Dahua N6 2U Series Quick Start Manual

Dahua N6 2U Series Quick Start Manual Manual pdf 26 page image

22NoteUsually, system can playback previous N seconds record if there is such a kind of record file.Otherwise, system playbacks from the previous X seconds when there is such a kind of record.z Mark ManagerClick the mark manager button on the Search interface (Figure 2-12); you can go to MarkManager interface. See Figure 2-16. System can manage all the record mark information ofcurrent channel by default. You can view all mark information of current channel by time.Figure 2-16z ModifyDouble click one mark information item, you can see system pops up a dialogue box for you tochange mark information. You can only change mark name here.z DeleteHere you can check the mark information item you want to delete and then click Delete button,you can remove one mark item. .Notez After you go to the mark management interface, system needs to pause current playback.System resumes playback after you exit mark management interface.z If the mark file you want to playback has been removed, system begin playbacking from thefirst file in the list.2.4.4 Multiple-channel PreviewRight click mouse and then select multiple-channel preview; you can go to the followinginterface. See Figure 2-17. Here you can enable and set multiple-channel preview so thatyou can view several video at one channel.