Studio Technologies Model 5422A-02 Dante Intercom Audio Engine

The Model 5422A provides three Gigabit Ethernet (“GigE”) network interfaces, two which can support redundant Dante operation and a third for accessing the management menu system. To meet the latest interoperability standard the unit's Dante implementation meets the requirements of AES67. Support for the Dante Domain ManagerT (DDM) software application is also provided. An integral web server allows fast and flexible configuration of the unit's audio, networking, and Dante performance. Front-panel indicators, a graphics display, and pushbutton switches provide personnel with direct access to key operating parameters. The Model 5422A can be powered by 100-240 V, 50/60 Hz mains or a source of 12 volts DC. The lightweight enclosure mounts in one space (1U) of a standard 19-inch rack.

Applications
The Model 5422A is compatible with many Dante-compliant devices including the extensive range of intercom beltpacks from Studio Technologies. These include the single-channel/dual-listen Model 372A and Model 373A, the 2-channel Model 370A and Model 371A, and the 4-channel Model 374A. The Model 5422A will also function directly with other Dante-supporting devices such as the Model 348 Intercom Station and Model 391 Dante Alerting Unit. In addition, the Model 5422A can function with matrix intercom systems, audio consoles, and wireless intercom base stations.

Pro Audio Quality and Auto Mix
The Model 5422A supports 24-bit, 48 kHz sampling rate digital audio signals that interface using Dante. The unit's audio circuitry was designed to meet the demands of professional audio applications, far exceeding the sonic quality of “typical” intercom products. All audio processing is performed using high-speed 32-bit programmable logic. This ensures that the audio performance is excellent, providing the expected benefits of minimal distortion, low noise, high headroom, flat frequency response, and extremely low latency.

The Model 5422A's Auto Mix function utilizes a sophisticated FPGA-based algorithm to provide enhanced audio intelligibility. This feature is unique to party-line (PL) intercom applications and offers user's the opportunity to obtain the absolutely finest audio performance. Studio Technologies' is confident that the Model 5422A's Auto Mix capability will meet or exceed the automatic mixer performance of virtually all other hardware- or software-based devices.

Two Versions
Two versions of the Model 5422A are available. The Model 5422A-01 provides one 32-channel audio engine. The Model 5422A-02 provides two 32-channel audio engines for a total of 64 input and output channels. The size and scope of a specific application will dictate which Model 5422A version is applicable. The term “audio engine” was selected to describe a set of audio input, processing, routing, and output resources that can be configured to support specific intercom, talent-cueing, and audio routing and control functions. Unlike general-purpose digital matrix devices, the Model 5422A is optimized to allow direct support for these special broadcast and general intercom applications.

Key Features

• Dante audio-over-IP technology with AES67 and DDM support
• Creates multiple virtual party-line (PL) intercom circuits
• Special audio functions including summing, IFB, and audio switching
• Auto Mix for enhanced audio performance
• Perfect for REMI/At-Home production applications
• Two versions available: one or two 32-channel audio engines
• Three Gigabit Ethernet interfaces support independent redundant Dante and management networks
• Webpage management and USB flash drive software updating
• AC mains and 12 volts DC powering
• Lightweight enclosure, single rack-space (1U) mounting

Technical Specifications

Versions Available
Model 5422A-01: One 32-channel Dante audio engine
Model 5422A-02: Two 32-channel Dante audio engines (64 channels total)
Audio Engine Configuration Options
Group Size, the following group sizes can be selected for each 32-channel audio engine
32 (one group)
24, 8 (two groups)
20, 8, 4 (three groups)
16, 16 (two groups)
16, 12, 4 (three groups)
12, 12, 4, 4 (four groups)
8, 8, 8, 8 (four groups)
8, 8, 8, 4, 4 (five groups)
8, 8, 4, 4, 4, 4 (six groups)
4, 4, 4, 4, 4, 4, 4, 4 (eight groups)
Group Modes
Party-Line w/Auto Mix, Party-Line, Summing Bus w/Auto Mix, Summing Bus, IFB, Audio Switching, and Pass-Thru, selectable by individual group
Receiver (Input) and Transmitter (Output) Channel Level Adjustment: ±20 dB, selectable in 1-dB steps
Audio Performance
Internal Digital Audio Processing
32-bit, fixed
Input-to-Output Audio Processing Latency
<100 uSec
Auto Mix
sophisticated FPGA-based algorithm provides enhanced audio intelligibility for party-line (PL) and summing bus modes
IFB (Talent Cueing) Support
Voice Detect Operation (VOX)
Audio Bandpass
185 to 1300 Hz, -3 dB
Level Threshold
-44 dBFS at 400 Hz
Minimum On Time
385 mSec
Tone Detect Operation (TOX)
Level Threshold
-23 dBFS at 16 kHz; -28 dBFS at 18 kHz; -30 dBFS at 20 kHz
Minimum On Time
80 milliseconds
Interrupt Audio-to-IFB Output Low-Pass Filter
-6 dB at 10 kHz; -28 dB at 16 kHz; -55 dB at 20 kHz
Interrupt Tone-to-IFB Output Rejection Filter
-31 dB at 18 kHz; -46 dB at 20 kHz; -70 dB at 22 kHz
Program Audio Attenuation
0, 10, 15, 20 dB, full mute, configurable
Audio Switching Support
Tone Detect Operation (TOX)
Level Threshold
-23 dBFS at 16 kHz; -28 dBFS at 18 kHz; -30 dBFS at 20 kHz
Minimum On Time
80 milliseconds
Network Audio Technology
Type
Dante audio-over-IP
AES67-2018 Support
yes
Dante Domain Manager (DDM) Support
yes
Ethernet Interface Configuration
Switched, Redundant, Switched+Mgmt, or Redundant+Mgmt, selectable
Clock Source
Dante network or internal (can serve as basic Leader Clock)
Bit Depth
16, 24, or 32
Sample Rate
48 kHz
Number of Dante Receiver (Input) Channels
32 (Model 5422A-01), 64 (Model 5422A-02)
Number of Dante Transmitter (Output) Channels
32 (Model 5422A-01), 64 (Model 5422A-02)
Number of Dante Flows
32 transmitter, 32 receiver
Internal Digital Audio Processing
32-bit, fixed
Input-to-Output Audio Processing Latency
<100 uSec
Network Interfaces
3, Primary, Secondary, and Management
Type
1000BASE-T, Gigabit (GigE) twisted-pair Ethernet per IEEE 802.3ab (100 Mb/s supported but not recommended for optimal performance; 10 Mb/s not supported)
Auto MDI/MDI-X Support
yes
Connection (NIC) Status LEDs
one link and one activity for each Ethernet interface
Software Updating
USB flash drive supports updating of application and FPGA firmware (embedded software); Dante interface updated via Ethernet interface
Power Sources
AC Mains
100 to 240 V, 50/60 Hz, 5 W maximum
DC
10 to 18 V, 0.5 A max
Connectors
Ethernet
3, RJ45 receptacle
USB
type A receptacle (used only for updating firmware)
DC Input
4-pin male XLR (pin 1 negative, pin 4 positive)
AC Mains Input
3-blade, IEC 320 C14-compatible (mates with C13)
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)
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
7.9 inches deep (20.1 cm)
Mounting
one space (1U) in a standard 19-inch rack
Weight
2.8 pounds (1.3 kg)
Item Includes
1x Studio Technologies Model 5422A-02 Dante Intercom Audio Engine with 2 Groups of 32 Dante Transmitter & Receiver Channels