Patent ID: 7479776

Claim:
In a LAN cabling testing system of the type having a display unit and a remote unit and first and second patch cords, the patch cords each terminating at first and second plugs, and the display and remote units each having a jack for receiving a patch cord plug, a plug and jack when connected comprising a mated connector pair, the display and remote units each having means for sending and receiving a wave form of selected frequency to and from the other unit through said patch cords and a LAN link to be tested, an improved method of testing LAN cabling comprising the steps of: a) calibrating the patch cords and mated connector pairs, calibration including the step of measuring the scattering parameters of the mated connector pairs and the patch cords; b) connecting the first patch cord to the display unit and one end of the link to be tested, and connecting the second patch cord to the remote unit and to the other end of the link to be tested; c) measuring the total link; d) using the scattering parameters of the mated connector pairs to move the reference planes at the display unit and remote unit to the necessary locations for performing channel link testing and storing or displaying the channel link results; and e) using the scattering parameters of the mated connector pairs and the patch cords to move the reference planes at the display unit and remote unit to the necessary locations for performing permanent link testing and storing or displaying the permanent link results.