The VDV II Tester Basic from Ideal is easy to use. It checks the integrity of copper cables commonly found in domestic, commercial or industrial voice, data or video installations, including telephone wiring, data network and video security cabling. Advanced TDR Time Domain Reflectometry measures cable length and provides distance to fault information. The R158000 identifies wiring errors instantly and displays the results all on one screen and quickly determines which media service is running over cables, such as ISDN, PBX and PoE.