Dahua 40212IC Manual de início rápido - Página 11

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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.

Alarm Output – Switch Application

The alarm output drives the external circuit, with a maximum current of 30 mA and a maximum

voltage of 5 V. It is recommended to add a relay if the circuit exceeds the maximum values.

Figure 3-3

Figure 3-4