Wireless signal MDAS solution is call Multi-service digital distribution system access system, it includes Includes the MU (Main Unit), EU (Extended Unit), RU (Remote Unit), it Integrates 2G, 3G and 4G seamless coverage. The MDAS couplered signal from BTS directly, support wide band or band selective, support 2X2 mimo, support local and remote control. The MDAS solution is suitable for those applications such as Airports, Railway stations, Bus stations, Ports,Exhibition centers, Museums theaters, Public libraries..ect.