4
At the PC-end, speak via the speaker or MIC, and then you can get the audio from the earphone
or sound box at the device-end.
1.4 Alarm Setup
The alarm interface is shown as in Figure 1-4.
Figure 1-4 Alarm
Please follow the steps listed below for local alarm input and output connection.
1) Connect the alarm input device to the alarm input port (No.3 pin or No.4 pin) of the I/O cable.
2) Connect the alarm output device to the alarm output port (No.2 pin) and alarm output public
port (No.1 pin). The alarm output port supports NO (normal open) alarm device only.
3) Open the Web, go to the Figure 1-4. Please set the alarm input 01 port for the first channel of
the I/O cable (No.3 pin). Then you can select the corresponding type (NO/NC.)
4) Set the WEB alarm output. The alarm output 01 is for the alarm output port of the device. It is
the No.2 pin of the I/O cable.
1.4.1 Alarm IN/OUT Connection
Please refer to the following figure for alarm input information. See Figure 1-5.
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 the 5V or is idle, the
device collects the logic “1”. When the input signal is grounded, the device collects the logic “0”.
