VDV Commander Test Kit Features: Locate, test and measure coaxial, data (RJ45) and telephone (RJ11) cables. Identify wiring faults including miswire, open, short, split-pair, reverse-pair and verify shielding. Detect, identify and test Power over Ethernet (PoE). Measure cable length and distance to a fault with Time Domain Reflectometry (TDR) technology ...