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• 4 Gbps ports
• Dual bypass relay to mitigate dark car scenario
• Single model 24-110 VDC (+-30%) power range
• Robustness-enhancing design features
• Extensive range of approvals, by IEC/ISO 17025 certified
• Quality-focused engineering and production located in Sweden
• Strong set of protocols and functions, including full support
for IEC 61375
• High level cyber security
• Easy to use
The Viper-208-T4G-TBN is a managed 4-port backbone routing switch optimised for the needs of the railway rolling stock market. The dual bypass relay ensures that aggregated links between cars are maintained, even if there is a power failure in one car. Gbps ports cope with high bandwidth backbone, consist ring and end devices.
The Viper is designed to withstand the tough environment on-board trains, exposing the switch to constant vibration, extreme temperatures, humidity and a demanding electrical environment.
A GORE-TEX® membrane prevents internal condensation. Threading integrated in chassis provides for additional vibration resistance. High-level isolation between all interfaces enables direct connectivity to vehicle auxiliary power and protects against overvoltage and flashover. IP67 protection prevents ingress of water and dust. An overall optimised design results in an extremely compact package in combination with very high MTBF for easy integration and low lifecycle cost.
Thorough type testing at independent labs certify the compliance to a wide range of standards, not least EN 50155, where the highest class is achieved in all aspects. The state-of-the-art Westermo production facility ensures the quality of each individual unit, e.g. through temperature cycling burn-in testing.
The WeOS operating system offers an extensive suite of IP networking features for resilient and flexible networks, e.g. the FRNT ring protocol with very fast failover. The powerful layer 3 routing capability ensures communication between the backbone and consist networks and offers full support for IEC 61375, including TTDP network inauguration and TRDP realtime data protocol. The backup device accessory matches the Viper in robustness and offers easy configuration update and backup.
Customer service, Westermo North America