Labeling and Certifying Your Cables

Proper Labeling – If there is one thing that my integrator and I would do all over again, it would be to certify and properly label all of the cables in my home, during the ‘wiring phase’. This would have saved us a tremendous amount of time (days) and money. I can’t even begin to tell you how much pain and time it cost us not having properly labeled and certified cables. My Integrator’s plan was to do this done from the very beginning, but the installer that he assigned to my job chose to label my cables with numbers and then create a reference table, which he kept to himself. Sometime after my house was dry walled, this installer got fired, and as retaliation, he chose to conveniently lose this table, leaving us back at square one. It also turned out that, although he originally put numbers on both ends of the cable, when he cut the cables to stuff them into their appropriate wall boxes, he did not label the cables again.

Recommendation – Since we know what each cable is intended for prior to wiring the project, and adequate label printers are available almost anywhere, starting as low as $29.00, the way to go is to label each cable in plain English: i.e. ‘Dining Room Amplifier’, ‘Living Room Touch Screen’, or ‘Patio Speakers’. This way, if a new installer is assigned to finish the job months later, there is no guessing involved. The label maker that I bought is made by Brothers. I bought it at Office Max and it cost me $39. I then ordered special ½” label tape that is designed for application on cables. When labeling equipment that is black, like power supplies or rack mounted equipment, we used white-on-black tape. For all other label needs, we used black-on-white. Now it is so easy to see what is connected to what, and if we want to make a change, there is no guessing or ringing out cables involved.

Certifying Your Cables – There are a couple of ways to certify your cables documented and undocumented. The first is to simply test all of your cables during the ‘wiring phase’ of the job. The second is to test them, then print out the results to serve as documentation for the integrator and the customer, that all cables have been tested and passed during that phase. Although it is not required, it wouldn’t hurt to test the cables again after drywall to insure that none of the cables were damaged by other contractors on the project. In many commercial projects, this is a requirement.

Many installers believe that a simple continuity test is sufficient. It is not. That was OK for telephone, but now that we are installing devices that require significant bandwidth from your network, like IP Audio and IP Video, it is extremely important that these cables are terminated properly and that their integrity is intact, so that you can maximum performance from your network.

The difference between a reliable system and one that is plagued with problems is usually in the wiring and termination. My installer was able to demonstrate to me that a bad cable that passes the ‘network’ test with a simply continuity cable tester, can fail when tested with a proper network cable tester.

Recommendation – Test all cables during the ‘wiring phase’ of your project, before drywall and consider testing them again after drywall, if budget allows. Printing the test results of all of the cables is a great option, and may even be required on some projects.

If my blog has been helpful to you in any way, please drop me a note. I would love to hear from you and learn what other parts of my ‘building an IP home’ experience would be helpful to you: hermansblog@netstreams.com.