Studio Technologies Model 391 Dante Alerting Unit

About: Studio Technologies Model 391 Dante Alerting Unit

The Model 391 Dante® Alerting Unit builds on the limited capabilities of the "beacon" or "strobe" devices that are ubiquitous with analog party-line (PL) intercom systems and adds a broad range of new and enhanced features. The Model 391 responds to audio "call" signals that are present in the unit's Dante audio input channels. With an 18-23 kHz detection range, it will detect tone call signals that are commonly utilized in both legacy analog and modern digital PL intercom circuits.

Upon detecting a call signal the Model 391 can provide a visual indicator, enable an audio sounder output, and even activate an analog line output. Each of the Model 391's alerting resources can be individually optimized to meet the unique requirements of many applications. The STcontroller personal computer application is used to select from a wide range of operating choices. The compact, portable unit is compatible with Dante audio-over-Ethernet installations and requires only an Ethernet connection with Power-over-Ethernet (PoE) capabilities for operation. Typically applications will find the Model 391 applicable for use in theater, sports, and broadcast facilities.

Key Features

• Dante audio-over-Ethernet technology
• Compatible with Studio Technologies' Dante beltpacks
• Responds to standard 20 kHz call signals
• Visual and audio call indications
• General-purpose analog line output
• Configured using STcontroller application
• Power-over-Ethernet (PoE) powered

Specifications:

Power Source:
Power-over-Ethernet (PoE): class 1 (very low power, ≤3.84 watts)

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 Receiver (Audio Input) Channels: 2
Dante Audio Flows: 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)

Call Activation:
Method: in-band tone, receiver channel 1, receiver channel 2, or receiver channel 1 and 2, selectable
Tone Characteristics: 18-23 kHz, nominal
Minimum Level: –25 dBFS, nominal
Detect Time: 10 milliseconds, minimum

Visual Alert:
Type: qty 5, red/green/blue (RGB) LEDs
Color: adjustable, 20 standard colors and Windows® color picker
Intensity: adjustable
Action: adjustable

Audio Alert:
Type: electromagnetic sounder
Action: adjustable
Frequency: 2.7 kHz, nominal, square wave
Level: adjustable, 2 level ranges
Maximum Level: 85 dB SPL @ 3.9 inches (10 cm)
Action: adjustable

Line Output:
Type: analog, electronically balanced, capacitor coupled, intended to drive balanced or unbalanced loads of 2 k ohms or greater
Source Impedance: 200 ohms
Nominal Level: 0 dBu, reference –20 dBFS
Maximum Level: +20 dBu, 0 dBFS input, measured at 1 kHz
Dynamic Range: >106 dB, A-weighted
Distortion (THDS+N): 0.0011% (–99 dB), measured at –1 dBFS, 22 kHz bandwidth
Frequency Response: +0/–1.5 dB, 20 Hz to 20 kHz

Connectors:
Line Output: 3-pin male XLR
Ethernet: Neutrik etherCON RJ45
USB: type A receptacle (located inside Model 391's enclosure and used only for updating firmware)

Configuration: requires Studio Technologies' STcontroller personal computer application, version 1.07.00 and later
(STcontroller compatible with Windows version 7 and later)

Dimensions (Overall):
3.4 inches wide (8.6 cm)
3.5 inches high (8.9 cm)
5.1 inches deep (13.0 cm)

Mounting: intended for tabletop applications; optional MBK-01 Mounting Bracket Kit allows Model 391 to be permanently mounted

Weight: 1.0 pound (0.46 kg)