Digital map data transmission method

A distributed antenna system according to an embodiment according to the technical features of the present invention, receives a digital interface gyugyeok data transmitted according to a digital interface gyugyeok from the base station, and the received digital interface gyugyeok data distributed antenna system (DAS: Distributed Antenna System) conversion in a DAS digital data having a frame rate that is used for digital signal transmission, and receiving a DAS digital data from the head end unit, and a head end unit for transferring the converted DAS digital data, the received DAS digital data to the digital interface gyugyeok lower restoring a digital interface standard data having a frame rate according to the stage comprises a node unit.