Then go to your wiring closet move the probe over

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Then go to your wiring closet. Move the probe over each wire in a bundle, or over the patch panel until you hear the tone generated by the tone generator. Cable Tester 3:30-4:13 A cable tester is mainly used to test cables you've made or fixed to make sure they are in good working order. The numbers on the tester correlate to the one through eight pins of the cable. A cable tester can be a very simple inexpensive device which tests for continuity within your network cable, or it can be a very expensive device, like a time domain reflectometer or TDR. TDR is an electronic instrument that uses time domain reflectometry to characterize and locate faults on metallic cables like twisted pair wire, or coaxial cable. It can also be used to locate discontinuities in a connector, printed circuit board, or any other electrical path. If you're working with optical fiber, use an optical time domain reflectometer, or OTDR. Loopback Plugs 4:14-4:40 You'll also want a number of loopback plugs. Loopback plugs are used to test ports to identify if any network or nick issues exist. To test a port, you insert a loopback plug into the port. If the light goes on, your port is good. Also a loopback plug can be attached to a physical connection on the back plane of your computer, and sends any data that comes out of that device right back in. If the data that is sent is identical to the data that is received, then you know the device is working properly. Known Good Spares 4:41-4:57 It is important to keep some extra good working computer equipment available. This equipment is referred to as known good spares. A valid troubleshooting method is to replace the suspected bad equipment with equipment that you know is good. Replacing parts can help you narrow down problems on your system. Summary 4:58-5:14 That's it for this lesson. We discussed important tools that should be included in your starter tool kit.Make sure you label your personal tools with your initials, and keep them in a place you can always find. And one final recommendation, don't skimp on tools. Buy good quality tools that can last you for your career as an IT technician. The following devices and components are used for computer repair and maintenance: Tool Description Combination A combination ratchet has interchangeable bits with a ratcheting handle that provides multiple features in a
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ratchet/screwdriver single tool. Bit ends can be replaced for Phillips and flat-head screwdrivers, hex sockets, and torx (star- shaped) bits. The ratcheting handle allows you to drive the screw without repositioning the driver. Most computer components use Phillips head screws. IC insertion and extraction tool An IC insertion and extraction tool is used to add or remove integrated circuit chips that are used on motherboard and some computer components. For example, on some motherboards you can use the IC insertion and extraction tool to change the BIOS chip.
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