ASTi ACU2, Technical User Manual, Page: 9 / 37

1.0 Introduction
The ACU2 (v2) is a compact, 48 kHz digital and audio distribution module that connects
remotely located operator stations and live radios to the ACENet network. The ACU2 (v2) is
compatible with Telestra platforms. The ACU2 (v2) provides low noise, analog-to-digital con-
version, and low-latency audio distribution.
The ACU2 (v2) integrates press-to-talk (PTT) units, volume controls, simulated com-
munication panels, handheld terminals (HHTs), and live radios into the simulated com-
munications environment.
The ACU2 (v2) supports the following features:
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Stereo support : stereo operation (i.e., independent left and right output) is supported on
a single DB-15 connector, which reduces cabling complexity and installation footprint
for applications requiring stereo operators.
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Compact footprint : each device supports four configurable mono or stereo operator pos-
itions in a single compact unit, which fits easily on a desktop. Alternatively, rackmount
two devices side by side in 1U 19" rack space.
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High-fidelity audio : 48 kHz digital audio and balanced pro-audio interfaces.
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Software-based configuration : software-adjustable amplifier or preamplifier gains and
microphone power for easy, direct connection to military and commercial headsets and
a wide variety of audio and communication systems and peripherals.
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Serial data ports : control interface for ASTi hand-held terminals (HHTs), simulated
panels, and live radio control.
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Integrated I/O : configurable digital and analog input/output (I/O) for direct connection
of PTT units, volume control, switch detection, radio PTT activation, and other control
applications.
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ACU2 (v2) Technical User Guide (Rev. A, Ver. 0)