RoadRunner
U S E R S G U I D E
61
Keypad Beeper and Display Brightness
The
RoadRunner
contains a keypad beeper that provides feedback to
the user by emitting a short chirp sound each time a key is pressed. In
some applications, it may be necessary to mute this beep, and this can
be done using the keypad sequence
<Maint><Beeper>
or the
MBX
command.
The display contrast can also be adjusted over a wide range for ease of
viewing at any angle and under varying lighting conditions. Use the
keypad sequence
<Maint><Contrast>
or the
CCV
command to adjust the display.