IS230TBAI1CH02 is an Analog Input/Output Terminal Board developed by GE. It is a part of the Mark VIe control system. The board is designed to accommodate 10 analog inputs and 2 analog outputs. These inputs and outputs play a crucial role in transmitting and receiving analog signals for monitoring and control purposes. In TMR applications, the terminal board combines the current from the three connected output drivers and determines the total current using a measuring shunt. This total current signal is then presented to the VAICs for regulation to the commanded setpoint. This TMR configuration enhances system reliability and availability by providing redundant control signals and fault detection capabilities.