DS200QTBAG1A is an RST Termination Board and is part of the GE Speedtronic Mark V gas turbine control system. The QTBA board contains the IONET and COREBUS, communication connections, and screw terminations for LDTV Excitation, servo inputs, pulse rate inputs, and a WATT / VAR transducer input. QTBA is located in locations L6 R, S, and T - Cores. The QTBA terminal boards land the signal used by the TCQC board in the respective cores.