LANtest is the simplest wire-mapping device for networking cables available on the market.
It’s a very practical tester that can easily read the correct and actual wiring configuration for Cat5; coaxial and modular telephone cables by comparing one transmitting end to another receiving end.
Cabling faults such as open wires, shorts, mis-wiring and crossed pairs. Perform all the above tests on installed cables with the included remote terminator. Originally for small businesses.