NF-8601s, upgrated based on NF-8601, provides full cable testing ondifferent category network,coax, or telephone cable.The intelligentwiremap' feature tests for length, shorts, split pairs, or opens anddisplays with an intuitive graphical interface where a fault is located.(usingTDR techonology:Time Domain Reflectometry).Besides, findingcables easier and tracing with AC fliter, or locating network port usinghub blink feature. It can also test the presence of PoE and PING functions.all these make it a must tool for each network technician.