The family of the factory line switches with standard functions fl switch sfn makes possible a fast and economical extension of ethernet with the numerous variants the switches have five or eight ports from which two can be implemented as multi modesingle mode glass fibre ports in the sc or in the st format the switches supports the data transmission rates 10 and 100 mbits at the twisted pair ports glass fibre ports support excluding 100 mbits the switches regenerate the received data t