NST

 CMTD(RTD) is a train integrated information transmission device that satisfies the EN50155 standard.

The train integrated information transmission device is installed in a TC vehicle and provides the function of transmitting TCMS data of the train integrated control device, CMD/CPM data received from the air compressor/bogie sensor, and image data transmitted by the broadcast/indicator/CCTV control device to the ground server via LTE-R or Wi-Fi communication, and serves as a gateway for transmitting software update information from the ground server to the onboard sub-device.