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D-Link DVS-210-1 User Manual
Section 5 - Troubleshooting
Example DI/DO Schematic
DI
Receives signals from a reed switch, vibration sensor,
or any other external security device.
DO
Connects to an alarm or buzzer.
485+/485-
Connects to an RS-485 interface for controlling
auxiliary equipment
such as an external camera
enclosure for pan, tilt, and zoom functionality.