One 10/100 RJ45 port supporting a maximum distance of 100 m (300 ft.) One 100Base-FX fiber SC multi-mode port supporting a maximum distance of 2 km (1.24 mi.) IP40 slim-type metal housing to withstand harsh industrial conditions Option for DIN-rail installation Two redundant DC inputs (12 - 56 V) with I/O terminal block Requires industrial power supply (not included) Port surge protection up to 6 kV ESD protection up to 8 kV (air) and 6 kV (contact) Rated for shock (IEC 60068-2-27), freefall (IEC 60068-2-32) and vibration (IEC 60068-2-6)