Supply of E1 To Ethernet Converter, One E1 Interface & Four Ethernet Interface. Ac And Dc Ordering Options. Make Tech Route Td-Cnv-E1-4Eth Or Similar Model Of Tech Route, Mrotek Model No-Pine Iei/4Fe/Ac/Dc Or Similar Model Of Mrotek, Teamlink 3101Ee Or Similar Model Of Teamlink..