Dec 12, 2001 · 4-port 10/100Base-T(X) Fast Ethernet,2-port 100Fx - SC/ST connector (Multi/Single Mode),Redundant Power Input Design, 12-48VDC,Built-in Relay Output Warning for Power Failure,IP30 Rugged Metal Case Design,DIN-Rail Mounting, Wall Mounting,Operating Temperature Range - STD: -10°C ~ 65°C, EOT: -40°C ~ 75°C