Quick Start Guide
2
Port
Port Name
Description
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
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 high-level and
to NC if the signal is low-level.
●
The alarm output on the web interface is corresponding to the alarm output end of the
device, which is also alarm output end of the I/O port.
