Network up to 5 Ethernet devices through a rugged, industrial Gigabit Ethernet switch - 5x 10/100/1000 Mbps unmanaged RJ45 Ethernet port - IP30-rated DIN rail and wall-mountable metal enclosure - Wide-range redundant power via two 12-58 V DC terminal block inputs, with alarm relay - Overcurrent and reverse polarity protection - Extended operating temperature range (-40°C to 75°C) - Speed / duplex auto-negotiation and auto-MDIX detection on each port - Up to 9K jumbo frame support - IEEE 802.3az Energy-Efficient Ethernet - Supports IEEE 802.3x flow control and back-pressure