Westermo Viper 408 - Manual (Page 8)

8 6641-2201
Description
Functional description
Viper is a range of switches consisting of two different function levels developed for
rail and industrial applications. To meet the environmental requirements from rail and
harsh industrial applications the switch has rugged M12 Ethernet connectors and full
metal housing. The switch fullfill IP 65 degree of protection when all ports are protected/
connected else IP 40. Our unique FRNT (Fast Recovery of Network Topology) technol-
ogy is the fastest protocol on the market to re-configure a network in the event of any
failure of a link or hardware. Real-time properties are implemented in the Viper108 and
408 in order to achieve determinism for real time critical applications. The Viper-switches
supports QoS (Quality of Service) with four priority queues and strict priority scheduling
as well as HoL (Head of Line Blocking Prevention). All to assure that the data network is
deterministic.