Car data transmission device for optical fibers

摘要

In a car data transmission device installed in cars to transmits data through the cars by means of optical fibers, optical fiber lines for data transmission are provided to be looped in duplex through a row of cars; each of cars is provided with optical fiber cables, each receiving therein the duply looped optical fiber lines as one unit whose data transmitting direction different each other; and jointing optical fiber cables are placed between the adjacent cars to pass the duply looped optical fiber lines as one unit received in the optical fiber cable placed in each of the adjacent cars whereby interruption of the data transmission lines is prevented even though a trouble of transmission such as breaking of one of the jointing optical cables occurs.