Notifier CPU-2020, Central Processing UnitCondition:* New Surplus Stock, No OEM Packaging. As Pictured.Additional Notes:* The Central Processing Unit (CPU-2020) is the director of all system communications and operations for the Notifier AM-2020 Fire Alarm Control Panel. * The CPU-2020 also provides a Form-C auxiliary alarm operated contact and a Form-C auxiliary trouble operated contact. * Communications with system modules are over a high-speed serial interface.* Completely field-programmable and configurable from the front panel keypad.* Capacity for up to 1,980 individually identifiable and controllable detection/control points.Notifier CPU-2020