Advanced; Di And Do - D-Link DCS-1201 User Manual

Section 3: Configuration
This screen allows you to control the behavior of digital input and digital output devices. The I/O connector provides the physical interface for
digital output (DO) and digital input (DI) that is used for connecting a variety of external alarm devices such as IR-Sensors and alarm relays. The
digital input is used for connecting external alarm devices and once triggered images will be taken and e-mailed. After making any changes, click
the Save Settings button to save your changes.

DI and DO:

D-Link DCS-1201 User Manual

Advanced

DI and DO
The camera can receive signals from an external device,
and can send a signal when an event is triggered. Specify
whether you want the active state to be N.C. or N.O. for
the digital input and digital output ports.
N.C. stands for Normally Closed. This means that the
normal state of the circuit is closed. Therefore, events are
triggered when the device status changes to "Open."
N.O. stands for Normally Open. This means that the
normal state of the circuit is open. Therefore, events are
triggered when the device status changes to "Closed."
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