Ethernet train backbone

An Ethernet train backbone (ETB) is a train communication network based on Ethernet technology standardised with IEC-61375-2-5.{{cite web |url=http://webstore.ansi.org/RecordDetail.aspx?sku=DIN+EN+61375-2-5%3A2012 |title=DIN EN 61375-2-5:2012 Electronic railway equipment – Train backbone – Part 2-5: Ethernet Train Backbone |publisher=ANSI |accessdate=July 15, 2013}} {{subscription required}} This is a train-wide communication backbone such as Wire Train Bus (WTB).