NI PXI-4224 Front Connector
| Front Connector Diagram | Pin Number | Signal Names | Pin Number | Signal Names |
|---|---|---|---|---|
 NC means no connect. |
14 | AI 0 – | 1 | AI 0 + |
| 15 | AI 1 – | 2 | AI 1 + | |
| 16 | AI 2 – | NC | AI 2 + | |
| 17 | AI 3 – | 4 | AI 3 + | |
| 18 | AI 4 – | 5 | AI 4 + | |
| 19 | AI 5 – | 6 | AI 5 + | |
| 20 | AI 6 – | 7 | AI 6 + | |
| 21 | AI 7 – | 8 | AI 7 + | |
| 22 | NO PIN | 9 | NO PIN | |
| 23 | NC | 10 | D GND | |
| 24 | SPI CLK | 11 | MISO | |
| 25 | SELECT | 12 | MOSI | |
| N/A | N/A | 13 | + 5 V |