100 Mbit/second Fast Ethernet or 100BASE-T is defined by the IEEE 802.3u specification. It is a common Ethernet standard for carrying data traffic in process automation, control and manufacturing applications. Built for industrial use, our managed, 10/100BASE-TX switches are durable and reliable. With DIN rail or wall mounting, they offer a variety of port densities with choice of copper or fiber optic connections. Power over Ethernet (PoE) ports and extended operating temperature of -40°C to 80°C are optional. Each includes managed Ethernet switch functions like Rapid Spanning Tree, SNMP, VLAN, port mirroring, a console port, quality of service, IP security, IGMP and more.