The LAN/USB Cable Tester is designed to easily read the correct cable pin out configuration.
  The cables include of the USB (A/A), USB 9A/B), 10Base-TX, 1000Base-TX,
Token Roken Ring, AT&T258A, Coxial, EIA/TIA568B and RJ11/RJ/12 modular cables.
If you want to test cable installed far away either on patch panel or wall plate which
can use the Remote terminator.