How to see if the power supply voltage of the device is normal?
Source：Shenzhen Kai Mo Rui Electronic Technology Co. LTD2020-06-04
After laying all pipes and wires (network cables, power cables), use a network cable tester and a multimeter to test whether there are breakpoints or signal strength attenuation in the circuit. Under normal circumstances, when testing the power supply circuit, the voltage value of the equipment during normal operation can be reached: plus or minus 10%.
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