The scope of this Technical Report is to define the ERTMS DMI in STM mode for each system include in Annex B of STI CC. This Technical Report defines the ergonomics for the Specific Transmission Module integrated in the Driver-Machine Interface (DMI) for the ERTMS/ETCS Train Control System, and for the integrated ERTMS/GSM-R Train Control and Train Radio Systems. The ergonomics covers the –general arrangements (dialogue structure, sequences, layout philosophy, colour philosophy), –symbols, –audible information, and –data entry arrangements. The reasons for defining the ergonomics of the DMI are as follows: 1.Achieving harmonised and coherent presentation for ERTMS/ETCS and STM information. Given the large number of STM’s requiring the use the ERTMS/ETCS DMI, only a harmonised approach is feasible. 2.Defining Driver-Machine Interface ergonomics that is compatible with agreed interoperable ERTMS specifications. 3.To reduce the risk of incorrect operation by a driver working with different trains fitted with ERTMS/ETCS. 4.Facilitating train operation with a unified ergonomics, hence reducing the cost of driver training. This Technical Report is applicable on all trains fitted with the ERTMS/ETCS.