The routers in the TN Series are designed for rolling stock backbone networks and include high-performance M12 routers with four bypass relay backbone ports. They support NAT and routing functionality to facilitate the deployment of cross-network applications.
The ToughNet TN-4900 Series, designed for rolling stock Ethernet networks, is a set of high-performance M12 routers with 8 Gigabit ports and up to four bypass relay ports.