AC power port Power ports, which according to the manufacturers specification are not intended to be connected to power supply equipment with a cable longer than 3 m, shall not be subjected to these tests. DC power port Power ports, which according to the manufacturers specification are not intended to be connected to power supply equipment with a cable longer than 3 m, shall not be subjected to these tests. Signal line port It only applies when the overall cable length between the EUT and another item of active equipment may be greater than 3 m |