ADB Safegate's RELIANCE Power ACE3 distributed control and monitoring unit (DCMU) provides full L-827/L-829 monitoring in conjunction with an Airport Lighting Control and Monitoring System (ALCMS), or it can be used as a stand-alone unit for local monitoring. The RELIANCE Power ACE3 is a universal device that can be used to control any type of constant current regulator (CCR) and/or controlled element regardless of the manufacturer. Each ACE enclosure is installed locally at each device that requires control and/or monitoring in the airfield lighting electrical vault.