Advanced Operation and Settings

To use the Configuration Utility to view and change the US221A / US421A’s settings, click on the icon in your system tray and select Settings. The following dialog box appears:

Auto Switch and Release

Enable these buttons to activate the US221A / US421A’s Auto Switch function for a printer or other devices.

When Auto Switch and Release is enabled, commands sent to the USB peripheral device are stored to be processed on a first- come, first-served basis. Control of the US221A / US421A and the USB peripheral device is locked on the computer currently performing the action and then automatically released after the action is completed.

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