divider-line Infrared Control Unit


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ATUC-IRCU Infrared Control Unit

The 19" rack-mountable ATUC-IRCU allows for the use of both infrared and wired discussion units, providing 24-bit/48 kHz digital signal processing (with 12-band feedback suppressor), automated gain control (AGC), mic gain and mic EQ for each connected discussion unit. It can be operated locally, through the Web Remote interface (no software required), or third-party IP control systems. Offers three selectable conference modes (Free Talk, Request to Talk, and Full Remote) and various override settings. Can record WAV and MP3 files onto a connected USB mass storage device. Includes two Mic/Line inputs, two AUX inputs and two interpretation return inputs. For wired or wireless systems.


  • Each ATUC-IRCU infrared control unit supports a maximum of 200 ATUC-IRDU discussion units and 100 ATUC-50DU/IU/INT units
  • Systems can be configured in either daisy chain or ring topology
  • Unlike typical UHF wireless systems that broadcast through walls, the ATUC-IR infrared transmission keeps your signals safe and secure, with no information leakage
  • IR transmission does not require any form of frequency coordination
  • Built-in WAV and MP3 recorder lets you record to a USB mass storage device
  • Control available through Web Remote interface and third-party IP Control Systems


Overall System
Operating Frequencies Infrared
Frequency Response +1.0, -2.0dB, 20Hz - 20kHz (+4dBu output at 1kHz)
Data Length / Sampling Frequency 24bit/48kHz
Dynamic Range 110dB, A-Weighted
Signal-to-Noise Ratio 90dB, A-Weighted
Total Harmonic Distortion Less than 0.03%, 1 kHz unity
Operating Temperature Range 0 - 40°C
Operating Humidity 25 - 85%
Simultaneous Use 300 (200x ATUC-IRDU + 100x ATUC-50CU/ATUC-50IU)
Headroom 20dB
Latency MIC Input to Output: 1ms
DU to CU: 1.2ms
Number Of Channels Voice: 10 channels
Monitor: 4 channels
Discussion Unit
Equivalent Input Noise Mic/Line: Less than –126dBu, Rs = 150ohm
Control Unit
Outputs: BAL.×4, UNBAL.×1
Link/Chain: DU A/B terminals, CU A/B terminals (DU C/D terminals)
IR Antenna: IR antenna I/O terminals × 4 (Load Impedance 75ohm)
Residual Noise Less than –86dBu, A-Weighted
Crosstalk at 1 kHz Less than –80dB
Power Supply AC 100V - 240V 50/60Hz
Phantom Power DC+48V
Power Consumption 26W to 175W (maximum)
Dimensions 434mm × 326mm × 44mm
Weight 4.76kg
OLED Display 20 × 2Character type, Color: Yellow
Operating life: 100,000hours
Accessories Power cord, Euroblock connectors (9 pieces)
Bandwidth 1MHz - 10MHz
Modulation Method FM
Compressed bit-rate MP3 - 64kbps/128kbps/192kbps/256kbps/320kbps
Media Via USB Storage Device (Supported file systems: FAT16/FAT32):
WAV - 1/2/3/4 track (BWF standard)
MP3 - 1/2 track (Original format)