The LAN Cable Tester is an easy and effective cable tester with the ability to identify cable failures, check wiring, and measure cable length in the UTP (Unshielded twisted pair cable), FTP (Foil – screened (shielded twisted pair cable) cables, and COAX (coaxial cable) cables. It not only identifies wiring faults, such as open wires, shorted wires, miswires and split pairs, but also tests up to 8 different cables at one end. A stored cable library provides quick access to common cable types. U.S. Pat. No. Des. 446,135 TES-46 CAT-5 Lan Cable Tester Specifications Tests : UTP. FTP. Coax cables, two, three, or four wire pairs in twisted pair cables and test all category UTP cables and hardware.Verify end-to-end connectivity per EIA/TIA 568 wiring standard.Detects wiring problems : Opens, Shorts, Miswires (Crossed, Reversed, Split pair).Locates wiring/connection errors (distance to the open or short)Can identify up to 8 different cables at one end by provided remote identifiers.Measures cable length.Data memory and read function.Easy to use only : One button to select the test.Low battery, Auto power off. Description of LCD display Custom large size LCD. For more information, press "up" or "down" key to display the additional information. Description of Parts & Control keys 1). Press Power key to turn or off the tester. 2) Press TEST key to test the attached cable and indicate a pass or failure information base on the specified parameters for the selected cable. 3). Press SET key to access to cable selection, cable calibration, and other test tool settings. 4). Press LENGTH measurement key to measure the length of each pair of twisted pair cable or coaxial cables in meters or feet and tests for anomalies. ⑤ Press M (Memory), R (Read) key to memorize or read the memoried data (Max. 99 sets) ⑥ Press WIREMAP test key to display wiring connections, opens, shorts and split pairs. ⑦ Press the keys to scroll through a selection of choices or multiple displays. ⑧ Press ENTER key to enter a selection into the test tool and move to the next setting selection. Remote Identifier #1 (Optional 1 for #2, #3 & #4 , optional 2 for #5, #6, #7 & #8). Description of Parts & Control keys ⑨ Input socket : BNC connect for connecting coaxial cables. ⑩ RJ45 jack : Standard 8-pin modular jack for connecting UTP and FTP cable.