The space data link layer protocols, primarily developed by the Consultative Committee for Space Data Systems (CCSDS), are:
- TC Space Data Link Protocol (TC-SDLP): This protocol handles the transmission of telecommands to spacecraft.
- TM Space Data Link Protocol (TM-SDLP): This protocol handles the transmission of telemetry data from spacecraft.
- AOS Space Data Link Protocol (AOS-SDLP): This is an advanced orbiting systems (AOS) protocol that supports more sophisticated data handling and routing.
- Data Link Layer of the Proximity-1 Space Link Protocol: This protocol is designed for short-range communication between spacecraft or between a spacecraft and a surface asset (e.g., a lander).
These protocols ensure reliable and standardized communication between space-based assets and ground stations or other spacecraft.
