DIGITAL CONTROL INTERFACE UNIT (DCIU) FOR BPU-600 (FLIGHT HERITAGE, FALCONSAT-5) The microcontroller-based system provides an abstraction layer between the high-level spacecraft commands and the thruster’s low-level actuation and monitor operations. Unified External Addressable Memory (64kBytes) 8 12-bit Analog Control Outputs 48 12-bit Analog Monitor Inputs 21 5V CMOS Digital Control Outputs 2 TTL Digital Monitor Inputs Isolated Differential Asynchronous Serial Bus (RX/TX) Isolated Differential GPS PPS Input In-Flight Reprogramable Code EEPROM (128kBytes)
DIGITAL CONTROL INTERFACE UNIT (DCIU) FOR MPACS (FLIGHT HERITAGE, FALCONSAT-3) This rugged system provided electrical isolation, and command / control / telemetry interface between the MPACS and the flight computer. 
DIGITAL CONTROL INTERFACE UNIT (DCIU) FOR DISTURBANCE REDUCTION UNIT, SPACE TECHNOLOGY 7, (LISA PATHFINDER) This microprocessor-based control system provides command and telemetry interface  with the satellite avionics and controls the thrusters by adjusting electrode voltages  and flow rates. 32kByte ROM, 32kByte RAM 40 12-bit ADC Input Channels for PPU / Thruster monitoring 20 12-bit DAC Output Channels for PPU / Thruster command / control RS422 IAU Communication Regulated voltage outputs for PPUs (+5V, +/-15V) Galvanic isolation from spacecraft chassis ground
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