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3 Trigger Input /Output Configurations
3.1 Input/Output Location & schematic
Application for use of this feature: The QSD-722 can connect to external devices such as smoke detectors,
pressure detectors, vibration detectors, and door/window sensors to trigger recording, or GSM alarm and
buzzer function of the alarm.
Location and pole position
Pin 1: 2.8V, 100mA (max) Power Out
Pin 2: Ground
Pin 3: Trigger in + (positive)
Pin 4: Trigger in – (Negative)
Pin 5: Trigger out + (Positive)
Pin 6: Trigger out – (negative/Ground)
3.2 Power output to external device:
Function of having power out: It can supply power to an external device.
Note
:
1. No need to use this power out if the external device has already had its own power supply.
2. Power out (Pin 1): Voltage is 2.8V. The maximum output current is 100mA.
