D-Link DCS-3220 - SECURICAM Network Camera Product Manual page 91

Using IP surveillance Software (continued)
Monitor Program (continued)
IP surveillance includes DI/DO (Digital Input / Digital Output) control and an
alert message receiver. These features are described in detail below.
DI/DO Control
Clicking on the "DI/DO" button shown below, you can switch to the DI/DO
controls. The color of the channel number indicates the status of the DI (Digital
Input). You can click the "Switch button" to change the HI/LOW state of the DO
(Digital Output). With these features, you can monitor the remote sensor input
from DI and also trigger the camera by DO switch
Set digital output to LOW
Set digital output to HIGH
When the color of a DI/DO number is gray, that means the video has not yet
been connected to a camera.
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No connection