Datasheet

Studio Technologies, Inc. Model 371A Intercom Beltpack, Issue 2, Page 3
Model 371A Specifications
Power Source:
Power-over-Ethernet (PoE): class 1 (very low power, ≤3.84 watts)
per IEEE® 802.3af
Network Audio Technology:
Type: Dante audio-over-Ethernet
AES67-2013 Support: yes
Dante Domain Manager (DDM) Support: yes
Bit Depth: up to 24
Sample Rate: 48 kHz
Number of Transmitter (Output) Channels: 2
Number of Receiver (Input) Channels: 2
Dante Audio Flows: 4; 2 transmitter, 2 receiver
Network Interface:
Type: 100BASE-TX, twisted-pair Ethernet, Power-over-Ethernet (PoE)
supported
Data Rate: 100 Mb/s (10 Mb/s and 1000 Mb/s “GigE” Ethernet not
supported)
Audio Channels: 2 talk, 2 listen
Microphone Input:
Compatibility: dynamic or electret (low-voltage DC-powered)
microphones
Type: unbalanced
Electret Microphone Power: 5 volts DC via 2.21 k resistor, selectable
on/off
Gain: 22, 30, 42, or 48 dB, selectable, ref. –60 dBu input to Dante
output (–20 dBFS nominal)
Frequency Response: 50 Hz to 10 kHz, –3 dB
Distortion (THD+N): <0.02%
Dynamic Range: 75 dB
Compressor:
Threshold: 1 dB above nominal level (–19 dBFS)
Slope: 2:1
Status LED: compressor active
Headphone Output:
Type: single-channel (sum (combination) of audio input 1 and audio
input 2)
Compatibility: intended for connection headsets with nominal
impedance of 50 ohms or greater
Maximum Output Voltage: 3.8 Vrms, 1 kHz, 150 ohm load
Frequency Response: 20 Hz to 10 kHz, –3 dB
Distortion (THD+N): <0.002%
Dynamic Range: >100 dB
Call Function:
Signaling Method: 20 kHz, ±800 Hz, within audio channels
Call Send Level: –20 dBFS
Call Receive Level: –27 dBFS minimum
Connectors:
Headset: 4-pin male XLR (Associated headset requires cable-
mounted 4-pin female XLR connector wired with pin 1 mic –/shield/
screen; pin 2 mic +; pin 3 headphone –; and pin 4 headphone +)
Ethernet: Neutrik NE8FBH etherCON RJ45 receptacle
USB: type A receptacle (located inside l 371A’s enclosure and used
only for application firmware updates)
Configuration: requires Studio Technologies STcontroller software
application, version 1.06.00 and later (STcontroller is compatible with
Windows version 7 and later)
Environmental:
Operating Temperature: 0 to 50 degrees C (32 to 122 degrees F)
Storage Temperature: –40 to 70 degrees C (–40 to 158 degrees F)
Humidity: 0 to 95%, non-condensing
Altitude: not characterized
Dimensions (Overall):
3.6 inches wide (9.2 cm)
1.6 inches high (4.0 cm)
4.8 inches deep (12.6 cm)
Mounting: intended for portable applications; contains integral belt
clip; optional MBK-01 Mounting Bracket Kit allows Model 371A to be
permanently mounted
Weight:
0.6 pounds (0.3 kg)
Specifications subject to change without notice.
Studio Technologies, Inc.
Skokie, Illinois USA
© by Studio Technolog
ies, Inc., July 2019
studio-tech.com
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 efficient
interconnection with the associated data network. To
support PoE power management, 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 connec
-
tor, 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 capabilities remain
up to date.