# UT-VT-AUX

```{index} single: UT-VT-AUX
```

| ISO 11783-6 | AEF | AUX |  
|--- | --- | --- |
| VT 1 |   |   |  
| VT 2 | UT 1 | AUX-O |  
| VT 3 | UT 2 | AUX-N |  
| VT 4 |   |   |  
| VT 5 |   |   |  
| VT 6 |   |   |