Westermo RFR-212-FB - Manual (Page 7)

7 6641-2223
Description
Functional description
RFR-212-FB is a switch developed for rail on board and industrial applications, approved
according to EN 50155. To meet the environmental requirements from rail and harsh
industrial applications the switch is equipped with rugged M12 Ethernet connectors and
full metal housing and it fulfills IP 65 ingress protection. The unique FRNT (Fast Recovery
of Network Topology) technology is the fastest protocol on the market to re-configure
a network in the event of any failure of a link or hardware. RFR-212-FB supports QoS
(Quality of Service) with four priority queues and strict priority scheduling as well as
HoL (Head of Line Blocking Prevention), in order to assure a deterministic behaviour
of the network. In the event of power loss or other switch failure, the RFR-212-FB is
equipped with dual by-pass relays which can maintain communication through the switch
of dual backbone links.