Digital Input; Digital Output - Axis 2120 User Manual

AXIS 2120 User's Manual The Unit Connectors
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Digital Input

Used for connecting external alarm devices and triggering images for specific alarm-based
events, the digital input is typically connected to a motion detector (or any other external
security device) for taking images on each occasion that the detector is activated.

Digital Output

The supported transistor output can drive a maximum load of 24V DC at 100mA directly,
and by connecting additional relay circuitry, can drive even heavier loads.From the
Administration Tools you use ON/OFF buttons in the Layout settings to drive the output
high or low.