5. Wiring connection method:
1) Power cable connection method:
Open the cover of the car safety box and measure the voltage with a multimeter. As shown in the figure, the range of the voltage of the car power supply is
between DC11V and 13V. (The multimeter red pen is positive and the black pen is negative.) Find out the positive and negative poles of the power supply.
Description: Normal power supply means that no matter whether the car key is inserted or not, as long as the battery has electricity, this wire has
electricity;
ACC line:
refers to the key from ON to ACC, this line has no electricity, after the key has been screwed to ON, this line has electricity.
Connection method:
The positive pole (red) of the power supply is directly connected to the positive pole of the automobile battery(power), the negative pole is connected to
the negative pole of the automobile battery (i.e. touch iron); the ACC line (yellow) is connected to the ACC line of the automobile.
After the connection is completed, junction point should be wrapped with insulating tape to avoid electric shock and damage of equipment caused by short
circuit.
When the line passing through the corner, connection part or other places of the vehicle, the outer skin of the conductor should be insulated and wrapped
with insulating tape, so as to avoid long-term friction between the conductor and the car, resulting in the wear and tear of the protective adhesive tape of
the conductor ,which might cause short circuit.
Friendly Reminder:
In principle, the first option of power supply is the reserved power of the automobile, and the second is the power of the automobile media audio or
cigarette lighter, as these power supply will not affect other configurations of the automobile. Avoiding wrong wiring can lead to many minor faults.
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