UZAY
Interface Electronics
PIU
(Payload Interface Unit)
PIU is a reliable interface unit that can be adapted to different satellite platforms (e.g. micro satellite). Thanks to its smart unit, cost-effective material diversity, and modular unit structure, it can meet various digital and analog interface needs.
PIU provides the following features to the satellite flight segment:
- Smart unit and peripheral components for payload software
- TM-TC services and interfaces for imaging and scientific payloads
- Controlling and monitoring of payloads via CAN, RS-422/RS-485, Spacewire and LVDS data buses.
- Failure tolerant architecture based on redundancy and hardware protection
GAYE Features
Key Features
- MPF500T Based Polarfire FPGA
- Powerful, High Reliable RISC-V Based Microprocessor
- 4 MB SRAM/MRAM, 4 GB SDRAM, 32 GB NAND Flash
Hardware FDIR Features
- Over Current Protected Secondary Power Switch
- Auto Reset Functionality for Power Switch after Current Protection
- Soft Start Feature
- Internal Temperature Monitoring
- Internal Current and Voltage Monitoring
- Redundant Internal Databus
Budget
Supply 28V nominal (15V to 50V input voltage range)
Power: 30W (nominal)
Dimension: mm x mm x mm (Width x Length x Height)
Weight: kg
Interfaces
2 CAN
14 RS-422/RS-485
2 x Spacewire
Xbant: Dual Channel LVDS
Test: 1 JTAG
Heritage / Platforms
AYAP-1
Environments / Reliability
Thermal:-20 to +50 C
Vibration
Shock
EMI/EMC: MIL-STD-461
Lifetime: min. 1 year
SEU tolerant
Latchup Immune
TMIE
(Temperature Monitors Interface Equipment)
TMIE can measure the satellite temperatures and another analog signals with high reliable design.
TMIE provides the following functions:
- Configurable with hot redundant and cold redundant version.
- FPGA resources for the flight mission software
- Discrete monitoring interfaces compatible with ECSS-E-ST-50-14C
- Failure tolerant architecture based on redundancy and hardware protection
- Max 366 thermistor measurement.
TMIE Features
Key Features
- High Reliable radiation tolerant FPGA design
- MIL-STD-1553 and CAN communication
- Opening and closing with telecommand
- Temperature measurement of 183 points
- Work with PTC and NTC thermistor
- Aeroglaze surface coating
- -20°C to +50°C operational temperature
Budget
Supply: 100V (GEO) - 80V/120V (Input Voltage Range)
28V (LEO) - 15V - 50V (Input Voltage Range)
Power: 7.5W - 14W (nominal)
Size: 310 mm x 220 mm x 260 mm (W x L x H)
Data Bus : 2 x 2 MIL-STD-1553 (Redundant system), 2 x 2 CAN (*CAN communication has been added in AAP-1 satellite - Redundant system)
Weight: 8.3 kg
EMI/EMC: MIL-STD-461
Lifetime: 5 to 15 years
SEU tolerant
Latchup Immune
Heritage / Platforms
TURKSAT 6A, AYAP-1
REIU
(Reaction Wheel Interface Unit)
The Reaction Wheel Interface Unit is the equipment that provide communication between the reaction wheels and the Satellite Management Unit.
REIU Features
Key Features
- MIL-1553B communication standard for system communication.
- FPGA used as the smart unit.
- FPGA using provides high level features in terms of reiability, radiation tolerance and time certainty
- Start command of equipment is HPC (High Power Command)
- Redundant unit is available for hot/cold redundancy
Interfaces
4 x 12-bit DAC(0v-10v)
8 x TSM1
4 x LPC
4 x ASM
8 x BSM/BDM
2 x MIL-1553B
2 x HPC receiver
Budget
Supply: 100V
Weight : 3.6 kg
Power: 7W (max) - 6W (min)
Dimensions : 288 mm x 220 mm x 94.6mm (W x L x H)
Heritage / Platforms
TURKSAT 6A
Environments / Reliability
Thermal:-20 to +50 C
Vibration
Shock
EMI/EMC: MIL-STD-461
Lifetime: 5 to 15 years
SEU tolerant
Latchup Immune
