The IS200VCMIH2BEE is a printed circuit board designed by General Electric as part of the GE Mark VI IS200 Speedtronic family. The board is commonly used in industrial gas and steam turbine control systems, especially in processing plants and power generation applications, to control turbine speed during start-up, synchronize generators, provide turbine load control, and prevent load loss and turbine overspeed situations.
As part of the Unit Data Highway (UDH), the IS200VCMIH2BEE acts as the primary communication controller board, reading and transmitting data to other boards via Fiber Optic Ethernet (IONet). The board features a triple modular redundancy (TMR) design with three IONet ports, uses software-implemented fault-tolerant technology (SIFT voting) to broadcast data to all remote racks and extract corresponding packets at VCMI boards in remote locations.
The IS200VCMIH2BEE is a dual panel with resistors and capacitors on the back, and a more complex front that includes connector ports (including two backplanes), inductors/chokes, test points, and integrated circuits. The front panel houses three IONet ports and a public serial port, and also features a reset button, two setting screws, and four sets of LED indicators.
Specifications for the board include part number IS200VCMIH2BEE, manufactured by General Electric, motherboard type 6U High VME board, 0.787 “wide, TMS320C32 processor, operating temperature range -30 to 65°C, for use as a communication board, currently available in stock, It belongs to the Mark VI series.