3. Product Description
3.1. Product Description
The Viper-20A-PoE series is a series of managed 20 port switches optimised for the needs
of the railway rolling stock market. PoE ports offer effective powering of end-devices. Gbps
ports cope with high bandwidth devices such as access points and NVRs (Network Video
Recorders).
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 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.
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.
3.2. Available Models
All switches are managed and have eight PoE ports. Viper x20A-PoE is used when referring
to both models 120A-PoE and 220A-PoE.
Art.no
Model
Layer
Gbps ports
HV
LV
3635-1010
Viper-120A-P8-HV
2
-
48 - 110 V
3635-1020
Viper-220A-P8-HV
3
-
48 - 110 V
3635-1110
Viper-120A-P8-LV
2
-
24 - 38 V
3635-1120
Viper-220A-P8-LV
3
-
24 - 38 V
3635-1310
Viper-120A-T4G-P8-HV
2
4
48 - 110 V
3635-1320
Viper-220A-T4G-P8-HV
3
4
48 - 110 V
3635-1410
Viper-120A-T4G-P8-LV
2
4
24 - 38 V
3635-1420
Viper- 220A-T4G-P8-LV
3
4
24 - 38 V
Table 3. Available Viper x20A-P8 models
10
Viper 20A-PoE Series
