Advanced Simulation Technology ACU2-04-01 ACE Communication Unit

The Advanced Simulation Technology ACU2-04-01 ACE Communication Unit is a compact digital and audio distribution device designed for seamless data exchange within industrial simulation environments. This unit facilitates reliable and accurate data transfer between simulation components, enhancing the overall fidelity and effectiveness of simulation exercises by connecting remotely located operator headsets, speakers, control panels, and other peripherals to a central system via the ACENet architecture. It evolved from the earlier ACU model to offer four-channel stereo support in a reduced form factor. The ACU2-04-01 functions as a data transportation mechanism, passing audio between devices without storing it.

### Technical Specifications

**General**
* **Compatible Platforms:** Telestra, Voisus
* **ACENet Architecture:** The ACU2-04-01 connects to a central Target via the ACENet architecture. ACENet utilizes an Ethernet-based, hub-and-spoke architecture for digital audio and I/O distribution over extended distances. It supports synchronized 48-kHz digital audio distribution for high-fidelity sound and communications simulation with extremely low transport latency. ACENet requires a dedicated network segment to maintain ultra-low latency.

**Audio Input**
* **Sample Rate:** 48 kHz
* **Impedance:** 4.6 kΩ
* **Max Input Level:** 6.5 Vpp
* **Gain:** Software configurable range from -8 dB to +57 dB. The range of +2 dB to +57 dB can be set in 1 dB steps. A -8 dB setting is available for input signals greater than line-level. The range of -8 dB to +2 dB is not selectable due to design constraints.
* **Microphone Power:** Software-enabled +12.5 VDC (for ACU2-04-01/ACU2-04-02).
* **Frequency Response:** 20 Hz to 20 kHz, +/-1.5 dB.

**Audio Output**
* **Impedance:** 10 Ω
* **Current:** 700 mA
* **Gain:** -25 dB to +10 dB
* **Level:** 2.24 Vpp (.78 VAC RMS) into 8 Ω
* **Power:** .08 W at 8 Ω
* **Frequency Response:** 20 Hz to 20 kHz
* **Max Output Signal:** 5.1 Vpp

**Memory**
* **Volatile Memory (SRAM):** 69 KB, not user-modifiable, used as RAM for the internal MCU. Cleared by removing and restoring power.
* **Non-Volatile Memory (Flash):** 8 Mb, user-modifiable firmware storage.
* **Media Storage:** The ACU2 does not contain any media storage capability (e.g., disk drives, memory cards).

**Interfaces**
* **ACENet Port:** Connects to an ACENet-compatible switch via Category 5e or better cable. Can also connect directly to Telestra or Voisus servers via a crossover cable. Ethernet port speed/duplex requirements are 100 Mbps, full duplex.
* **Serial Ports:** Two serial ports provide a control interface for ASTi Hand-Held Terminals (HHTs), simulated panels, and live radio control. Supports RS-422 and RS-232 modes via RJ-12 connectors.
* **DB-15 Connectors:** Four DB-15 connectors on the front panel for connecting to a variety of audio and PTT devices. Supports stereo operation on a single DB-15 connector, reducing cabling complexity.
* **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.

**Physical**
* **Dimensions:** 7.5″ length x 7″ width x 1.55″ height, or 7.9″ length (depth) x 7.489″ width x 1.724″ height.
* **Weight:** Unit: 2 lbs. Included power supply: 0.5 lbs.
* **Rackmount Capability:** Two units can be rackmounted side-by-side in 1U of 19” rack space.
* **Certification:** CE/ROHS certified. Removing bezels voids CE certification.

**Power**
* **Power Source:** Individual power supply included.
* **Power Consumption:** +15VDC, 2 A.
* **Daisy Chaining:** Requires a different power supply when daisy-chained; contact ASTi for details.

**Reliability**
* **Mean Time Between Failure (MTBF):**
* ACU2-04-02 (COTS): 108,100.75 hours
* ACU2-04-02 (MIL): 48,390.23 hours

**Compatibility**
* **Platforms:** Telestra, Voisus
* **Cabling:** ASTi recommends high-quality, manufactured Category 5e cables for ACENet connection.

### Why Choose Aumictech for Advanced Simulation Technology ACU2-04-01 ACE Communication Unit?
At Aumictech, we specialize in supplying high-end industrial simulation equipment. Whether you need reliable data exchange for complex training scenarios, accurate audio distribution for enhanced simulation fidelity, or robust connectivity for diverse peripherals, our team ensures the Advanced Simulation Technology ACU2-04-01 ACE Communication Unit delivers maximum performance for your application.