Dahua F Series Посібник із швидкого старту - Сторінка 8

Dahua HD Fisheye Panorama Network Camera Quick Start Guide

Please follow the steps listed below for alarm input and output connection.

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

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.

Step 4

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.

Alarm input, output figures:

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".

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.

The working current of alarm output port is recommended as <= 10mA. The max current which is used

to drive external circuit is 80mA, it is advised to add a relay if it is beyond the value.

Figure 1-5

Figure 1-6