By comparing one transmitting end to the corresponding receiving end, T68 tester can read the correct pin configuration of 10/100 base-T cable, 10 base-2 cable, RJ45/RJ11 modular cables, AT&T 258A cable, EIA/TIA 568A/B cable token ring cable. It can test also installed cable far away either on the wall plate or the patch panels by using the remote kit.