HEAVY INDUSTRIAL GRADE, UNMANAGED, 10/100 ETHERNET SWITCHES WITH FIBER OPTION B&B Electronics' Heavy Industrial certified unmanaged 4, 5, 6, and 8 port Ethernet fiber switches, the ESW200 series, were designed with harsh environment applications in mind. These switches are industrial hardened for rugged, noisy, dirty, applications such as: wind power, traffic control, water management, industrial automation, SCADA, building control, warehousing and more. Features include shock, vibration tested, broadcast storm protection, dual AC, DC power inputs, and hardened IP30 enclosure with Din-rail or panel mounts.