TR Corporation offers Fluke 990DSL CopperPro series II test set (25/06/2008)... set, available from TR Corporation, is the ideal tool to qualify, trouble shoot and determine the fault location of POTS, ADSL1/2/2+, VDSL, HDSL, HDSL2 & 4, ISDN, E1 and DDS communications services.Ordinarily challenging and time ...