BASIC FUNCTIONS QT518 & QT5116 User Manual20 | P a g e3.3.5 Sensor Alarm Recording (Optional)This unit supports recording channels and PTZ linking after an alarm sensor has triggered recording.Step 1: Enter ALARM configuration, see Fig 3.14 Sensor Alarm Setup. Select camerasFig 3.14: Sensor Alarm SetupStep 2: Enable Detection first. Set Device type (NC: Normally Closed or NO: Normally Open).Step 3: Enter Trigger configuration. Set alarm out, recording cameras and linked PTZ (refer to 3.3.4 Motion DetectionRecording).Step 4: Set Alarm in hold time. It is the interval time between the two consecutive alarms. This is similar with Holdtime in MOTION configuration.Step 5: Set Alarm out hold time and Buzzer hold time. Click OK to save settings.Step 6: Enter SCHEDULE configuration. Select Sensor and cameras to set (Refer to Fig 3.9: Schedule Setup).Note: Users can not chose the preset and auto cruise options at the same time.3.4 PlaybackThis unit supports time search and event search. It displays full or 4 screens in playback. Right click mouse button toshow the control bar (refer to Fig 4.1 Control Bar). Click Search, the window below will appear on the screen.