What is the definition of the four wires in a rearview camera?

1 Answers
LeJace
07/30/25 6:13am
DC power plug connects to the reverse light, generally only the red wire is connected, along with the red wire on the RCA plug, providing the signal for reverse video conversion to the main unit. The RCA lotus plug transmits the video signal from the camera to the main unit. Below are specific details about the reversing camera: 1. Selection of reversing camera: (1) For use in sedans, consider the camera model (optional waterproof and night vision features), screen size (3, 5, 7 inches), power voltage (12-V), while for large vehicles like trucks and buses, 24-V is sufficient. (2) For large vehicles, selection should be more cautious. The operating conditions of large vehicles differ significantly from sedans. For example: harsh driving environments on construction sites, extreme temperatures, high frequency of reverse gear usage, and long working hours. Large vehicles generally have a power voltage of 24-V, so reversing cameras designed for sedans cannot be used. Therefore, when selecting a product, ensure to choose the right one, not based on price or other factors. 2. Precautions: When selecting a reversing camera, pay attention to whether it matches your vehicle model. Considerations include camera model, power voltage, screen size, waterproofing, shock resistance, and anti-interference capabilities.
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