The adapter allows you to perform comprehensive measurements of electric vehicle charging stations - quickly and in accordance with applicable regulations. By simulating the charging cable (proximity pilot - PP line) and vehicle connection status (control pilot - CP line), it will put the station into different working states. In this way, it will enable measurements in the field of electric shock protection: short-circuit loop impedance ZS, insulation resistance RISO and checking the parameters of RCDs. To facilitate diagnostics, one of the EVSE-01 sockets also has a pulse width modulation (PWM) signal.