Interlogix TVB-2402 Installation Manual page 7

CVBS output supports the standard monitor, test
monitor, encoder and DVR.
For TVB-2402 / TVB-4402, the CVBS and TVI
output can not be performed at the same time, you
can use the built-in DIP switch to select the camera
video output.
For TVB-2404/TVB-4404, the built-in DIP switch is
used to enable/disable WDR feature, when WDR
feature is enabled, the CVBS output will be blocked
out.
Installation Guide
DIP switch
Menu button
5