The BAS (Broadband Access Switch) is an basic platform of Broadband IP Switch that provides 2 high capacity Gigabit Ethernet uplinks and aggregates/manages 24 ADSL/ADSL2+ interfaces on user side in a single rack unit package . The ADSL interface complies with ITU G.992.1 (G.dmt), G.992.2(G.lite), G.992.3(ADSL2) and G.992.5(ADSL2+) standards and connects up to 24" ADSL2/2+ modems (ATU-R).