Dante DNA1425T, Инструкция по установке и эксплуатации, Страница: 10 / 124

Figure 1-5 Alarm
Alarm input, output connection description:
Step 1 Connect alarm input device to the alarm input of I/O cable.
Step 2 Connect alarm output device to the alarm output of I/O cable, alarm output is collector
open circuit output which connects 10K resistor to 3.3V externally.
Step 3
Step 4
Open the Web, set alarm input and output correspondingly. Alarm input on WEB
corresponds to I/O cable on device. When there is alarm, alarm input device will
generate signal of high and low level. Set corresponding NO and NC inputs.
Set the WEB alarm output. The alarm output is for the alarm output port of the device. It
is the alarm output port of the I/O cable.
Please refer to the following figure for alarm input information. See Figure 1-6.
Alarm input: When the input signal is idle or grounded, the device can collect the different
statuses of the alarm input port. When the input signal is connected to 3.3V or it is idle, the
device collects the logic “1”. When the input signal is grounded, the device collects the logic “0”.
Figure 1-6
Please refer to the following figure for alarm output information. See Figure 1-7.
When alarm output is OC, it needs to increase pull-up resistance externally to work normally;
output signal is high and low level. After external pull-up resistance is increased, the default of
output signal is high level, and it switches to low level when there is alarm output.
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