INFOSEC UPS SYSTEM E3 Performance 5000 RT Manual page 48

09: LCD display backlight setting

Interface
00: Exit setting

Interface
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48
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Setting
Parameter 2: Set up the working mode for the LCD
display backlight.
Aon: LCD display backlight is on all the time.
Aut: LCD display backlight will be off after pressing the
buttons 60seconds. (Default)
Setting
Exit the setting mode.
Disconnect AC input and wait until the LCD display is off.
The new setting will be activated when turning on the UPS
again.