S-280ADSL2 + Tester can not only test the ADSL2 + / ADSL link management layer parameters, and alarm parameters can be achieved on analysis. Flexible keyboard input, testing personnel to facilitate the user name, password, VPI / VCI, alert thresholds and other parameters changes. Built-7 group of VPI / VCI parameters, 7 groups of PPP dial-up link, which can meet the needs of different users, without frequent setting. DMM test not only to test the line voltage, loop resistance, capacitance and insulation parameters, but also can estimate the line length. Modem with a simulation function, can also be automatically set automatic shutdown time, meet all kinds of first-line installation and maintenance personnel to use!