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2 - 12 MC9090-G RFID User Guide Suppliment
Keypad Special Functions
The keypad special functions are color coded on the keypads. For example, on the 53-key keypad, the display
backlight icon is blue indicating that the blue function key must be selected first to access the display backlight.
Table 2-5
Keypad Special Functions
Icon 53-Key, Keypad Special Function
Blue key +
Z
Turns on and off the display backlight.
Blue key +
X
Turns on and off the keypad backlight.
Blue key +
D
Color units: Increases display backlight intensity.
Blue key +
I
Color units: Increases display backlight intensity.
Blue key +
H
Increases scan decode beeper volume.
Blue key +
M
Decreases scan decode beeper volume.
* Blue key +
CTRL
Enables Alt keypad functions.
NOTE Use of display and keypad backlighting can significantly reduce battery life.