Sunday, February 21, 2010

How does a LAN Cable Tester work?

Some sites teaches you how to make RJ - 45 network cables. But as I browse over the net, I only found few sites that teaches you how to test the cables that you've made. One means of it is by using a LAN Cable Tester.

As shown in the figure above, this is a cheap LAN Cable Tester that I bought at less than 200 pesos(approximately 4 USD). However, it is well enough to get the job done. And now, how do we use it? Well, here are the steps:

Step 1: Get your newly - made RJ - 45 network cable and connect both ends of the cable in both RJ - 45 ports of the tester as shown in the figure below.


Step 2: You should see that the LED indicators at the same pin number lights up at the same time, or according to the correct sequence according to the cable you've made. Otherwise, your cable does not work.


Here are the following LED indication sequence that you should see when using your LAN Cable Tester:

If your newly - made cable does not work, the following reasons may have occured:

a.) Either ends of the cable, are not well crimpped yet. Try to crimp it more.
b.) Wrong color coding scheme when making the cable. Double - check the color coding depending on the variation.

Hope this post shed some light (again) for those PC techies out there.

Saturday, February 20, 2010

Proper Handling of Computer Components

Perhaps of one the safety issue in PC assembly is the static electricity being discharged by the technican. It is no secret to us all the we generate static electricity by means of rubbing (either intentional or unitentional) surfaces and objects. Though this electricity, is not at high as a high - voltage wire, this electricity is what an electronic component needs to be damage. And so, as a PC technician as well, i show you how to handle computer components, the right way.

The figure above shows how we handle our expansion cards (and the like) properly. At least, if ever discharge static electricity, it does not go directly to the electronic component (ICs, resistors, ad capacitors)that is inside the expansion card.





The next figure shows improper handling of our expansion cards. If handled this way for a long time, it is no wonder that the performance of our components deteriorate. And then eventually will damage our component.



 
Hope this post will guide all those PC techies to practice the safe way on how well handle our components. Like they say, "Handle with Care"....


Friday, February 19, 2010

Site Construction

I apologize that over the past weeks, I haven't added new post in this blog... Perhaps, that the time constraints in my workload and my graduate studies caught me up in this "dilemma"....And my "creative juices" has not been flowing lately...Rest assured that I'll come up with topics and forum over the weeks...Ciao...