Brainboxes sw series industrial ethernet switches brainboxes sw 504 industrial ethernet 4 port unmanaged switch galvanically isolated ethernet ports capable of 10100 mbps 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