In some areas far away from the base station or blind areas due to obstacles and surroundings, building addition base stations to provide signal coverage is not the most ideal method cost-wise. But the MDAS are quite suitable for blind areas coverage situation. The installation requirements of the MDAS are relatively low, and the installation period is much shorter compared to a base station. Action MDAS solutions cover 2G, 3G, 4G and 5G applications ranging, and it supports multiple operators. They comprise of master unit and remote unit, point-of-interface (POI), antennas, passive components, fiber optic cable assemblies, and RF coaxial cables and jumpers. The master unit captures the base stations signal via direct coupler close to base stations, then converts it into optic signal and transmits the amplified signal to the RU via fiber optic cable. The remote unit will reconvert the optic signal into RF signal and provide the signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the base stations via the opposite direction.