The IS200EBKP Exciter Back Plane (EBKP) is part of the control module and provides the backplane for the control boards, and the connectors for the I/O terminal board cables.
The IS200EACFG3A supports a single three-phase input voltage in the nominal range up to 1300 V rms.
GE EX2100 IS215ACLEH2A, Application Controll Layer Module, the ACLE models have the assembly level of 215.