From concept to demonstration, this video highlights the evolution and practical outcomes of the OTIS AEG02C293AB elevator car board. Watch as we walk through its role as the main control unit in LG/SIGMA series elevators, showing how it manages call commands, display signals, and door communication using a DC24V power supply. You'll see a clear explanation of its direct replacement compatibility with AEG02C293AA and AEG02C293AC models, providing real insights for maintenance and upgrades.