# DUT management

URL: https://irs.systems/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f11testconfiguration/dutmanagement

Before you can assign DUT's to test stations you need to define DUT's by their serial numbers / names.

> Open the DUT management dialog by pressing the small button next the the DUT name drop down field in F11 dialog.

![DUT Management](/docs/assets/ltt/assets/dlg-f11-dutmgmt.png)

Just enter a name prefix and a numeric suffix and press the button.

You can delete individual DUT's by selecting them and pressing the **del key**.

[back to F11 dialog](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f11testconfiguration)