DVR systems DVRxx04HF-A Series - Manual (Page 129)

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Figure 7-26
Figure 7-27
Please refer to the following sheet for detailed information.
Parameter Function
Channel
Here is for you to select a monitor channel.
Channel Name Here is to display current channel name. You can modify it.
Compression H.264
Main Stream It includes main stream, motion stream and alarm stream. You can
select different encode frame rates form different recorded events.
System supports active control frame function (ACF). It allows you to
record in different frame rates.
For example, you can use high frame rate to record important events,
record scheduled event in lower frame rate and it allows you to set
different frame rates for motion detection record and alarm record.
Extra Stream Select extra stream if you enabled the extension stream to monitor.