Device Type Gateway Enclosure Type Rack-mountable Installed Modules Qty (Max) 2 ( 3 ) Width 44.5 cm Depth 52 cm Height 4.5 cm Weight 10 kg Enclosure Colour Black Processor / Memory / Storage Processors Installed 250 MHz RISC RAM Installed ( Max ) 128 MB ( 512 MB ) Flash Memory Installed (Max) 32 MB ( 64 MB ) - Flash Networking Form Factor Rack-mountable Connectivity Technology Wired Line Rate E-1 Data Transfer Rate 100 Mbps Data Link Protocol Ethernet, Fast Ethernet, HDLC, Frame Relay Switching Protocol PPP, X.25, Frame Relay, Ethernet Network / Transport Protocol ***/IP, IPX/SPX, AppleTalk, DECnet, UDP/IP, NetBEUI/NetBIOS Remote Management Protocol SNMP Features Modular design Compliant Standards IEEE 802.3, IEEE 802.3u IP Telephony VoIP Protocols MGCP, SIP, H.323 v3, H.323 v4, H.323 v2 Voice Codecs G.711, G.723.1, G.729ab, G.726, T.38 Expansion / Connectivity Expansion Slots Total (Free) 3 ( 1 ) x Expansion Slot Interfaces 1 x management - console - RJ-45 - 1 | 4 x network - ISDN PRI E1 - RJ-45 - 4 | 2 x network - Ethernet 10Base-T/100Base-TX - RJ-45 - 2 | 2 x serial - 2 Miscellaneous Rack Mounting Kit Included Power Power Device Power supply - internal Voltage Required AC 110/220 V ¡À 10% ( 50/60 Hz ) Software / System Requirements Software Included Drivers & Utilities OS Required Cisco IOS Manufacturer Warranty Service & Support 1 year warranty Service & Support ***ails Limited warranty - parts and labour - 1 year - carry-in Environmental Parameters Min Operating Temperature 20 ℃ Max Operating Temperature 50 ℃ Humidity Range Operating 5 - 95% Sound Emission 60 dBA |