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3.21 Alarm Settings
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DVR has three alarm (Trigger) Inputs. These are labeled Senor 1,2,3, in the Alarm menu. These
Triggers use the Gray colored wires on the wire harness. See the module for designation number.
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Triggers can be Positive DC (High) or Negative DC (Low).
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Trigger Level: If the trigger level is set to high, a high-level voltage on the sensor will trigger an
alarm. You can check the “Trouble Shooting” at the end of this manual for the definition on the
high level and low level.
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User can set up the alarm recording for these events.
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Alarm OSD: The title user wants to display on the screen and be recorded with the video.
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Alarm Buzzer: Enable/Disable buzzer when there is an alarm.
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Switch View: Choose one camera to be in full-screen mode when there is an alarm. This can be
used for rear view full screen or side view full screen. For example, user can connect sensor 1 to
a reverse
signal, and if camera 1 is the rear view camera, we can set the “switch view” for sensor
1 to 1. In this way, when the vehicle is reversing, camera one will be displayed as a full screen on
the monitor.
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Switch View Delay: The DVR will continue to show the camera selected until the alarm is not
triggered for specified delay time. This is useful for the side view camera. For example, if the left
side camera is camera 2, and the user connects sensor 2 to the left turn signal on the vehicle.
When the driver is turning left, the sensor two-alarm will be triggered. Set the switch view delay
for 5 seconds or more to remain on while the turn signal is flashing.
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Pre-Record Time: The amount of recorded time retained before the alarm is triggered.
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Post-Record Time: The amount of recorded time retained after the alarm is triggered.
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All of the alarm recorded files will be kept in a separate alarm folder; the files in the folder will
not be overwritten.
