3M Dynatel Triple Play Customer Service Test Set INS970 Advanced Diagnostics Software Options DELT, SELT and Spectral Analysis The INS970 Test Set has the ability to run advanced diagnostics in different scenarios to help the technician troubleshoot problems with both active and inactive pairs. The DELT (Dual Ended Line Tests) functionality leverages the power of the DSLAM to conduct a two-ended analysis of the line. This is extremely useful for several reasons: It saves valuable time, as it doesnt require the DSLAM to be disconnected in order to test the line, saving an extra truck roll. It analyzes the line through measurement, which is both more accurate and more realistic, as it tests the line in its nfi al congfi uration. It effectively analyzes the line from both ends in one test, increasing the identicfi ation resolution. When a DSLAM is not available on the pair to be tested, the SELT (Single Ended Line Test) feature set is used. This enables the INS970 test set to test a vacant pair to 3M Dynatel Triple Play Customer Service Test Set INS970 ensure it is capable of delivering the required service. One of the key features is the data rate estimation (and the associated impairment rate reduction quanticfi ation). This is important because the presence of impairment does not necessarily mean the pair is not capable of carrying a particular service. This, in turn, allows the technician to reduce the false rejection rate and helps reduce the workload on the cable repair crew. Dual Ended Line Tests The DELT tests are designed to help the technician characterize line quality impairments on pairs that are currently in service but that do not meet the service standards required. For these tests, a DSLAM is required on the other end of the pair as a link partner.Bridged taps Bridged taps can be serious concerns for high speed data delivery, as they rob the line of precious bandwidth. The 3M Dynatel Triple Play Customer Service Test Set INS970 can detect the presence of a bridged tap and quantify its impact in data rate loss: This is important, as it helps identify which pair troubles are worth xfi ing, and which ones are not. Noise Just like bridged taps, noise can really impair the ability of an otherwise good pair to deliver data at its best. The INS970 test set detects noise by scanning the entire active DSL spectrum (the spectrum used by the current connection) and then plotting it in a frequency based domain (Spectrum Analyzer). This is then automatically interpreted by the unit, to provide the technician with the most useful information: What are the predominant disturbers What effect do they cause on the data rate This interpretation is very useful, as it enables almost any technician (experienced and less experienced) to quickly understand where the noise is coming from and how bad the situation is: