Yellow/Green
Alarm GND
Blue
Alarm OUT 1
Green
Alarm COM 1
Audio
Red
Audio OUT
White
Alarm IN
Black
Alarm GND
3.3
Alarm Setup
Certain devices support alarm inputs and outputs, check your specific device for alarm capability.
Alarm Input
Refer to Figure 3 -3 for alarm input configuration. The device collects that status of the alarm input
port when the input signal is idle or grounded. If the input signal is connected to the 3.3 V or it is idle
then the device receives the alarm input signal. If input signal is grounded, then no alarm input signal
is detected.
Figure 3-3
Alarm Output – Level Application
Use this alarm output configuration if the output triggers an external device by increasing the voltage.
The alarm must increase the external pull-up resistance to trigger (high level) the device. The
maximum external pull-up level is 5 V and the maximum port current is 5 mA. Once the output
increases the pull-up resistance, the alarm decreases the output voltage to the normal state (low
level) at less than 0.8 V.
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