The AMB-8 Annunciator Monitor Board allows for the manual control and override of eight fan, damper or smoke control zones. Each zone has outputs for four LEDs (On/Open, Auto/Normal, Off/Closed & Trouble) and two inputs (On/Open & Off/Closed) for the positive status of the displayed device. The AMB-8 is UL Listed for controlling fans, dampers or smoke control zones. Other devices can also be controlled by the AMB-8 such as doors requiring manual override capability.