Of six 10/100Tx Fast Ethernet ports offered by LMP-0600-24 series, 4 are IEEE 802.3at/af compliant (PoE+/PoE) with PoE power output up to 30 W per port. These fanless, 46 x 99 x 142 mm, IP30-rated devices also feature ring network redundancy function, external USB2.0 port, and 12–36 Vdc low voltage power input support with built-in voltage booster to support full 48 Vdc PoE power output for each PoE port. Dual power input design offers reverse polarity protection and relay warning function.