Interlogix TVB-2402 Installation Manual page 14

Please set the built-in DIP switch to CVBS for
viewing the program on a standard monitor.
When the programing is finished, you may change
the DIP to WDR to enable the WDR feature. In such
case, the CVBS output will be blocked out.
If the DIP is set as CVBS, the WDR feature will be
disabled, and the camera has CVBS and TVI output
available at the same time
12 Installation Guide