The Mark V Speedtronic DS200TCDAG1B is a Mark V Speedtronic Digital I/O Board.The DS200TCDAG1B has one microprocessor and multiple PROM modules.All Digital inputs or contact inputs are terminated and conditioned by DS200TCDAG1B.The DS200TCDAG1B has one block that consists of ten LED lights and a pair of pin connectors.This I/O Board also has seven connectors.