System Interface Module in 3U form factor-VME interface
System Interface Module in 3U form factor-VME interface
The primary function of the System Interface Module is to deliver low and high-power discrete signals to the aircraft equipment. Also it converts analog signals from the different LRUs to digital and converts Synchro signals received from Gyro Magnetic Heading to digital. The module then passes these digital signals to the CPU. It generates signals for GMHDG as well as for Angle of Attack (AOA) and NAU as requested from CPU (TBR).
Product Details
OVERVIEW
- RM57L843 Microcontroller based on the ARM® Cortex®-R Core
- 16K x 16 DPRAM
- FPGA for VME32 (24-BIT ADDRESS) interface
- 24 Discrete Inputs (Spare = 4)
- 16 Discrete outputs (Spare = 5)
- One ADC 8 input Channels
Block Diagram
SPECIFICATIONS
VME external Connectors
- 20 discrete inputs and 11 outputs
Local Bus to VME Unit
- DPRAM
- Control logic circuit
Processing Unit
- Microcontroller
- JTAG
- Crystal Oscillator
Memory
- SRAM
- 64MB Flash
Discrete Output Circuitry
- Relay Driver
- Solid State Relay (internally optically isolated)
Analog/Digital section
- Differential to single ended converter
- ADC
- Precision reference
Synchro/Digital interface
- An external 26V/400 Hz reference
- Floating input signals: 11.8V/400 Hz
- A 16-bit Synchro/Digital Converter
Power Requirements
- 7W power requirement
- Operating voltages 5V, +12V, -12V.
ADD-ONS
ADD-ONS
