In another post, an interview with Ross Rowland (http://cs.trains.com/trn/b/staff/archiv%20...%20loves.aspx) is shared, and the following quote is in the interview:



This is of extreme interest to us and I encourage involved persons to contact me. We would be interested in learning about and documenting the challenges and safety certification of portable or interchangeable signal computers and components. Such documentation would support regulatory approval in Denmark.