Integrated Avionics Unit
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Key Capabilities
Integrated C&DH and EPS Sub-System Functionality
Supports all Sub-System Interfaces:
– Telemetry, Tracking, & Command (TT&C)
– Guidance, Navigation, & Control (GNC)
– Payload
– Power Distribution
– Power (Solar Arrays and Batteries)
– Propulsion
– Thermal
– Structures and Mechanisms
– Launch Vehicle and Ground Support
Modular and Scalable 3U Form Factor based Architecture
– Single Board Computer (SBC) with Mission Specific I/O Boards
SWaP (Dependent on # I/O Boards)
– Size: Up to 25 x 21 x 12 cm
– Mass: Up to 8.3kg
– Power: Up to 37 W (IAU) and 3,000 W (System)
| Feature | Specifications |
CPU |
SBC with on-board memory |
| CPU | CPU Boot Memory (EEPROM, KB) - TMR |
| CPU | CPU System Memory (SDRAM, MB) - EDAC |
| CPU | CPU FSW Storage (FLASH, GB) - TMR |
| Payload Processing | Payload Processor Support |
| Data Storage | IO Buffer Memory (SDRAM, MB) |
| Data Storage | IO Buffer Memory (SRAM, MB) |
| Data Storage | IO Buffer Memory (FLASH, GB) - TMR or ECC |
| Communication Interfaces | 10/100/1000BaseT Ethernet |
| Communication Interfaces | MIL-STD-1553B |
| Communication Interfaces | SpaceWire |
| Digital IO | Total LVDS/RS-422 Transmitters |
| Digital IO | Total LVDS/RS-422 Receivers |
| Digital IO | Total CMOS Bi-Level Outputs |
| Digital IO | Total CMOS Bi-Level Outputs |
| Digital IO | DeSerializers |
| Analog IO | Analog Voltage Inputs (+/-10V) |
| Analog IO | AD590 Temperature Inputs |
| Analog IO | PRT/Thermistor Temperature Inputs |
| Analog IO | Coarse Sun Sensor Inputs |
| GPS |
GPS Receiver with dual inputs
|
| Feature | Specifications |
+28V Power Distribution |
Solar Array Interface |
| +28V Power Distribution | Battery Charge Management |
| +28V Power Distribution | Current Monitoring |
| +28V Power Distribution | 28V Switch Over Current Trip |
| +28V Power Distribution | 28V Arm/Fire Switches (7.0A) |
| +28V Power Distribution | 28V Arm/Fire Switches (5.0A) |
| +28V Power Distribution | 28V Arm/Fire Switches (2.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (50.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (30.0A |
| +28V Power Distribution | 28V Fire-Only Switches (20.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (10.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (5.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (2.0A) |
| +28V Power Distribution | 28V Fire-Only Switches (1.2A) |
| +28V Power Distribution | 28V Thruster Driver Switches |
| +28V Power Distribution | 28V HLD Switches (0.2A) |
| +28V Power Distribution | 28V H-Bridges (Torque Rods) |
| +28V Power Distribution | +5V Power Output (IMU Support) |
| +28V Power Distribution | +/-15V Power Output (IMU Support) |
| +28V Power Distribution | 3-Phase Motor Control |
| +28V Power Distribution | 28V EMI Filtering |
| +28V Power Distribution | 28V DC/DC Converter (+3V, +5V, ±15V) |
