Alien Crosstalk Testing
When installing 10 Gigabit Ethernet (GbE), an important part of the certification process is testing the network for the electromagnetic interference that can occur between wires or cables which are closely bundled together, otherwise known as Alien Crosstalk. Even though it may appear that Alien Crosstalk (AXT) testing can be a lengthy and frustrating project, there are ways of simplifying and speeding up the certification of your 10 GbE network.
The easiest way to pare down the amount of time spent on AXT testing is to divide it into two parts: first, making sure that your cabling meets the performance requirements for transmission, and secondly, ensuring the network’s compliance with Alien Crosstalk specifications.
When each link has been found to have an acceptable level of signal transmission, it is then time to move on to the second part of the evaluation process, which determines whether or not the network’s cabling meets Alien Crosstalk requirements. This phase calls for the installer running the tests to know exactly how the bundled cable in that given network is configured, since each bundle will be measured for combined crosstalk influence, in preparation for a representative link test.
The standard for performing representative AXT evaluations is to test whichever is greater: either five links, or one percent of the installation’s total number of them. The easiest way to go about selecting these test links is to do so while results from the first phase of AXT testing are still organized and available in a computer. The following are a few guidelines along which these “disturbed” or “victim” links are tested.
The right testing device -- one with good analysis and test result management software -- is also crucial to successfully completing your network’s Alien Crosstalk certification. Fluke Corporation’s DSP Digital CableAnalyzer™ and certification testers, available at CableOrganizer.com, are equipped with LinkWare Cable Test Management software, which allows the user to easily analyze both copper and fiber cabling, as well as review test results.
Efficient evaluation methods, partnered with versatile testing equipment, can help you accomplish Alien Crosstalk and other network certifications in the shortest amount of time possible.CableOrganizer.com offers the help and resources needed to complete your network evaluation quickly, so that you can be free to move on and tackle your next project!
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