G1200S is a broadband interface converter device which converts electrical and protocol conversion between data from Fractional E1/T1 to Ethernet 10/100BaseT interface with different E1/T1 configurations. G1200S supports Fractional E1/T1 transparent and framed modes with different line codes plus line build-out (LBO) capability. This provides for the user with various Ethernet LAN services (Video Conferencing,Routing,etc) through a single E1/T1 connection.