Cisco VG248 Analog Phone Gateway. Management protocols: SNMP, Telnet. Dimensions (WxDxH): 431.25 x 418.75 x 43.75 mm, Weight: 6.6 kg. Power requirements: 100-240 VAC, 50/60 Hz. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -10 - 60 °C, Operating relative humidity range: 10 - 95 %. Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950, AS/NZS 3260, TS 001