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Mobile Digital Video Recorder User Manual
Device
Automobile Power System
ACC
DC IN
Wiring of Device
+
-
Point of Connection
Automobile Power Switch
Positive Pole
Negative Pole
Automobile
Battery
Figure 2-9 Scheduled Shutdown
2.4 Alarm Input/Output Connection
2.4.1 Alarm Input Connection
The device adopts the high/low-level electrical signals triggering (high level: 6 to 36 VDC; low level:
0 to 5 VDC) to realize alarm input. And in order to avoid error report caused by voltage fluctuation,
no alarm will be triggered by voltage ranging of 5 to 6 VDC.
Figure 2-10 Alarm Input Connection
The number of alarm input varies with device model.
2.4.2 Alarm Output Connection
Follow the figure bellow to wire alarm output.
n and n# are a pair of alarm output. You can connect them with a relay alarm device. When the
voltage of connected alarm device exceeds the valid alarm output range, you need to connect a
relay to protect alarm output.
15
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