Vivotek ND9542P 32-Channel 4K UHD NVR (No HDD) - Manual (Page 105)

VIVOTEK - Built with Reliability
User's Manual - 105
Recording options
On the camera Recording page, you can configure the following:
1. Configure the duration of camera events, for the concern that camera can be too
frequently triggered.
2. Enter the Pre- and Post-event recording time. The triggering events can be DI, DO,
Motion detection, PIR, or Tampering detection. A recording length of 10 seconds of
pre-event and up to 300 seconds of post-event can be configured.
3. The default recording stream is Main Stream. You can still change the streaming
characteristics. Note that you can not assign the recording task to other video
stream.
4. Enable or disable audio recording. Note that audio transmission through HDMI
cable is currently not available.
5. Change the life expectancy of the recording data.
6. You can apply a typical configuration to all cameras using the Apply to all cameras
checkbox.
Dual stream recording is also supported if the need should arise.
3-5-3. Settings–Camera–Recording
You can refer to the User Manuals that come with your network cameras for more
discussions of these configurable options.