Abstract: A cable measuring device for measuring a cable of a predetermined LAN cable category wherein the cable has at least one twisted conductive pair and jacket covering the same includes a computer based device which removes tail up effect on the impedance/return loss measurement and which addresses the effects of jacket removed on the reflection test results of LAN cables.
Abstract: A lay meter includes a computer based device, a light source for creating a light plane operably connected with the computer based device, a shadow based sensor a light plane operably connected with the computer based device, and signal processing circuits and software for processing sensed signals such that a clean square wave voltage signal is generated in direct response to the lays passing through the light plane.