ACM-24AT

Display: 24 warning lights (red/green/yellow) + 24 trouble lights (yellow)
Control: 24 push buttons (momentary touch-pad switches)
Main status lights: System Trouble LED, On-Line/Power LED
Audio: Local Piezo Sounder (with Silence/Acknowledge button)
Expandability: Up to 3 AEM-24AT expansion boards can be added (total of 96 points)
Connectivity: Serial connection to FACP cabinet
Dimensions: 8.375 inches (21.27 cm) H x 4.375 inches (11.11 cm) W
Operating Mode: Supports speaker control mode for NFS2-3030, NFS2-640, NFS-320 cabinets
1 year warranty