الوصف
The GE IS200GFOIH1A is a specialized circuit board used in General Electric’s Mark VI series Turbine Control Systems and related drive applications.
While you’ve referred to it as a “Power Supply Card,” its functional acronym, GFOI, generally stands for Ground Fiber Optic Interface board, indicating its primary role is high-speed, isolated communication.
💡 Core Function: Ground Fiber Optic Interface
The IS200GFOIH1A’s main purpose is to manage data transmission and system integration within industrial control environments, particularly in systems where high voltage and electromagnetic interference (EMI) are concerns.
- Fiber Optic Conversion: It converts electrical signals from the control processor into light pulses for transmission over fiber optic cables, and converts the incoming light signals back into electrical data.
- Electrical Isolation: Fiber optics provide complete electrical isolation, which is essential in turbine and drive systems where large voltage differences and electrical noise could corrupt data or damage sensitive electronics. This ensures the integrity and reliability of control signals.
- High-Speed Communication: It facilitates the high-performance, high-speed data transmission required for real-time control, diagnostics, and protective functions in the turbine control system.
🛠️ System Context
- System Series: It is a key component of the GE Mark VI Series for turbine control.
- Application: The board is crucial for systems that require robust, high-integrity communication, often linking the main turbine controller to various I/O packs, protection systems, and high-voltage power sections (like the EX2100 Excitation System or associated drives).
While it receives power to operate its own circuits, its classification as an interface board is more accurate to its primary function than classifying it as a generic power supply. Its role is about control data integrity, not bulk power distribution.



+86 15340683922
+86 15340683922