MODEL7211 Converter Provides Easy Conversion from ITU-T G.703 E1 Channel To Ethernet Interface. Can Use Widely In Connecting Between WAN And LAN, Monitoring, Etc. The Ethernet Interface Is 10/100Mbps Auto Negotiation and Can Be Full/Half Duplex. The E1 Is Transparent And In Full Rate, Which Can Support The E1 Unframed Mode, Including Fractional E1 Per Request.