Brainboxes sw series industrial ethernet switches brainboxes sw 508 industrial ethernet 8 port unmanaged switch galvanically isolated ports industrial temperature range of 40degc to 80degc 40degf to 176degf and dual input redundant power supply with wide voltage range means it can be powered from usb or on the 24v dc factory floorpower terminal is removable with numbered pins for easy wiring power consumption is optimised based on the status of the link device no software re