EMUS G1 CAN Filter is a device that isolates/separates internal and external CAN buses, therefore minimizing CAN bus utilization (bus load) and is used in EMUS G1 Clustered systems, where two or more Control Units are connected in a CAN bus line. The device has external and internal CAN bus terminals. The internal CAN bus terminal connects to the internal BMS network, which consists of the EMUS G1 Control Unit, CGMs/CCGMs, and possibly other CAN devices. Common CAN bus connects to other CAN Filters, 3rd party CAN devices.