Dahua Technology DH-IPC-EBW81242N-AS-S2 12MP Outdoor Network Panoramic Fisheye Camera with Night Vision - Manual (Page 105)

Operation Manual
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Figure 7-10 Face mode
● Select Metadata Mode from the display mode drop-down list.
Make sure that you have enabled video metadata detection function.
Figure 7-11 Metadata mode
● Select ANPR from the display mode drop-down list.
Make sure that you have enabled ANPR function.