MDVR-4F3AHD mini (LAN/WiFi/GPS)
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The MDVR power line suggests direct connection to the positive and negative pole
of the vehicle battery, or the battery is connected to the positive and negative
pole after the safety box is connected. No connection to the metal conductor inside
the car as the ground, otherwise it will produce negative pulse interference normal
operation of the host, the positive and negative power supply wire diameter must
be more than 1.5mm. The installation host installed the equipment level to the
suitable position in the car according to the size of the hole position.
Step3
：
Alarm input and output line
A
：
Overspeed alarm connection
A:If the vehicle chooses the speed of GPS acquisition and requires the GPS signal to be normal, only the
relevant settings in the system menu, alarm settings and speed settings can realize the alarm function
。
B:If the speed is chosen from the vehicle, the speed pulse sensor must be connected to the speed alarm. The
pulse sensor receives two lines of SPEED-A and SPEED-B on the port of our device. The connection schematic
diagram is as follows
：
B
：
Alarm output connection
This machine provides 1 way alarm output, and uses the level output 200MA current to drive the external
alarm equipment. If you want to drive a more powerful device, you must connect the external relay, and refer to
the diagram as follows
。
24V
MDVR Alarm out
