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Westermo Viper-112A-T3G-P8-HV Managed Ethernet Switch

Westermo Viper-112A-T3G-P8-HV Managed Ethernet Switch
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Westermo Viper-112A-T3G-P8-HV Managed Ethernet Switch

The Viper-112A-T3G-P8-HV is a managed 12-port switch optimized for the needs of the railway rolling stock market. PoE ports offer effective powering of 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 into 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 the ingress of water and dust. An overall optimized 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 certifies 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 on 100 Mbps as well as Gbps ports. The backup device accessory matches the Viper in robustness and offers easy configuration update and backup.

Meeting the requirements of the railcar market, the Viper is very well suited for deployment in any other application with severe operating conditions and tough environments, for instance in the mining industry.


  • EN 50155 Managed Gbps PoE Switch
  • 3 x Gbps ports
  • 9 x 100 Mbps ports, whereof 8 PoE
  • 1 x USB
  • 1 x RS-232 console port
  • Model: Viper-112A-T3G-P8-HV
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