1 Introduction The TM-902/TM-903 Multimedia Cable Tester (TM-901N LAN Cable Tester)is a hand-held test instrument that lets you verify and troubleshoot the Lan cable of twisted pair.
2 Safety Precaution CAUTION Be extremely careful for the following conditions while measuring z Do not operate the meter under the environment with explosive gas (material), combustible gas (material) steam or filled with dust. z In order to avoid reading incorrect data, please replace the battery immediately when the symbol “ ” appears on the LCD. z In order to avoid the damage caused by contamination or static electricity, do not touch the circuit board before you take any adequate action. z Operating Environment: Indoors use. This instrument has been designed for being TM-901N/TM-902/TM-903 2 used in an environment of pollution degree 2.
3 The verifier does the following: z Detects opens, shorts, miswires and split pairs on twisted pair cabling. z Displays graph wiremap , opens, shorts, miswires, split pairs, and the remote ID number all on one screen. z Identify remote ID number only one pair. z Measures length. z Using multiple remote ID up to 8 locators. z Low battery detector “ ”. z Auto backlight. z Auto power off.