Adtran T3SU 300 (2nd Gen). Storage temperature range (T-T): -20 - 70 °C, Operating temperature range (T-T): 0 - 50 °C. Dimensions (WxDxH): 431.8 x 295.27 x 43.18 mm, Weight: 3.17515 kg. Networking features: 10BaseT. Minimum system requirements: 120V & 9W (AC) / 24 - 48V & 8W (DC) 19" 1U RJ45 DS3 Aux DTE. Cabling technology: 8-pin_modular/4-pin_modular / 2 x BNC-to-BNC Coaxical