec-
tor that interfaces with the microphone and head-
phone connections of a monaural single- or dual-ear
intercom- or broadcast-style headset. The connector
is labeled Headset A. Refer to Figure 2 for connec-
tion details. The microphone input connections are
compatible with most unbalanced dynamic or electret
(low-voltage DC-powered) microphones. A balanced
dynamic microphone should, in most cases, also
function correctly if its signal – (low) is connected
to Model 373A's mic in –/shield/screen connection.
No support is provided for microphones that require
P12 or P48 phantom power.
Headset B
The Model 373A also allows direct connection
of stereo gaming headsets that are ubiquitous in
the personal computer world. The 3.5 mm 4-con-
ductor TRRS jack, labeled Headset B, is compatible
with the CTIA™/AHJ configuration standard which
has the headphone left channel on the tip connection,
the headphone right channel on the ring 1 connection,
common on the ring 2 connection, and the microphone
on the sleeve connection. Compatible headsets are
readily available, typically described as personal
computer or gaming headsets. The microphones used
in these headsets are electret type which require a
low-voltage DC source for operation. The Model 373A
Figure 2. Headset A connection pinout chart
Issue 2, June 2023
Page 8
Model 373A
INTERCOM BELTPACK
Figure 3. Headset B connection pinout chart
is able to provide this power and requires only that the
appropriate setting in STcontroller be selected. Refer
to Figure 3 for a detailed description of the compatible
TRRS plug.

Dante Configuration

For audio to pass to and from the Model 373A requires
that several Dante-related parameters be configured.
These configuration settings will be stored in non-vol-
atile memory within the Model 373A's circuitry. Config-
uration will typically be done with the Dante Controller
software application which is available for download
free of charge at audinate.com. Versions of Dante
Controller are available to support Windows
OS X operating systems. The Model 373A uses the
®
Ultimo 2-input/2-output integrated circuit to implement
the Dante architecture. One Dante transmitter (output)
channel and both Dante receiver (input) channels are
utilized.
The Dante transmitter (output) channel associated
with the Model 373A's Dante interface must be as-
signed to the desired Dante receiver (input) channel.
This achieves routing the Model 373A's one talk out-
put audio channel to the device (or devices) that will
be "listening" to it. Within Dante Controller a "subscrip-
tion" is the term used for routing a transmitter flow (a
group of output channels) to a receiver flow (a group
of input channels). The number of transmitter flows
associated with an Ultimo integrated circuit is limited
to two. These can either be unicast, multicast, or a
combination of the two. If the Model 373A's Dante
transmitter (output) channel needs to be routed using
more than two flows it's possible that an intermediary
device, such as the Studio Technologies' Model 5422A
Dante Intercom Audio Engine, can be used to "repeat"
the signals. (Use the Model 5422A's pass-thru group
configuration mode to provide this resource.)
and
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Model 373A User Guide
Studio Technologies, Inc.