Quick Start Guide
2
Table 1-2 Alarm information
Port
Port Name
Description
Alarm I/O
ALARM_IN
Receives the switch signal of external alarm
source.
Connect different alarm input devices to the
same ALARM_IN_GND port.
ALARM_IN_GND
ALARM_OUT
Outputs alarm signal to alarm device.
When connecting to alarm device, only the
ALARM_OUT port and ALARM_OUT_GND port
with the same number can be used together.
ALARM_OUT_GND
1.2 Connecting Alarm Input/Output
The camera can connect to external alarm input/output device through digital input/output.
Alarm input/output is available on select models.
Step 1 Connect alarm input device to the alarm input end of the I/O port. See Figure 1-2.
Device collects different states of alarm input port when the input signal is idling and
being grounded.
● Device collects logic "1" when input signal is connected to +3V to +5V or idling.
● Device collects logic "0" when input signal is grounded.
Figure 1-2 Alarm input
Step 2 Connect alarm output device to the alarm output end of the I/O port. The alarm output
is relay switch output, which can only connect to NO alarm devices.
NO1 and COM1 or NO2 and COM2 constitute a switch to provide the alarm output,
which is shown in Figure 1-3.
The switch is open normally and closed when there is alarm output.
Figure 1-3 Alarm output
Step 3 Log in to web interface, and configure alarm input and alarm output in alarm setting.
● The alarm input on the web interface is corresponding to the alarm input end of the
I/O port. There will be high-level and low-level alarm-signal generated by the alarm
input device when alarm occurs, and set the input mode to NO if the signal is
