Functional model for the remote control of traction units

Summary

The purpose of this document is to produce a general model that describes in a functional manner the remote control of traction units.

The document makes direct reference to UIC Leaflet 556 which deals with data transmission on the train bus and specifies the functions that take place between the vehicles concerned (locomotives, multiple units, railcars, trainsets and driving trailers) including the rules under which the necessary telegrams are formed, transmitted and processed.

Four different control types are defined covering the basic functions that are always to be guaranteed for remote control and the more complex ones that allow more flexibility in the remote control of the traction units but may not be always available on existing rolling stock.