The ASMi-54L is a 2/4-wire managed SHDSL.bis modem transporting Ethernet and E1 traffic at high speed over multi-pair copper links. Using EFM bonding, the SHDSL.bis modem provides data access rates of up to 5.7 Mbps over 2 wire and 11.4 Mbps over 4-wire lines. It complements the 22.8 Mbps ASMi-54 8-wire modem, providing a cost-effective solution for SHDSL.bis access at medium rates.