GE IS200EMIOH1AFB Exciter Main Input/Output CardDescription The IS200EMIOH1AFB serves as a central interface for managing input and output signals in GE's EX2100 Excitation Control System. It handles various signal types, including PT (Potential Transformer) and CT (Current Transformer) signals, contact inputs, and output relay drivers. This module is essential for ensuring efficient communication and control within the excitation system. Specifications Type: Exciter Main I O Card Series: EX2100