Fluidmesh Intra-train Wireless Bridging Solutions for Heavy Commercial Rail and Passenger Rail. End-to-end broadband connectivity is an increasingly common requirement in both heavy commercial rail and passenger rail. As a leader in wireless rail communication systems, Fluidmesh has developed a wireless Intra-train solution that supports up to 500 Mbps of available throughput and aims to solve many of the intra-train connectivity problems faced by today’s rail operators.