GE Mark V IS220PAICH1B Analog Input/Output ModuleDescription The IS220PAICH1B is a device originally designed and produced by General Electric (GE) for use in the Mark VI Turbine Control System Series. Although the Mark VI Series has become obsolete due to functional obsolescence, it remains significant for its specific applications in managing and controlling GE compatible gas, steam, and even newly developed wind turbine automated drive assemblies. Technical Specifications Ambient Temperature