Product Overview

The General Electric IS200PDIOH1A is a discrete simplex card used in Speedtronic Mark VI/Mark VIe turbine and excitation control cabinets. It provides discrete-level interfacing for control logic that requires relay-based switching and field termination support. In a simplex architecture, the board is applied in systems where redundancy is not required, while still maintaining industrial-grade protection against electrical transients and cabinet noise sources.

This card is commonly selected to match an existing Mark VIe cabinet build where the discrete interface layout, terminal count, and connector style must remain consistent for wiring continuity and fast replacement.

Electrical and Hardware Characteristics

• Board functions (application dependent)

• Discrete command routing for turbine/excitation auxiliary functions

• Relay switching interface for control outputs and interlocks

• Transient suppression and basic filtering for field-connected circuits

• Service notes

• Confirm terminal numbering and connector mating before transferring field wiring

• Perform continuity and functional checks after installation, especially for relay-driven interlocks

• Use ESD precautions and follow plant lockout/tagout procedures during replacement

Industrial Applications

• Discrete control and relay interfacing in Mark VIe turbine auxiliary systems

• Excitation control cabinets requiring discrete switching and surge-protected terminations

• Replacement spare for simplex Mark VI/Mark VIe installations with fixed wiring layouts

• Control panel retrofits where legacy discrete cards must be kept consistent for commissioning simplicity