Model 372A Datasheet

50690-0419, Issue 1
Key Features
• Dante audio-over-Ethernet technology
• One talk and two listen channels
• Supports dynamic and electret microphones
• 5-pin female XLR headset connector
• 3.5 mm 4-conductor TRRS headset connector
• Call receive and display function
• Excellent audio quality
• Uses STcontroller for configuration
• AES67 and Dante Domain Manager™ (DDM) support
• Power-over-Ethernet (PoE) powered
Introduction
The Model 372A Intercom Beltpack is a highly compact user-
worn device that combines a single channel of talk and two
channels of listen. The unit begins with the features offered
by traditional analog party-line (PL) 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 372A
and other compatible Studio Technologies’ beltpack units can
be used to create party-line intercom applications with help
from an external Dante-enabled audio matrix such as the Stu
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dio Technologies’ Model 5422 Dante Intercom Audio Engine.
Alternately, Model 372A units can be used “point-to-point” or
interfaced with Dante-compatible matrix intercom systems.
Having one talk and two listen channels may seem unconven
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tional. But it can be ideal for many “real-world” applications.
Often an intercom user is primarily listening and non-verbally
responding to requests made by producers, directors, or stage
managers. Typically, the Model 372A will be configured to be
part of one talk-and-listen party-line intercom channel. During
the time that an event is taking place the listen function will
serve a much more important role; the talk function will rarely
be utilized. However, the second listen channel will often be
important. Typically, it will be designated as a program-listen
or “show audio” channel. The two listen channels, along with
the ability to receive and display call signals, allow the Model
372A to very effectively support production personnel in a
compact and cost-effective manner.
Only a single Power-over-Ethernet (PoE) connection is required
for operation. Key user features can be easily configured using
the STcontroller software application. Configurable parameters
include electret microphone powering, microphone preamplifier
gain, talk button operation, and headphone channel assignment.
Features include integrated sidetone, call signal receive display,
and remote mic kill (“talk off”). The range of capabilities, along
with the excellent audio quality provided by the digital audio
signal path, offers a unique and powerful user experience.
Setting up and configuring a Model 372A is simple. An ether
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CON® RJ45 receptacle is used to interconnect with a standard
twisted-pair Ethernet port associated with a local-area network
(LAN). This connection provides both power and bidirectional
digital audio. The Model 372A is compatible with both broad-
cast and “gaming” headsets.
A broadcast or intercom-style headset with a dynamic or
electret (DC-powered) microphone can be interfaced with
the Model 372A using a 5-pin XLR connector. The Model
372A also directly supports connection of earbuds or gaming
headsets that utilize a 3.5 mm 4-conductor TRRS plug. These
moderately priced devices, commonly associated with mobile
phones or personal computers, are often of high-quality and
may be preferred for some applications. With the Model 372A’s
moderate price and ability to support a broad range of headset
devices the overall cost of deploying an intercom system can
often meet budget goals.
Model 372A Intercom Beltpack
Featuring Dante® Technology