Train orientation, ETCS

If there is an active cab, this one defines the orientation of the train, i.e. the side of the active cab is considered as determining the front of the train. If no cab is active, the train orientation is defined by the last active cab. Exception: from the time the first Supervised Manoeuvre authorisation is received to the time the mission is either ended or continued in Non Leading mode, the train orientation is determined by the direction of the Movement Authority in the last received Supervised Manoeuvre authorisation, regardless of the position of the engine in the shunting consist and of which of its cab(s) is active.