The 105FX Industrial Network Switch is designed to meet the most demanding industrial communications requirements while providing high throughput and minimum downtime. The 105FX provides four RJ-45 auto sensing 10/100BaseTX ports, plus a fiber based Fast Ethernet uplink port. All TX ports are full/half duplex capable, using "state of the art" Ethernet switching technology. The 105FX auto-negotiates the speed and flow control capabilities of the four TX port connections and configures itself automatically. The 5th port is a 100BaseFXfiber optic uplink utilizing industry standard ST or SC duplex connectors. Since the TX ports of the 105FX are auto sensing, there will be no need to make extensive wiring changes if upgrades are made to the host computers, plant systems or Ethernet I/O modules. The switching fabric simply scales up or down automatically to match specific network environments.