The Altronix AL400ULADA Fire Alarm Indicating Circuit Power Supply/Charger is specifically designed to interface between the FACP and indicating devices to supply the additional power needed for a Fire Alarm System to conform to ADA regulations. For both retrofit and new installations, the model AL400ULADA Fire Alarm Indicating Circuit Power Supply will save time and expense, while efficiently providing the power needed to drive additional horns, strobes and bells required under the ADA. This unit allows compatibility between 12VDC fire alarm control panels and 24VDC ADA strobes and other signaling devices. The AL400ULADA comes complete with enclosure, transformer and ample room for standby batteries. Onboard supervisory relays are incorporated for remote status reporting and trouble indications at the fire panel.