The ECUMASTER USBtoCAN is a USB interface that allows the user to connect to the CANbus network. It supports CAN 2.0A and CAN 2.0B standards. It is equipped with a LED status diode for fast diagnostic and a 120 Ohm terminator that can be switched on or off to relieve the user from applying external terminators. This device is used to communicate with the PMU. A version with galvanic isolation is also available.