User Guide

Model 373A User Guide Issue 1, April 2019
Studio Technologies, Inc. Page 13
MODEL 373A
INTERCOM BELTPACK
Operation
At this point everything should be ready
and Model 373A operation can commence.
An Ethernet connection with Power-over-
Ethernet (PoE) capability should have been
made. A monaural headset terminated with
a cable-mounted 4-pin female XLR con-
nector may be plugged into the Headset A
connector. Alternately, a stereo gaming or
computer-type headset will be connected
to Headset B using a 3.5 mm 4-conductor
TRRS plug.
Using the Studio Technologies’ STcontroller
software application, the unit’s configura-
tion should have been selected to meet
the needs of the specific application. The
Model 373A’s Dante configuration settings
should have been selected using the Dante
Controller software application. In this way,
the Model 373A’s audio output channel
(Dante transmitter channel) and two audio
input channels (Dante receiver channels)
should have been routed, by way of Dante
“subscriptions,” to the receiver and transmit-
ter channels on associated Dante-enabled
equipment.
Initial Operation
The Model 373A will start to function as
soon as a Power-over-Ethernet (PoE) power
source is connected. However, it may take
20 to 30 seconds for full operation to com-
mence. Upon initial power-up the three sta-
tus LEDs, located on the bottom panel below
the etherCON RJ45 receptacle, will begin
to light as network and Dante connections
are established. The compressor active LED
might somewhat randomly flash for a brief
period. The green and orange LEDs that illu-
minate the talk pushbutton switch will light as
part of a short test sequence to indicate that
the application firmware (embedded soft-
ware) has started. The mic power LED will
also light for a short interval to indicate that
it is functioning. Once the test sequence has
completed and the Dante connection has
been established full operation will begin.
Ethernet and Dante Status
LEDs
Three status LEDs are located below the
etherCON RJ45 receptacle on the Model
373A’s bottom panel. The LINK ACT LED
will light green whenever an active connec-
tion to a 100 Mb/s Ethernet network has
been established. It will flash in response to
Ethernet data packet activity. The SYS and
SYNC LEDs display the operating status of
the Dante interface and associated network.
The SYS LED will light red upon Model 373A
power up to indicate that the Dante inter-
face is not ready. After a short interval it will
light green to indicate that it is ready to pass
data with another Dante device. The SYNC
LED will light red when the Model 373A is
not synchronized with a Dante network. It
will light solid green when the Model 373A
is synchronized with a Dante network and
an external clock source (timing reference)
is being received. It will slowly flash green
when this specific Model 373A is serving as
the clock master for the network. It’s pos-
sible that up to 30 seconds may be required
for the SYNC LED to reach its final state.
Compressor Active LED
A yellow LED indicator is located on the
bottom panel adjacent to the Headset A con-
nector. Labeled COMP, the LED displays the
status of the microphone preamplifier com-
pressor function. It will light whenever the
input level from the microphone, along with
the configured preamplifier gain, is such that
the dynamic range of the talk signal is being
controlled. It’s perfectly acceptable for this
LED to light intermittently whenever a user
is talking at a normal voice level into the