Patent ID: 7923988

Claim:
A test equipment to test power over Ethernet (PoE) function of an Ethernet device, the test equipment comprising: a first connector to receive data signals and power signals transmitted by the Ethernet device, the first connector comprising: a first group of pins to transmit the data signals and the power signals; a second group of pins comprising two positive power pins and two negative power pins to transmit the power signals; a second connector; a data signal transmission circuit connected between the first group of pins of the first connector and the second connector to transmit the data signals to the second connector, and to transmit the power signals; a first polarity determination circuit configured to receive and output the power signals when the power signals are transmitted by the data signal transmission circuit; a second polarity determination circuit configured to receive and output the power signals when the power signals are transmitted by the second group of pins of the first connector; and a notification circuit configured to generate a notice to indicate the PoE function of the Ethernet device is normal when receiving the power signals output by the first or second polarity determination circuit.