Dell UPS 1920T - Manual (Page 84)

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Operation and Maintenance
Option 4: Return to Default Configuration
Select menu item 4 to restore the parameters to the factory-default configuration (see “Card Defaults”
on page 11). Wait for the confirmation message (see Figure 45). Restart the card to save the default
parameters.
Configuration has been set to default one.
You must Reset the card.
Figure 45. Default Configuration Confirmation Message