31H1169 installation and user manual2-3. Event ConfigurationUse this menu to configure the motion & alarm settings.[ Motion ]Motion On/Off [①]Specify whether to use motion input or not.Motion Sensitivity [②]Low / Middle / HighMotion Area [③]Define the motion detection area.1) Click the “Set” to setup the motion detection grid per channel.The detection area is divided into cells. Default is all cells in active mode.2) Select cells and toggle them on and off.Click icons (⑥) if you want to select the motion area by the block.** The motion detection is not recommended for external cameras.[ Alarm ]Sensor On/Off [④]There are 16 alarm(sensor) inputs on the rear of the unit.Click the check box to enable each sensor.Sensor Type [⑤]Select the sensor type; NO(Normally Open) or NC(Normally Closed)① ② ③ ④ ⑤⑥