![D-Link DCS-3420 User Manual Download Page 102](http://html.mh-extra.com/html/d-link/dcs-3420/dcs-3420_user-manual_75344102.webp)
10
D-Link DCS-340 User Manual
Section 3 - Configuration
To view an individual camera from the multi-camera layout, double-click on the desired display window. You will see that
the size of the display window is the same as the one-channel layout. Clicking the Back button in the upper-left corner
of the video area will switch to the previous selected multi-camera layout.
The position that each video channel is in for every layout will be saved for the next time the layout is selected.
Input/Output Control Tools
IP surveillance includes DI/DO control (Digital Input / Digital Output) control and an alert message receiver. Each of
these are described in detail on the following pages.