Stand-alone Ethernet hub system is part of the X20 slice I/O series. The modular design of the active hub allows it to be used as a 4x or 6x hub. The smallest version is a solution as a 2x hub for extending Ethernet sections up to 200 m. Besides standard Ethernet, the modular hub system can be expanded with an X20 bus controller module with an integrated 2x hub for Ethernet Powerlink.