ADSLUnder the ADSL standards ADSL ports can reach in downstream direction 32 kbit/s to8160 kbit/s data rate and 32 kbit/s to 896 kbit/s data rate in upstream direction. The linerates are set with a 32 kbit/s granularity. The IU_ADSL48 plug-in units support anupstream rate of up to 1024 kbit/s.ADSL2The IU_ADSL48 plug-in units support ADSL2 under ITU-T G.992.3 Annex A. Thisenables ADSL ports to reach in downstream direction 32 kbit/s to 11,000 kbit/s data rateand 32 kbit/s to 1500 kbit/s data rate in upstream direction. The line rates are set with a4 kbit/s granularity.ADSL2+The IU_ADSL48 plug-in units support ADSL2+ under ITU-T G.992.5 Annex A. Thisenables ADSL ports to reach in downstream direction 32 kbit/s to about 25,000 kbit/sdata rate and 32 kbit/s to 1024