Supporting 12–48 Vdc input, IP30-rated and DIN-Rail mountable LMX-0501G-SFP series is pre-loaded with Layer 2 network management software, offers redundant ring network function with RSTP, and features four 10/100/1000Tx Fast Ethernet ports and one dual rate 100/1000T SFP slot for fiber. Dual power input and protection against reverse polarity, EFT, surge (2,000 Vdc), and ESD (6,000 Vdc) are standard, and built-in relay warning function alerts maintainers upon power failures occur.