... is a handheld ADSL/ADSL2/ADSL2+ line test and analysis instrument, whichcan test physical layer, network layer and application ... testingCable testing- Digital Multi Meter, DMM is used to test loop resistance, insulation resistance, capacitance, AC/DC voltage and ... graphical interface, easy to operate.-Line qualified/unqualified indication function: users can set the value of parameter thresholdof key ...