CAN to Fiber Optic Router Made by BE Plays a Role in Substation Automation System in Europe. The product made by BE(Bueno Electric) works mainly as the router in this SAS system, the router has 6500 frames/second buffer/second and the buffer can be removed automatically in the nominated time to avoid the data jam. The router supports multi ways of communication such as star,tree,multi-drop bus and so on.