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VII.
I/O Configuration
1. I/O Connection
a. Please connect the GND & DO pin to the external relay (buzzer) device.
When no event happens, DO output is 5V (DO and GND are disconnected).
When the camera detects event happening and triggers external alarm, DO
output is 0V (DO and GND are connected).
b. Please connect the GND & DI pin to the external trigger device.
If you select "N.O" in "Input sensor setting", when external devise or circuit
makes DI and GND pin connected, the camera input alarm is triggered,
and then camera will execute the action user has set, for example, send
snapshot to E-mail address.
If you select "N.C" in "Input sensor setting", when external devise or circuit
makes DI and GND pin disconnected, the camera input alarm is triggered,
and then camera will execute the action user has set, for example, send
snapshot to E-mail address.