HIKVISION DS-7208/16HWI-SV, User Manual, Page: 102 / 261

User Manual of Digital Video Recorder
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Figure 6. 6 Result of Video Search by Alarm Input
5. Click button to play back the record files.
You can click Back to return to the search interface.
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.
If there is only one channel is triggered by an alarm input, clicking button takes you to Full-screen
Playback interface of this channel.
If several channels are triggered, clicking button takes you to the interface. Check checkbox to
select one channel for playback or select multiple channels for synchronous playback.
For DVR series, 4-ch, 8-ch and 16-ch devices support 4-ch, 8-ch and 16-ch synchronous playback
respectively. While for HDVR series, 4-ch, 8-ch, 16-ch devices support 8-ch, 16-ch and 16-ch synchronous
playback respectively.