This DC-BUS evaluation board (EVB) Tester is a tool for quick evaluation of the new DC Power line communication devices and EVBs. Upon power up, the EVB Tester configures its connected EVB to the desired operation parameters according to its switches (Frequency, coding, etc.). The transmitting EVB Tester generates test messages that are conducted by its connected EVB over the power line. At the receiving side, the EVB Tester analyze the received test messages for errors. The EVB Tester can interface with a PC via USB port for advance tests. An optional DC Powerline Attenuator allows performing communication tests over controlled attenuation channel.