RAILWAY-TRAIN COMMUNICATION APPARATUS

摘要

A railway-train communication apparatus (20) performs transmission processes of transmitting a first transmission signal flowing through an inter-car network (TN1, TN2) constructed between cars of a railway train and a second transmission signal flowing through an in-car network (CN) constructed in each of the cars. The railway-train communication apparatus (20) includes a node device (21-1, 21-2) including a first signal converter (31-1) and a second signal converter (31-2) that perform a signal conversion between the first transmission signal and the second transmission signal and a layer 2 switch (32) arranged between the first signal converter (31-1) and the second signal converter (31-2) for connecting the first signal converter (31-1) and the second signal converter (31-2); and a first controller (22-1, 22-2) that is connected to the layer 2 switch (32).