Dahua HCVR5104C User Manual page 449

4.9.3.9 Abnormality
There are four types: HDD/Network/User/Device. Please note device interface is for
some series only.
HDD: HDD error, no disk, no space. See Figure 4- 164 and Figure 4- 165.

Network: Disconnection, IP conflict, MAC conflict. See Figure 4- 166.

User:Illegal login. See Figure 4- 167 .

Device: High temperature, fan speed abnormal. See Figure 4- 168.

Alarm output: Please select alarm activation output port (multiple choices).

Less than: System can alarm you when the HDD space is less than the threshold

you set here (For HDD no space type only).
Latch: Here you can set corresponding delaying time. The value ranges from 0s-300s.

System automatically delays specified seconds in turning off alarm and activated
output after external alarm cancelled. When the value is 0, there is no latch time.
High temperature: In Device interface (Figure 4- 168), select High temperature from

the dropdown list, and then input the max temperature. The value ranges from 30℃～
90℃. Device can trigger an alarm once the case temperature is higher than the value
you set.
Fan speed abnormal: In Device interface (Figure 4- 168), select Fan speed abnormal

from the dropdown list, and then click the OK button after the Fan calibration. It can
correct fan manually. Please note we recommend this function after you replaced or
maintained the fan.
Show message: system can pop up the message in the local screen to alert you

when an alarm occurs.
Alarm upload: System can upload the alarm signal to the network (including alarm

center) if you enabled current function. For disconnection event, IP conflict event
and MAC conflict event, this function is null.
Figure 4- 163
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