The KBC ESUL4-FL1 Ethernet series is an unmanaged industrial switch designed for use in a wide range of operating temperatures in non-environmentally conditioned, industrial applications. The switch provides connectivity for up to four 10/100 Mbps twisted pair copper ports and one multimode or singlemode 100 Mbps fiber port. All ports are automatically configured and the plug-and-play design provides ease and speed of installation. The series is available in either DIN rail or wall-mount configurations.