The NT series is a range of compact IEEE 802.3 layer two network switches with automatic speed, duplex and cable sensing. The series features ultra-robust construction, capable of withstanding environmental extremes for use in mission critical applications. These affordable, Class I, Division 2 switches feature redundant power inputs, hardened metal enclosures, and 16 kV port protection. Each switch is capable of auto negotiating 10/100 Mb and half/full duplex communications. ESD Protection Diodes on RJ-45 Ports. Surge Protection Diodes on Power Inputs. LED Link/Activity Status Indication. Hardened Metal DIN-Rail Enclosure. Compact, Space Saving Package. Full IEEE 802.3 Compliance. 10-30 VDC input voltage, 215mA at 24V steady input current, 7.8Amp/0.7ms at 24V Inrush. -40 to 70 degree C operating and -40 to 85 degree C storage temperature. 10 to 95 percent (Non Condensing). 0 to 10000 operating altitude.