3. Product Description
3.1. Product Description
The Viper-20A series consists of of managed 20 port routing switches optimised for the
needs of the railway rolling stock market. Gbps ports cope with high bandwidth devices
such as access points and NVRs (Network Video Recorders).
The Viper-20A series 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 ISO/IEC 17025 and ILAC MRA certified labs,
accredited to a wide range of standards, show that the Viper series fulfills EN 50155 and
other requirements. 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 is very useful for separating networks in complex
applications. 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-20A series is very well suited for
deployment in any other application with severe operating conditions and tough
environments, for instance in the mining industry.
3.2. Available Models
All switches are managed. Viper x20A is used when referring to both models 120A and
220A.
Art. no.
Model
Software
Gbps ports
3635-0910
Viper-120A
L2
-
3635-1210
Viper-120A-T4G
L2
4
3635-0920
Viper-220A
L3
-
3635-1220
Viper-220A-T4G
L3
4
Table 3. Available Viper-x20A models
Viper 20A Series
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