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Sams Teach Yourself Network Troubleshooting in 24 Hours, Second Edition by Jonathan Feldman

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Cable Tracing

An unlabeled cable is a troubleshooter’s nightmare. After all, it’s in the wall, making it just a little hard to know where the heck it’s going. Fortunately, most sites only have a certain number of electrical closets, which narrows the number of locations that you’ll need to search. (There is, of course, the apocryphal story about the server and hub that gets accidentally plastered behind a wall with nobody being able to find it, but I’ve never believed that, have you?)

One tool is an absolute must if you’re trying to trace (and label) unlabeled cables—for less than $100, you can get an inductive tone generator and an inductive tone tracer. (Jensen Tools, at www.jensentools.com, is one supplier, but there are others.) The theory ...

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