Manual

Model 374A User Guide Issue 3, August 2019
Studio Technologies, Inc. Page 13
MODEL 374A
INTERCOM BELTPACK
instead control the on/off state of the audio
being sent to the headphone output. In this
mode talk audio will never be sent out the
associated Dante transmitter channel. This
is an interesting mode, allowing one or
more Model 374A audio channels to serve
in a “monitor mixer” function. The button
will allow quick on/off control while the ro-
tary level control can remain in its desired
position.
When button 4 has been selected to the
Call mode it will serve as a call enable
button for talk channels 1, 2, and 3; micro-
phone audio will never be sent out Dante
transmitter channel 4. In the Call mode
button 4 will operate in a push-to-activate
manner and whenever it is active and
channels 1, 2, and/or 3 are active a 20 kHz
tone (call signal) will be added to the active
audio paths. It will not display a call signal
that’s present on audio input channel 4.
System – Mic Kill
Choices are Off, Device ID, Global Kill
Command, and Device ID/Global Kill
Command.
The mic kill function allows an enabled
talk channel to be disabled by remote
control. Specifically, it’s possible to re-
motely change all active (on) talk channels
to their off state. This function is sometimes
referred to as a “talk off” function. There
are two means available to remotely dis-
able all active talk channels. The Device
ID method uses the identification com-
mand generated by the Dante Controller
or STcontroller applications as a “trigger”
to disable any active talk channels. The
Global Kill Command can be generated by
applications that incorporate the Studio
Technologies’ proprietary method. This
method utilizes sending a data command
over the Ethernet connection. Select the
desired mic kill configuration from the four
choices. Off simply means that no remote
talk control is supported.
Operation
At this point everything should be ready
and Model 374A operation can commence.
An Ethernet connection with Power-over-
Ethernet (PoE) capability should have been
made. A headset terminated on a 5-pin
male XLR connector should be plugged
into the headset connector.
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 374A’s Dante configuration set-
tings should have been selected using the
Dante Controller software application. In
this way the unit’s four audio output chan-
nels (Dante transmitter channels) and four
audio input channels (Dante receiver chan-
nels) should have been routed, by way of
Dante “subscriptions,” to the receiver and
transmitter channels on associated Dante-
enabled equipment.
Initial Operation
The Model 374A 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 opera-
tion to commence. Upon initial power up
the three status LEDs located on the bot-
tom panel below the etherCON RJ45 re-
ceptacle will begin to light as network and
Dante connections are established. The
green and orange LEDs that illuminate the
four pushbutton switches on the top panel
may initially light randomly and then will
light in a test sequence to indicate that the
application firmware (embedded software)