Ngwaọrụ na-eji teknụzụ multiplexing reverse direction iji chịkọta ọtụtụ sekit E1 iji bufee data Ethernet nke 4Channel 100BASE-TX.Ọ nwere ike ghọta ntughari n'etiti 1 ~ 8 ọwa E1 na Ethernet ngwa anya interface, ime ka E1 ọwa interconnected na Ethernet ngwa anya interface.