Product Overview
The Model 544D Audio Interface presents a highly efficient means of connecting two analog line-level audio channels to and from applications that employ Dante® audio-over-Ethernet media networking technology. Two Model 544D devices can establish bidirectional signal paths, offering one-to-one connectivity over a regular local area network (LAN). A standalone Model 544D unit can allow Dante-enabled products to interface with analog input and output signals, and it also facilitates the transport of status signals or contact closures between Model 544D units and other compatible devices. Each Model 544D features two general-purpose inputs (GPI) and two general-purpose outputs (GPO). Furthermore, the unit can generate sine-wave signals at a frequency of 1 kHz, 18 kHz, or 20 kHz, which can be output through the analog line-level and Dante digital interface channels.
Studio Technologies M544D Features:
- Dante audio-over-Ethernet technology
- Input and output level metering
- GPI and GPO support
- Tone generator capability for REMI and call light applications
- Excellent audio quality
- Uses STcontroller for monitoring and configuration
- PoE and 12 volts DC powering
- Table-top, portable, or optional rack-mount use
Studio Technologies M544D Specifications:
- Power Sources:
- Power-over-Ethernet (PoE): class 1 (very low power) per IEEE® 802.3 af
- External: 10 to 18 volts DC, 0.3 A max at 12 volts DC
- Network Interface:
- Type: 100BASE-TX, Fast Ethernet per IEEE 802.3 u (10BASE-T and 1000BASE-T (GigE) not supported)
- Power-over-Ethernet (PoE): Per IEEE 802.3 af
- Data Rate: 100 Mb/s (10 Mb/s and 1000 Mb/s not supported)
- General Network Audio:
- Type: Dante audio-over-Ethernet
- AES67-2018 Support: yes, selectable on/off
- Dante Domain Manager (DDM) Support: yes
- Bit Depth: 16, 24, or 36
- Sample Rate: 48 kHz
- Dante Receiver (Input) Channels: 2
- Nominal Level: –20 dBFS
- Dante Receiver Audio Flows: 2
- Dante Transmitter (Output) Channels: 2
- Audio Sources: analog input Ch 1, analog input Ch 2, Dante receiver (input) Ch 1, Dante receiver (input) Ch 2, 1 kHz tone, 18 kHz tone, or 20 kHz tone
- Nominal Level: –20 dBFS
- Dante Transmitter Audio Flows: 2
- Line Inputs: 2
- Type: analog, electronically balanced, capacitor coupled
- Impedance: 20 k ohms, nominal
- Nominal Level: +4 dBu, –2 dBu, or –10 dBu, selectable
- Maximum Level: +24 dBu when configured for +4 dBu nominal
- Dynamic Range: >114 dB, A-weighted
- Distortion (THDS+N):
- Frequency Response: +0.0 dB/–0.5 dB, 20 Hz to 20 kHz
- Line Outputs: 2
- Audio Sources: Dante receiver (input) Ch 1, Dante receiver (input) Ch 2, analog input Ch 1, analog input Ch 2, 1 kHz tone, 18 kHz tone, or 20 kHz tone
- 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: +4 dBu, –2 dBu, or –10 dBu, selectable
- Maximum Level: +24 dBu when configured for +4 dBu nominal
- Dynamic Range: >114 dB, A-weighted
- Distortion (THDS+N): 0.003% (–90 dB), measured at –1 dBFS, 22 kHz bandwidth
- Frequency Response: ±0.1 dB, 20 Hz to 20 kHz, GPO low-pass filter disabled
- GPO Low-Pass Filters: –3 dB @ 10 kHz, –55 dB @ 20 kHz
- Tone Generator Function:
- Type: sine-wave
- Frequency: 1 kHz, 18 kHz, and 20 kHz, ±350 mHz
- Analog Output Level: +4 dBu, –2 dBu, –10 dBu, nominal, selectable
- Analog Output Distortion (THD+N):
- Digital Output Level (Dante transmitter (Output) channels): –20 dBFS
- Digital Output Distortion (THD+N):
- Meters: 4
- Function: displays level of audio input and output channels
- Type: 5-segment LED, modified VU ballistics
- GPI: 2
- Type: logic input, pulled up to +3.3 volts DC through 3.3 k (3300 ohm) resistor, pull input down to common connection to enable
- Signaling Method: tone summed into Dante transmitter (output) audio path, 20 kHz, ±350 mHz
- Status LEDs: 2
- GPO: 2
- Output Type: solid-state relay contact, form A (normally open, not shorted), isolated
- Contact Rating: 400 mA, 60 volts AC/DC, maximum
- Contact Resistance: 2 ohms, maximum
- Activation Method: manual using STcontroller application or by monitoring Dante receiver (input) audio channel for presence of nominal 18 kHz and above tone. Digital low-pass filter limits the amount of tone audio that is sent to the associated analog line output.
- Status LEDs: 2
- Auxiliary DC Output:
- Application: for use with GPO outputs
- Type: 12 volts DC, nominal, 25 mA maximum
- Connectors:
- Line Inputs: 3-pin female XLR
- Line Outputs: 3-pin male XLR
- Ethernet: Neutrik etherCON RJ45 jack (compatible with Neutrik etherCON CAT5-compatible plug)
- External DC: 4-pin male XLR
- GPI/GPO/Aux DC: 9-pin female D-subminiature (DE-9F)
- USB: type A receptacle (located inside Model 544D's enclosure and used only for updating application firmware)
- Configuration: requires Studio Technologies' STcontroller software application
- Software Updating: USB flash drive used for updating application firmware; Dante Updater application used for updating Dante interface firmware
- 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:
- 8.70 inches wide (22.1 cm)
- 1.72 inches high (4.4 cm)
- 8.30 inches deep (21.1 cm)
- Weight: 1.7 pounds (0.77 kg); rack-mounting installation kits add approximately 0.2 pounds (0.09 kg)
- Deployment: intended for tabletop applications. Four optional mounting kits are also available:
- RMBK-10 allows one unit to be mounted in a panel cutout or on a flat surface
- RMBK-11 allows one unit to be mounted in the left- or right-side of one space (1 U) of a standard 19-inch rack
- RMBK-12 allows two units to be mounted in one space (1 U) of a standard 19-inch rack
- RMBK-13 allows one unit to be mounted in the center of one space (1 U) of a standard 19-inch rack
- DC Power Supply Option: Studio Technologies' PS-DC-02 (100-240 volts, 50/60 Hz, input; 12 volts DC, 1.5 A, output), purchased separately
