SpaceWire (ECSS-E-ST-50-12C) is the European space standard serial link using 9-pin micro-D connectors for 2 Mbps to 400 Mbps data transfer between spacecraft instruments, processors, and mass memory.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | D_IN+ | Data input positive | BUS |
| 2 | S_IN+ | Strobe input positive | BUS |
| 3 | D_IN- | Data input negative | BUS |
| 4 | S_IN- | Strobe input negative | BUS |
| 5 | GND | Ground | GND |
| 6 | D_OUT+ | Data output positive | BUS |
| 7 | S_OUT+ | Strobe output positive | BUS |
| 8 | D_OUT- | Data output negative | BUS |
| 9 | S_OUT- | Strobe output negative | BUS |