Grinnell 505SDA 976377 Notification Appliance Module is a circuit board/card that serves as the notification appliance module in Grinnell fire alarm systems. Identified by model 505SDA and part number 976377, this module interfaces with the fire alarm control panel to manage the system’s notification devices. Designed for use in building fire alarm environments, it provides the essential interface between the control panel and connected notification appliances.
