Vivotek SD9161-H-v2 2MP PTZ Network Dome Camera - Manual (Page 69)

VIVOTEK
User's Manual - 69
Turn on external IR illuminator in night mode
Select this to turn on the external IR illuminator when the camera detects low light condition and enters
the night mode. A Digital Output connection to external IR is needed.
Turn on built-in IR illuminator in night mode
Select this to turn on the built-in IR illuminator when the camera detects low light condition and enters the
night mode. The trigger is usually made through a digital output connection.
Illuminators