The hub makes possible a fast & economical extension of Ethernet Network It has eight or sixteen Twisted Pair ports, which can be used for the connection of further main segments or terminals. Particularly suitable for special automatic protocols like e.g. the FL Net. The FL HUB 8/16 TX-ZF supports both Ethernet with 10 MBit/s & also with 100 MBit/s. The hub regenerates the received data telegrams & sends it to remaining ports A port allocation switch is found for the port 5 on the hub The transmission & reception lines are exchanged by switching the switch while maintaining the polarity at port 5 Thus can be passed without Crossover cables for the connection of main accounts