Dahua HCVR5104C Series - Page 436

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5.8.3.5 Abnormality
It includes three types: HDD/Network/User. See Figure 5-77 and Figure 2-77.
 HDD includes: No disk, disk error, disk no space.
 Network includes net disconnection, IP conflict, and MAC conflict.
 User: It includes illegal login.
Figure 5-77
Figure 5-78