GE IS200EMIOH1AFB – EX2100 Main I/O Board (EMIO)

Product Information

Overview

The GE IS200EMIOH1AFB is a Main Input/Output (I/O) Board designed for use within the EX2100 Series Excitation Control System. Manufactured by GE Industrial Systems, this module serves as a revised version of the original IS200EMIOH1 PCB, with key functional and artwork revisions (A, F, B) that enhance its capabilities and adaptability.

Engineered to handle various signal types and interconnect with multiple submodules, the IS200EMIOH1AFB plays a central role in the system’s excitation control infrastructure.

Key Functions

• Signal Management:
  Interfaces with multiple EX2100 boards to process a variety of I/O signal types including:

• PT (Potential Transformer) signals

• CT (Current Transformer) signals

• Contact inputs

• Output relay drivers

• Pilot trip relay drivers

• Gate Pulse Signal Transmission:
  Sends logic-level gate pulse signals to the ESEL board, which then routes signals to the EGPA module located in the Power Conversion Cabinet.

• Module Interconnections:
  Supports communication with the following EX2100 boards:

• EPCT (Exciter Power Control Terminal)

• ECTB (Exciter Control Terminal Board)

• EACF (Exciter AC Feedback)

• EXTB (Exciter Terminal Board)

Physical Characteristics

• Board Type:
  Single-slot, double-height VME rack-mounted PCB

• Installation:
  Designed for use in GE-standard VME installation racks

• Coating:
  Protected with conformal coating, which fully encapsulates all hardware components for enhanced environmental durability and electrical insulation

Revision Notes

The IS200EMIOH1AFB includes three product revisions:

• A (Functional Revision 1)

• F (Functional Revision 2)

• B (Artwork Revision)

These revisions may result in performance or compatibility variations compared to the original IS200EMIOH1 base board.

Conclusion

The GE IS200EMIOH1AFB EMIO Board is a vital control interface in the EX2100 Excitation Control System, offering robust signal handling, reliable communication between subsystems, and improved protection through conformal coating. Its modular and revised design ensures compatibility and long-term performance in demanding industrial environments.