6 User’s Manual
2.2.2 For the Spectra 1641 LCD Keypad
The LCD (liquid crystal display) is a 32-character screen that
displays messages that can be customized to your needs.
Figure 2.3: Overview of the 1641 LCD Keypad
2.3 AUDITORY FEEDBACK
When you enter information on the keypad, it will guide you
with beep tones. You should be familiar with these:
Confirmation Beep:
When an operation (i.e. arming/
disarming) is successfully entered on the keypad or when the
system switches to a new status/mode, the keypad produces
an intermittent beep tone (“
BEEP
-
BEEP
-
BEEP
-
BEEP
”).
Rejection Beep:
When the system reverts to previous status
or when an operation is incorrectly entered on the keypad, it
will emit a continuous beep tone (“
BEEEEEEEEP
”).
