Caution
Because the available frame rates differ depending on the camera, click [V] next to [Frames/second], and select a frame rate available for the camera from the list that appears. Make sure to confirm operation before operating NSR.
Note
For MPEGs, when the frame rate set here is less than the frame rate set under “Main” in “Camera,” the latter is applied.
Pre Duration
Specify from how far back prior to the alarm to record images.
Caution
Pre Alarm recording cannot be performed for audio.
Note
The maximum Pre Alarm recording time is subject to both of the following restrictions:
•Total number of frames: 1,500 frames
•Data size: 5 MB1) 2)
1)Under the following conditions, about 6 seconds of Pre Alarm recording can be performed for every 1 MB.
•VGA, JPEG at 5 fps
2)When Generic Camera is selected under the following conditions, the maximum data size increases to 20 MB in order to accommodate the Pre Alarm recording time.
•Horizontal image resolution: 1,280 pixels or more
•Pre Alarm recording time: 3 seconds or more
•Frame rate: 5 fps or more
Post Alarm
If you want to record the images after the alarm occurs, configure the following settings.
Duration
Specify the duration for post alarm recording.
Fixed Duration
Select the starting point for the post alarm duration.
•When [Alarm Start] is selected, recording is performed for the specified duration from the moment an alarm starts.
•When [Alarm End] is selected, recording is performed for the specified duration from the moment an alarm ends.
Chapter 5 Settings 139