User Manual

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2.3 Power cable and extension cable
 Yellow line to power （ACC）
 Black line to power -
 Red line to ignition switch +
2.4 I/O Alarm input/output
There are 4 alarm input and 1 alarm output port on the device. Alarm inputs are all
level detection, can be connected to vehicle status outputs, such as reverse or steering
horn. Brake detect drawing is as follows, when the brake pad is stepped on, MDVR
will detect high level, otherwise low level is detected.
Fig.1 Brake detection drawing
Alarm output is 12V level output, driving capacity is 200mA, if element with large power is
to be driven, relay should be connected, alarm output optical alarming drawing is as follows.
Fig.2 Alarm device connection drawing
To MDVR
sensor input
B- light
+24V
Brk- pad
24V
MDVR alarm output