9
Note
Some models do not support alarm function, which cannot be applied to this chapter.
Step 1
Connect alarm input device to the alarm input of I/O port.
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”.
Figure 2-4
Step 2
Connect alarm output device to the alarm output port of I/O port cable.
N1 and C1 or N2 and C2 make up a switch to provide the alarm output, which is shown in Figure
2-5. Generally the switch is on, and it will be off when there is an alarm output.
Figure 2-5
Step 3
Log in WEB interface, make corresponding settings upon alarm input and output on the interface
of alarm setup.
Alarm input of WEB is corresponding to the alarm input of I/O port cable. It is to set
corresponding NO, NC input according to the high and low level signal generated when
alarm happens for alarm input device.
Set alarm output on the WEB, alarm output is corresponding to the alarm output end, which
is the alarm output port of the I/O port cable.
I/O port application (Optional).
Summary of Contents for DH-IPC-HF8242FP-FR
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