NAI supplied an extremely high-density I/O and communication subsystem for the unmanned amphibious assault ship. This standalone subsystem is rugged and conduction-cooled. The ACTUV (ASW Continuous Trail Unmanned Vessel) Mission Processor connects to the SIU6 via two Gig-E ports to manage, monitor, and control 20 Analog Input channels; 4 Analog Output channels; 12 RTD channels; 48 highly programmable Discrete I/O channels; and, Serial, CANBus, and ProfiBus sensor data. By eliminating the SBC, NAI was able to reduce SWaP, increase overall reliability, and eliminate Board Support Package and Run-Time-License costs.