Main Functions
· Test the information of the standard PoE device, such as afat standard, power supply voltage, power supply polarity, and crossover mode.
· Identify the supply voltage, power supply polarity, and crossover mode of non-standard PoE devices.
· Check the short circuit, crossover and open circuit status in the network cable with the far end.
· Test the power consumed by DC appliances.
. The loop-back test function of the switch.