25-pin Nano-D is one of the most common Nano-D configurations providing full RS-422 or parallel bus connectivity in an extremely compact package for satellite payloads and drone avionics.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Pin 1 | Signal 1 | I/O |
| 2-24 | Pins 2-24 | Signal contacts | I/O |
| 25 | GND | Ground | GND |