Table 5-2. 9 way female 'D' connector
| pin | function |
|---|
| 1 | +10V supply output. |
| 2 | -10V supply output. |
| 3 | +5V supply output. |
| 4 | supply 0V |
| 5 | Doppler shift signal input |
| 6 | CCD 0V return. |
| 7 | CCD +12V supply. |
| 8 | LED brightness control output. |
| 9 | Laser enable output. laser on = 0V; laser off = 5V. |