Manual

Model 370A User Guide Issue 2, August 2019
Studio Technologies, Inc. Page 5
MODEL 370A
INTERCOM BELTPACK
Introduction
The Model 370A Intercom Beltpack begins
with the features offered by traditional 2-
channel party-line intercom user devices
and adds a range of new capabilities,
along with the advanced performance and
flexibility that Dante® audio-over-Ethernet
provides. Over a standard IP network,
multiple Model 370A units can be used in
party-line (PL) intercom applications with
help from an external Dante-enabled audio
matrix such as the Studio Technologies
Model 5422 Dante Intercom Audio Engine.
Alternately, units can be used “point-to-
point” or interfaced with Dante-compatible
matrix intercom systems.
Only a single Power-over-Ethernet (PoE)
connection is required for operation. Key
user features can be easily configured us-
ing the STcontroller software application.
Configurable parameters include electret
microphone powering, microphone pre-
amplifier gain, talk button operation, and
headphone channel assignment. User
features include integrated sidetone, call
function, and remote mic kill (“talk off”).
The wide range of capabilities, along with
the excellent audio quality provided by the
digital audio signal path, offers a unique
and powerful user experience.
Set up and configuration of the Model 370A
is simple. An etherCON® RJ45 receptacle
is used to interconnect with a standard
twisted-pair Ethernet port associated with
a local-area network (LAN). This connec-
tion provides both power and bidirectional
digital audio. A broadcast or intercom-style
stereo or monaural headset with a dynamic
or electret (DC-powered) microphone
interfaces with the unit using a 5-pin XLR
connector.
The STcontroller software application is
used to select the unit’s operating param-
eters. Two talk pushbutton switches can
be configured for optimal operation. Two
push-in/push-out (“pop out”) rotary con-
trols make it easy to set and maintain the
desired headphone output level. The Model
370A’s enclosure is made from an alumi-
num alloy which offers both light weight
and ruggedness. A stainless steel “belt
clip,” located on the back of the unit, allows
direct attachment to a user’s clothing.
The audio quality of the Model 370A’s
audio channels is excellent, with low distor-
tion, low noise, and high headroom. Care-
ful circuit design and rugged components
ensure long, reliable operation. A wide
range of applications can be supported,
including sports and entertainment TV and
radio events, streaming broadcasts, corpo-
rate and government AV installations, and
post-production facilities.
Figure 1. Model 370A Intercom Beltpack top and bottom views