Backlight Functionality - Paradox Spectra 1641BL Manual Del Usuario

BACKLIGHT FUNCTIONALITY

When the system is in Confidential Mode or during an AC
power loss, the intensity of the keypad's backlight
automatically decreases to a Level 1 setting. During this time,
if a key is pressed on the keypad, the backlight switches to
regular intensity and then returns to the Level 1 setting when
all actions on the keypad cease. The backlight returns to
regular intensity when the system is no longer in Confidential
Mode or when AC power is restored.
Spectra 1641BL 11