GE IS420UCSBH3A UCSB Controller ModuleDescription: The IS420UCSBH3A is a UCSB Controller Module developed by GE as part of the Mark VIe series. It is a stand alone computer designed to run application specific control system logic. Unlike traditional controllers, the UCSB does not host application I O on a backplane but is connected to all I O networks, providing access to all input data. This architecture ensures no single point of application input is lost, even during maintenance or