Interface: 4 10/100/1000Base-TX CAT5 ports and 1 10/100/1000Base-X LC uplink port. 1310nm operating wavelength,single mode,dual fiber, up to 20km transmission distance. Industry Standards: EMI: FCC Part 15 Subpart B Class AEN 55022 Class A EMSEN 61000-4-2 (ESD) Level 3EN 61000-4-3 (RS) Level 3, EN 61000-4-4 (EFT) Level 3EN 61000-4-5 (Surge) Level 3, EN 61000-4-6 (CS) Level 3EN 61000-4-8 Traffic ControlNEMA-TS2 VibrationIEC 60068-2-6 FreefallIEC 60068-2-32 ShockIEC 60068-2-27 Rail TrafficEN 50121-4 Wide Temperature & Tough Environment: Working temperature-40° 85°C (-40° 185°F),Storage temperature:-40° 85°C (-40° 185°F).Working humidity:10%90%,non-condensing; Storage humidity: 10%95%,non-condensing Safety, Installation& PowerSupply: Meet IP40 protection degree and EMC industrial grade requirements, DIN rail installation, pass through dangerous environmental certification and comply with FCC and CE standards. Commercial CE/LVD EN60950. Redundant dual DC input powe