| Pin # | Function | Notes | Wire colors in Vaisala cables |
|---|---|---|---|
| 1 | Power supply |
Operating voltage: 15–30 V DC Current consumption: 10 mA typical, 500 mA max. |
Brown |
| 2 | RS-485 - | White | |
| 3 | Power GND and RS-485 common | Blue | |
| 4 | RS-485 + | Black | |
| 5 | Not connected | Gray |
|
Recommended maximum length of the RS-485 line is 30 m (98 ft). |