... Ring,Design for industrial Level 4 standard. 3ONEDATA 8-port Web Managed Optical Industrial Ethernet Switch Introduction: IES608-4F is a type of WEB ... managed redundant Industrial Ethernet Switch, which support4 10/100M Ethernet ports(RJ45), 4 100M ... 32Vibration:IEC60068-2-6Warranty: 5yearsCE,FCC,RoHS,PAL,UL508 3ONEDATA 8-port Web Managed Optical Industrial Ethernet Switch