A technician arrives at a new building to find cabling has been run and terminated, but only the wall ports have been labeled. Which of the following tools should be utilized to BEST facilitate labeling the patch panel?
Answer B is incorrect. How’s a cable tested going to help you locate which wire is which ?
You’re going to use a Tone Generator to facilitate locating each wire run.
A terminated cable just means they've already attached the ends of the cable to their terminus point (in this case, a patch panel on one end and a wall jack on the other).
You can use a short patch cable to attach the tone generator to the wall jack while you use the probe to locate the other end of the cable in patch panel. Also, as the cables have already been terminated at the patch panel (using a punch down tool) there would be no physical way to use a cable tester with them. Only possible answer here is A.
Your contractor should have used a cable tester on each run when it was installed to verify the punchdowns were accurate. Of course it works. You plug the powered end of the tester into the wall jack using a short cable, plug the display end into the patch panel using another short cable, and confirm you get a reading on all 8 wires. Even the $5 ones that just light up the LEDs are still going to confirm you're plugged in to the right port.
B isn't in any way wrong; I've used a cheap tester to do just this while trying to track back unlabeled ports when I didn't have a toner available. It's just that A is also a perfectly valid and frankly better answer as it's going to be faster than plugging and unplugging a patch cable into dozens of ports over and over again.
Answer is A "Tone Generator". That's a necessity when locating the cables for labeling the patch panel. 'Cable Tester' only tests cable for Shorts or Opens but can't locate where the other of the cable is.
The answer is correct. Cable Tester will do “all” tone generator, wire map, tdr , and continuity. You guys can go on Amazon and look for Cable tester. It will do it all. Very tricky question.
But it doesn't generate a tone. I'd have to plug the receiver into the wall port then go and plug the tester into each port to find which cable is which. I'm still stumped but I think I will go with A as best. I've used both tools on the job for the exact reasons and the toner is just way faster.
It's not that B is wrong, it's just that A is also right. I've done this many times both ways when I only had one tool or the other available.
In both examples you're hooking the signal source with a short patch cable into the known labeled wall port end then blindly checking the panel for what lights up. You can either stick the other end of the cable tester in to each port on the panel and note the one that starts lighting wires up, or stick the probe near each port and look for the one that beeps.
They use this very scenario as an example on using tone generators.
https://www.youtube.com/watch?v=JHRIiw3OR6Y
A cable tester is correct because the question states that the tech arrives and the cables have been terminated. Nothing about the question is talking about a device that couldn't connect to the network.
Fix this answer. A cable tester checks for contuinity if a cable can run a signal it's entire length. In no way-shape-or-form can it help locate a run of cable. Does this website even check for correct answers? I've noticed atleast 15 OBVIOUSLY wrong answers with many people people debating and agreeing that the answer is wrong. Do not be mislead and always use the internet to find a consensus on misleading answers like this one that's listed as correct
If you stick a battery on a known end of a bundle of random wires then put a light bulb on the other end and see which one lights up, you just identified both ends of that wire. Of course you *can* identify a panel this way. That's all a cable tester is doing; if you're getting continuity, guess what... you just verified power is being sent through the specific wire you're looking for.
Of course it can work. It does work. People do use it this way in the field all the time. It's just that if a toner is going to be a better option if it's available.
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