DS200TCTGG2A is a TC2000 TMR Simplex Trip Board and is part of the GE Speedtronic Mark V gas turbine control. The DS200TCTGG2A is utilized to regulate a gas turbine that is either heavy-duty or aero-derivative. There are two types of Relays, Primary Trip Relays, and Emergency Trip Relays. In the event of a communication failure, the Primary Trip Relays are employed, while the Emergency Trip Relays are used in the event of an emergency trip. There are 21 plug-in relays, three 50-pin connectors, and two 12-pin connectors on the DS200TCTGG2A. Because of the 21 relays on the TMR Simplex board, it is very fragile.