Manual

Model 371A User Guide Issue 2, August 2019
Studio Technologies, Inc. Page 7
MODEL 371A
INTERCOM BELTPACK
Configuration Flexibility
A highlight of the Model 371A is its ability
to be easily configured to meet the needs
of specific users and applications. All
configuration choices are made using the
STcontroller software application that com-
municates with the Model 371A by way
of an Ethernet network connection. Con-
figurable parameters include microphone
power and preamplifier gain, sidetone au-
dio operation, and talk button operation.
The microphone input can be selected
for compatibility with dynamic or elected
(DC-powered) microphones. The gain of
the microphone preamplifier can be se-
lected from among four choices. These
allow compatibility with the variety of mi-
crophones that are part of broadcast and
intercom headsets.
A unique Model 371A feature is the ability
to individually configure the way in which
the two talk pushbutton switches function;
four choices are available. For standard
intercom beltpack operation it’s typical
to select Push to Talk, Latching, or Push
to Talk/Tap to Latch. For situations where
only monitoring of an intercom channel is
desired a Disabled mode is available.
Ethernet Data and PoE
The Model 371A connects to an Ethernet
data network using a standard 100 Mb/s
twisted-pair Ethernet interface. The physi-
cal interconnection is made by way of
a Neutrik® etherCON RJ45 receptacle.
While compatible with standard RJ45
plugs, etherCON allows a ruggedized and
locking interconnection for harsh or high-
reliability environments. An LED displays
the status of the network connection.
The Model 371A’s operating power is
provided by way of the Ethernet interface
using the 802.3af Power-over-Ethernet
(PoE) standard. This allows fast and ef-
ficient interconnection with the associated
data network. To support PoE power man-
agement, the Model 371A’s PoE interface
reports to the power sourcing equipment
(PSE) that it’s a class 1 (very low power)
device.
Future Capabilities and
Firmware Updating
The Model 371A was designed such that
its capabilities and performance can be
enhanced in the future. A USB connector,
located on the unit’s main circuit board
(underneath the unit’s cover), allows the
application firmware (embedded software)
to be updated using a USB flash drive.
The Model 371A uses Audinate’s Ultimo™
integrated circuit to implement the Dante
interface. The firmware in this integrated
circuit can be updated via the Ethernet
connection, helping to ensure that its ca-
pabilities remain up to date.
Getting Started
What’s Included
Included in the shipping carton are a
Model 371A Intercom Beltpack and a
printed copy of this guide. As a device that
is Power-over-Ethernet (PoE) powered, no
external power source is provided. In most
applications an Ethernet switch with the
required PoE capability will be utilized.
Connections
In this section signal interconnections
will be made using the two connectors