Interface: 2×10/100/1000Base-X SFP uplink port and 4×10/100/1000Base-TX UTP ports. Up to 120km transmission distance via 1550nm wavelength,single-mode, and dual fiber cable( NOT include SFP transceiver and power adapter). Safety, Environment & Installation: Safety: Meet IP40 protection degree and EMC industrial grade requirements. Pass through dangerous environmental certification and comply with FCC and CE standards. Commercial CE/LVD EN60950.Environment: The hardened IP40-rated gigabit switch is rated for the extreme environment with an operating and storage temperature range of -40° 75°C (-40° 176°F). Installation: DIN-rail Mounting. 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 Qu