Studio Technologies Model 232 Announcer’s Console

Key Features

• Compact unit supports one on-air location
• Dante audio-over-Ethernet technology
• Microphone preamplifier with selectable gain and P48 power
• One main and two talkback output channels
• User-controlled headphone mixing
• Superior audio quality
• Redundant Dante with two GigE interfaces
• PoE and 12 Vdc powering
• Extensive feature configuration using STcontroller application
• Supports REMI/At-Home applications

Network Audio Technology:
Type: Dante audio-over-Ethernet
AES67-2018 Support: yes, selectable on/off
Dante Domain Manager (DDM) Support: yes
Ethernet Interface Configuration: Switched or Redundant
Bit Depth: 16, 24, or 32
Sample Rate: 48 or 96 kHz
Pull-Up/Down Support: no
Dante Transmitter (Output) Channels: 6
Dante Receiver (Input) Channels: 7
Dante Audio Flows: 32; 16 transmitter, 16 receiver
Internal Digital Audio Processing: 32-bit, fixed
Input-to-Output Audio Processing Latency: <200 uSec
Nominal Dante Receiver (Input) and Transmitter (Output) Level: –20 dBFS

Network Interfaces: 2, Primary-PoE and Secondary
Type: 1000BASE-T Gigabit Ethernet (GigE) per IEEE^® 802.3ab (10 and 100 Mb/s not supported)
Power-over-Ethernet (PoE): per IEEE 802.3af (applicable to the Primary-PoE network connection only)

Analog Microphone Input:
Compatibility: dynamic or phantom-powered microphones
Type: balanced, capacitive coupled
Impedance: 3.6 k ohms, nominal
Gain: 20 to 65 dB in 1-dB steps
Frequency Response: 20 Hz to 22 kHz, +0/–1 dB
Distortion (THD+N): <0.0004%, 1 kHz, –4 dBFS output, 20 dB gain, 22 kHz BW
Dynamic Range: 120 dB, ref 0 dBFS output, 20 dB gain, A-weighted
Phantom Power: P48 per IEC 61938 standard, on/off selectable with status LED

Limiter Function:
Type: digitally controlled analog
Application: applies only to analog microphone input, selectable on/off
Threshold: 12 dB above nominal level (–8 dBFS)
Minimum On Time: 30 milliseconds
Maximum Attenuation: 16 dB at 36 dB or greater microphone preamplifier gain

Analog Microphone Output:
Type: passive via two 200 ohm resistors from microphone input (will pass phantom power in either direction)
Muting: solid-state relay contacts, 60 dB attenuation @ 1 kHz

Headphone Output:
Type: analog 2-channel (stereo)
Compatibility: stereo (dual-channel) or monaural (single-channel) headphones, headsets, or earpieces with nominal impedance of 50 ohms or greater
Maximum Output Voltage: 3.0 Vrms, 1 kHz, 150 ohm load
Frequency Response: 20 Hz to 20 kHz, +0/–1 dB
Dynamic Range: >102 dB, A-weighted
Distortion (THD+N): <0.025%, measured at 1 kHz, 0 dBu output

Talkback Input Low-Pass Filter (LPF):
Function: active only when specific talkback channel has tone detect function enabled
Type: digital, 8-pole Butterworth (48 dB/octave)
Cutoff: –3 dB at 12 kHz

18 kHz and 20 kHz Tone Outputs:
Type: sine wave
Level: –20 dBFS
Frequency Accuracy: <10 ppm
Distortion: <0.0001%

Tone Detect Function:
Receive Frequency: ≥15 kHz nominal to upper end of frequency response, within audio channel
Receive Level: –27 dBFS minimum
Send Frequency: 20 kHz
Send Level: –20 dBFS

IFB (Dims Main Audio) Function:
Activation: in-band tone detection per Tone Detect function
Attenuation (Dim): 15 dB, fixed

Call Light Function:
Activation: in-band tone detection per Tone Detect function

Remote Control Inputs: 4
Function: configurable, can mimic the action of the main and talkback button functions
Type: active low, 1 mA maximum, input pulled up to 3.3 volts DC via 3.4 k ohm resistors
Limitation: Remote Control Input 2 shares hardware pin with Tally Output (only one function can be configured at a time)

Tally Output:
Functions: follows the status of the main output
Type: active high, 3.3 volts DC in series with 130 ohm resistor (25 mA maximum)
Limitation: tally output shares hardware pin with Remote Control Input 2 (only one function can be configured at a time)

Connectors:
Analog Microphone Input: 3-pin female XLR
Analog Microphone Output: 3-pin male XLR
Headphone Output: 3-conductor ¼-inch jack
Ethernet: 2, Neutrik NE8FBH etherCON RJ45 receptacles
DC Input: 4-pin male XLR (pin 1 negative, pin 4 positive)
USB: type A receptacle (used only for updating firmware)
Remote Control Inputs / Tally Output: 2, 3-pin headers located on the main circuit board
Headphone Output: 3-pin header located on the main circuit board
DC Output: 3-pin header located on the main circuit board
Analog Microphone Input: 3-pin header located on the analog circuit board

Spare Connector Locations: 2
Allows a Studio Technologies' cable assembly or option module to be installed. Also compatible with Neutrik NC*D-L-1 connectors (*=3F, 3M, 5M, 6F, 6FS, etc.).

Configuration: requires Studio Technologies' STcontroller software application

Power Sources:
Power-over-Ethernet (PoE): class 3 (mid power, ≤12.95 watts) per IEEE 802.3af
DC Input: 10 to 18 volts DC, 0.55 A maximum at 12 volts DC (can be powered by optional PS-DC-02)

Environmental:
Operating Temperature: 0 to 50 degrees C (32 to 122 degrees F)
Storage Temperature: –30 to 70 degrees C (–22 to 158 degrees F)
Humidity: 25 to 85%, non-condensing
Altitude: not characterized

Dimensions (Overall):
6.5 inches wide (16.5 cm)
2.9 inches high (7.4 cm)
4.9 inches deep (12.5 cm)

Deployment: intended for tabletop applications

Weight: 2.1 pounds (0.95 kg)