Advanced Simulation Technology inc.
ACU2
ACU2 Hardware
The ACU2 provides remote interfacing of audio and I/O peripherals over ASTi's Ethernet-based ACENet architecture. Expanding on the ACU device, the ACU2 offers the following enhancements:
Stereo Support: Stereo operation (independent left and right output) is supported on a single connector, greatly reducing cabling complexity and installation footprint for applications requiring stereo operators.
Reduced Footprint: Each ACU2 supports four configurable mono/stereo operator positions in a single compact unit. At one-fourth the size of the ACU, the ACU2 fits easily on a desktop. In addition, mounting two ACU2 units side-by-side in 1U 19” rack space provides 8 mono/stereo operator positions.
Power Daisy Chain: A convenient power daisy chain connection allows operation of two ACU2 units from a single power supply.
The ACU2 also includes the same audio distribution features present on the ACU.
High Fidelity Audio: 48kHz digital audio and balanced pro-audio interfaces.
Software Configurable: Adjustable amp/preamp gains and mic power for easy, direct connection to military and commercial headsets and a wide variety of audio/communications systems and peripherals.
Serial Data Ports: Provide convenient control interface for ASTi Hand-held Terminals, simulated panels and live radio control.
Integrated I/O: Configurable digital and analog I/O for direct connection of PTT units, volume controls, switch detection, radio PTT activation, and other control applications.

ACU2 Specifications

Audio Inputs (per channel)

  • Input Impedance: 1kΩ
  • Input Level: ± 2.5V peak max
  • Input Gain: 0 to +62 dB software configurable

Audio Outputs (per channel)

  • Output Impedance: 10 Ω

Control Inputs

  • Quantity: 12 (3 per connector) use as digital or analog input
  • Configuration: 6 pins per connector (ground and sense pin)

Digital Outputs

  • Quantity: 4 (1 per connector
  • Configuration: Opto-Isolated, 120mA
    2 pins on each audio connector (output and return pin)

Serial Ports

  • Quantity: 2
  • Type: RS-422
  • Connection: Standard RJ12 Jack (6 pin)

ACENet Connectors

  • Connection: One ACENet port
    RJ-45 female connection

Mechanical

  • Approximate Size: 7" width x 1.55" height x 7.5 depth
  • Mounting: 1U 19" rackmount panel available (2 units per 1U rack)

General

  • Power: +15VDC, 3 A (plug-in AC/DC converter supplied with each unit)
  • Audio Connection: 15 pin female D-sub (1 stereo audio output, 1 audio input, 3 control inputs, 1 digital output per connector)
  • ACENet Cabling: Category 5e cable or better