IS200BPIBG1A is an A-G printed circuit board component used as a phase logic module in the Mark VI series. Mark VI is one of the latest Speedtronic systems released by General Electric for gas and steam turbine management. Since the late 1960s, these systems have been used for heavy-duty turbine management.

IS200BPIBG1A aims to capture faults found on the gate driver board and report these faults to the board that will handle them. Some faults are handled by IS200BPIBG1A. This board is also used to provide signal conditioning for the logic signal control of the interface P1 connector, in order to shunt feedback and gate drive the board.

IS200BPIBG1A features a narrow black front panel design. This board is printed with the logo of General Electric. IS200BPIBG1A is designed for insertion into VME type racks. This is achieved through the P1 connector located on the back edge of the motherboard. The board is also connected to several IGBT boards through six plug connectors. Five plug-in connectors (located behind the front panel) are used to detect A/B/C phase sensing signals and DC link positive and negative signals. It is worth noting that IS200BPIBG1A does not have LED indicator lights, fuses, or TP test points.

IS200BPIBG1A has a serial 1024 bit storage chip used to track board identification and version information. This board also has over 30 other integrated circuits, including oscillation chips. It has four transistors, three transformers, and sixteen resistor network arrays. Most of the resistors used on this board are made of metal thin film materials.