The ARGUS Copper Box is intec’s expansion for the ARGUS 15x & 16x xDSL combi testers. With this USB Box it is possible to, on the one hand, detect dangerous voltages and currents before they can cause harm and, on the other hand, safely determine the physical characteristics of the line. This latter feature is of particular advantage when it is not possible to synchronize a DSL line or when the data rate achieved on a line is so low that there is reason to suspect that asymmetry (an unbalance), interference or mechanical issues are causing problems on it.