eke-electronics.com. Discover in 4 minutes how EKE Trainnet® can help you build and operate your train in a smarter way. Trainnet® is a versatile platform enabling you to ease system integration and automate your train. Trainnet® can act as a Train Control and Management System (TCMS), Train Communication Network (TCN), Passenger Information System (PIS) and even Event Recorder (e.g. JRU).