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Graphic Interface Unit
Connecting your Graphic Display Annunciator to other systems usually requires an interface between the output signals of the driving system and the graphic display lamps. CDT developed the Graphic Interface Unit (GIU) to solve interface problems. The GIU is a microcontroller-based interface circuit board. It mounts on the reverse side of the graphic display and handles interface requirements in software. Features of the GIU include:
up to 128 inputs, expandable to 256
optional RS-232 interface
closed contact switching or switching transistor alarm inputs