This DS200TCTEG1ABA printed circuit board product offering from General Electric's Mark V Turbine Control System Series is loosely-defined in barely-existing Mark V Series literature as a TC2000 Trip Board.
IS200FHVBG1ABA exists as a modified version of the original IS200FHVBG1 parent board, and features three total significant product revisions, including two functional revisions and an artwork revision.
The IS200EMCSG1AAB is a small board with few components. It functions as a Conduction Sensor and has four conduction sensors built into the front half of the board.