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3.7.2 Looping
video
The DVR supports looping video. It passes the video input to a monitor or other
analog video device.
To use looping video:
1. Connect a coaxial cable to the video out connector on 37-pin interface
Please note you need to use a BNC installation tool to connect coaxial cables to the
rear panel.
2. Connect the other end of the coaxial cable to the analog device.
3.7.3
Matrix
Video
Output
Use video matrix output connector during installation to display video sequentially
from each video input. The unit displays each channel for selected seconds. You can
use this feature to verify camera installation.
To display video from each connected video source:
1. Connect a video monitor to the video matrix output connector.
2. Turn the DVR on, the monitor, and each video matrix output source.
3. Verify the video from each source and troubleshoot as necessary.
Please refer to Figure 3-5.
Figure 3-5
3.7.4 Alarm Input and Relay Output
This series DVR offers 4/8 alarm inputs for external signaling devices, such as door
contacts or motion detectors. Each alarm input can be either normally open or
normally closed. Once configured, an alarm input can invoke many different activities,
including triggering a relay device, sending an alert to a security office or storing pre-
alarm video to the DVR.
3.7.5 Alarm
Input
You should check your alarm input mode is grounding alarm input or not.
For this series DVR, grounding signal is needed for alarm input.
If you need to connect two units or one DVR and other device, please use a relay to
separate them.
Please refer to Figure 3-6 for more information.
