The I/O communication module is designed for wiring via a terminal strip in the control cabinet. The I/O communication module must be supplied with power via the control cabinet of the respective engine. For this purpose, use the wires L– and L+ of the left relay connector .
To ensure error-free device communication in the CAN bus, make sure that the potential difference between the voltage supply grounds of the I/O communication modules and the EasyNOₓ is as small as possible.