Some notes from research:
Physical Interface:
- RS-422 / UART -> default for commercial satellitesÂ
- Typical Baud Rate: 115.2 kbps
- Effective useful data rate: 80-100 kbps
- CAN Bus
- Depending on how much data is generated or sentÂ
- Ethernet or Spacewire (high data rate)Â
-> maybe two channels? One for telemetry, health and commands (RS-422) and one for science data (ethernet)
Some data stuff:
- Throughput data
- Max sustainedÂ
- Packet format
- Connector types and pinouts
- Onboard time synchronizationÂ
Expected telemetry:
- Physical health and status of payload
- Payload mode
- Voltages and current
- TemperaturesÂ
- Internal clocks + timing
- Science data