Installation Instructions for GPS Host Wire.portable gps tracker distributors

　　Positive pole of the power supply (red): The installation of the positive pole of the power supply usually needs to be connected to the positive pole of the battery or the main power input line of the fuse box (+12V). During the installation process, it is necessary to choose thicker (+12V) wires to be connected in parallel and insulated properly. (Note: It should be coarse rather than fine.)

　　Negative electrode of power supply (black): The metal of the car body itself is a negative electrode. Usually, the installation personnel choose a screw nearby and loosen it, then tie the negative electrode wire to it, and then tighten it. However, after a long period of time, oxidation of the connection points may occur, causing poor equipment operation. Nowadays, most cars perform anti oxidation treatment on one or more screw positions near the equipment that need to be connected to the negative electrode. The negative electrode wires of nearby electrical equipment are concentrated in parallel and then grounded at multiple points to ensure a reliable negative electrode grounding. So, we should try not to use the method described by the former when connecting the negative wire. Try to find the midpoint of the negative wire of the original vehicle electrical equipment as much as possible, and connect the negative wire of the terminal to the negative wire of the original vehicle equipment. Ensure the normal operation of the terminal by utilizing the grounding point of the original vehicle. (Note: Same as the (+12V) power cord, it should be thick rather than thin.)

　　ACC detection line (white): The ACC installation line of F300 is mainly used to provide a signal detection line for judging the status of the vehicle's electronic control key (explanation: the electronic control key is the power supply mechanical device that controls the entire vehicle's electrical equipment). Before the electronic control key is inserted into the keyhole, the entire vehicle's circuit and electrical system are almost in a power off state; When the key is inserted and turned forward one gear (i.e. ACC gear), some devices on the vehicle can be powered on. The ACC installation line (white) of F300 is connected in parallel to this line.

　　Door edge detection (blue): The door edge detection line of F300 mainly provides a signal detection line for this device to determine the status of the original door opening/closing. This detection line is a negative trigger detection line. When the original door is opened, the line and the original vehicle line are directly connected to the vehicle body, and the original roof light is on; When the car door is closed, the detection line and the original car switch are disconnected from the vehicle body, and the original roof light goes out.

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