Interlogix TruVision TVD-2401 Installation Manual page 7

Note:
Please check the camera output settings
before setting up a system. The TVI video
output can be only connected to DVR with
TVI signal input. The CVBS output supports
the standard monitor, test monitor, encoder
and DVR.
For TVD-2403/TVD-4403, you can connect
the white and black line ends of the WDR
switch cable to enable the Wide Dynamic
Range function. The WDR function is
disabled by default. If WDR is enabled, the
CVBS output will be blocked out, and only
TVI output is available.
Installation Guide 7