Dahua F Series Quick Start Manual - Page 9

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Dahua F Series Quick Start Manual
Dahua HD IR Bullet Network Camera Quick Start Guide
Please refer to the following figure for alarm output information. See Figure 1-5 and
Figure 1-6.
Mode A:
Level application. Alarm output high and low level, alarm output is OC; it needs to
increase pull-up resistance externally to work normally. Max external pull-up level is 12V,
max port current is 300mA (peak). After external pull-up resistance is increased, the
default output signal is high level (external pull-up voltage), and it switches to low level
when there is alarm output.
Mode B:
Switch application. Alarm output is used to drive external circuit, max voltage is 12V and
max current is 300mA (peak), it is recommended to add a relay if it is beyond the value.
Figure 1-5
Figure 1-6
4