Operation Manual

User Manual of Digital Video Recorder
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6. Event playback interface.
The toolbar in the bottom part of Playback interface can be used to control playing process.
Figure 6. 8 Interface of Playback by Event
Pre-play and post-play can be configured for the playback of event triggered record files.
Pre-play: The time you set to play back before the event. For example, when an alarm triggered the
recording at 10:00, if you set the pre-play time as 5 seconds, the video plays back from 9:59:55.
Post-play: The time you set to play back after the event. For example, when an alarm triggered the
recording ends at 11:00, if you set the post-play time as 5 seconds, the video plays back till 11:00:05.
7. You can click or button to select the previous or next event. Please refer to Table 6.1 for the
description of buttons on the toolbar.
6.1.4 Playing Back by Tag
Purpose:
Video tag allows you to record related information like people and location of a certain time point during
playback. You are also allowed to use video tag(s) to search for record files and position time point.
Before playing back by tag:
1. Enter Playback interface.
Menu>Playback
2. Search and play back the record file(s). Refer to Chapter 6.1.1 Playing Back by Channel for the detailed
information about searching and playback of the record files.