Network Cable Testers


Xmultiple's Engineering Department

There are many different types of cable testers for network administrators and installers. The most common of these network cable testers are ethernet-based. These ethernet cable testers will often have several modes of testing the cables and connections. Because Ethernet is the most commonly used type of communication system for computers, ethernet network cable testers are the most common type of testers you will find inside of the technicians toolkit. A network cable tester can identify if the wires are paired correctly. It can also show if there is a break in the insulation, a situation which allows crosstalk between two wires that should not be connected. The tester can also tell whether the cable has the proper level of resistance.

A network cable tester can be a simple apparatus that merely identifies whether current flows through the cable, or it may be a professional-level, complex device that gives additional information that helps identify the problem. Professional-level network cable testers may not only tell if an open circuit exists, but may identify where the break is located. Some also identify the gauge of wire used and can generate their own signal to test for interference.

Basic network cable testers can test for simple connectivity issues but may not identify other problems that cause the cable to malfunction. Cabling may not work when it is near a source of interference or if the cable is too long. Intermittent faults may develop that do not show up when the cable is tested. Sometimes the problem is not sustained long enough to show up on the tester.


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