The LANtest is the simplest and most affordable wire-mapping device for networking cables available on the market. Use it to read the actual wiring configuration for Cat5, coaxial and modular telephone cables by comparing one transmitting end to another receiving end. Cabling faults such as discontinuity, open wires, shorts, miswiring and crossed pairs are crystal clear with the LANtest's unique LED display. Perform all the above tests on installed cables with the included remote terminator.