Robustel R5020 User Guide
RT_UG_R5020_v.1.0.2 Mar. 17, 2023 24/167
2.12 Power Supply
With Ignition Sensing
Connect adapter or battery positive (red line)
Connect adapter or battery negative (black)
Car ignition and flameout detection (green line), when the car
ignition and flameout detection function is not used, the ACC
pin is connected to the power supply and cannot be left
floating.
Note: Please connect the ACC pin of
R5020 to the VCC of power supply
without being floated, when you do
not use the car ignition and flameout
detection function.