The BB FOCUS uses packetized multiplexing technology running at gigabit Ethernet speeds over dedicated fiber optic networks. New switching technology negates the historical pitfalls of using Ethernet in critical communication applications. The system offers sub-50ms redundant-loop switching and truly predictable end-to-end delay. Latency in a given channel is nearly independent of the number of nodes between end terminals, with passthrough delays of only a few microseconds, compared to the 125-plus microseconds required in T1, E1, SONET or SDH systems. Shorter delays lead directly to better performing, more reliable networks.