1 00:00:00,210 --> 00:00:01,920 In this video, I want to show you how 2 00:00:01,920 --> 00:00:03,210 to test the network. 3 00:00:03,210 --> 00:00:05,850 Now, when we created a cable, I showed you this device, 4 00:00:05,850 --> 00:00:07,770 which is known as a cable tester. 5 00:00:07,770 --> 00:00:10,391 In this video though, I want to show you a little bit 6 00:00:10,391 --> 00:00:12,660 of an extension on a cable tester known 7 00:00:12,660 --> 00:00:14,250 as a fox and a hound. 8 00:00:14,250 --> 00:00:15,300 So I'm going to get rid of this one 9 00:00:15,300 --> 00:00:16,920 for us 'cause we don't need that. 10 00:00:16,920 --> 00:00:19,590 And instead we're going to focus on this device right here. 11 00:00:19,590 --> 00:00:21,240 Now, like the cable tester I showed you 12 00:00:21,240 --> 00:00:24,510 before, you can actually pull this apart into two pieces. 13 00:00:24,510 --> 00:00:26,490 So in this case, I'm just going to slide it apart. 14 00:00:26,490 --> 00:00:28,590 And you see I now have two pieces. 15 00:00:28,590 --> 00:00:31,230 Now the good thing about this is it does have a cable tester 16 00:00:31,230 --> 00:00:33,720 built in, and you can see that down here at the bottom 17 00:00:33,720 --> 00:00:35,730 where it'll test pins one through eight. 18 00:00:35,730 --> 00:00:38,310 And over here we can test pins one through eight. 19 00:00:38,310 --> 00:00:40,170 So if I want to use that functionality, 20 00:00:40,170 --> 00:00:42,180 I'll simply take a patch cable 21 00:00:42,180 --> 00:00:43,380 and I would be able to plug it in 22 00:00:43,380 --> 00:00:45,993 to both sides just like this. 23 00:00:47,010 --> 00:00:50,130 And then we'll be able to run it by doing a test. 24 00:00:50,130 --> 00:00:51,810 And you can see here the lights are lighting up 25 00:00:51,810 --> 00:00:55,110 as they're changing 1, 2, 3, 4, 5, 6, 7, 8, 26 00:00:55,110 --> 00:00:58,650 and continue to go through it over and over and over again. 27 00:00:58,650 --> 00:01:01,320 But that's not the special thing about a fox and a hound. 28 00:01:01,320 --> 00:01:04,200 Really, it comes down to this piece right here, 29 00:01:04,200 --> 00:01:05,910 which is called a probe. 30 00:01:05,910 --> 00:01:08,880 A fox and a hound is also known as a toner probe. 31 00:01:08,880 --> 00:01:10,680 Now when you're dealing with a toner probe, 32 00:01:10,680 --> 00:01:13,620 what it allows you to do is plug in one end 33 00:01:13,620 --> 00:01:14,730 to a network jack, 34 00:01:14,730 --> 00:01:16,830 and then use this metal tip 35 00:01:16,830 --> 00:01:19,530 to touch cables along your distribution path 36 00:01:19,530 --> 00:01:21,420 or your patch panel or your switch, 37 00:01:21,420 --> 00:01:24,960 and it will make a noise when it finds the right cable. 38 00:01:24,960 --> 00:01:26,550 Now let me show you how this works 39 00:01:26,550 --> 00:01:28,260 and it'll make a lot more sense. 40 00:01:28,260 --> 00:01:30,030 First, I'm going to show you here in my studio 41 00:01:30,030 --> 00:01:32,730 and then we're going to go and do it on my live network. 42 00:01:32,730 --> 00:01:35,610 So what we're going to do is I'm going to take this patch cable 43 00:01:35,610 --> 00:01:38,100 and I'm going to connect this sender 44 00:01:38,100 --> 00:01:40,710 that's going to send the noise and I'm going to plug it in. 45 00:01:40,710 --> 00:01:42,180 Now, once I plug that in, I need 46 00:01:42,180 --> 00:01:43,710 to plug this into a network somewhere. 47 00:01:43,710 --> 00:01:47,250 So I'm going to take our old fashioned jack that we used, 48 00:01:47,250 --> 00:01:49,830 that we created, and I'm going to plug it in there. 49 00:01:49,830 --> 00:01:53,760 Now, once I do that, I'm going to have this set to scan. 50 00:01:53,760 --> 00:01:56,790 Now by setting this to scan, it's sending out a signal 51 00:01:56,790 --> 00:01:58,710 through this cable to the other end 52 00:01:58,710 --> 00:02:00,750 of this, wherever it connects to. 53 00:02:00,750 --> 00:02:02,460 Now we'll go ahead and put that down for a second. 54 00:02:02,460 --> 00:02:05,490 And as you can see, this cable really doesn't go anywhere. 55 00:02:05,490 --> 00:02:07,140 It's just going into my hand. 56 00:02:07,140 --> 00:02:08,949 But if I take this other device 57 00:02:09,810 --> 00:02:12,990 and I turn it on, you're going to be able to hear 58 00:02:12,990 --> 00:02:14,550 that little beeping noise, right? 59 00:02:14,550 --> 00:02:18,510 As I get closer to the cable, it gets louder. 60 00:02:18,510 --> 00:02:20,130 And that's the whole point of this. 61 00:02:20,130 --> 00:02:23,340 If I have a bundle of wires, I can touch that cable 62 00:02:23,340 --> 00:02:26,700 and know exactly which cable it is that I'm touching, 63 00:02:26,700 --> 00:02:30,090 and that tells me this is connected to that network jack. 64 00:02:30,090 --> 00:02:31,860 Why would you use a toner probe? 65 00:02:31,860 --> 00:02:33,510 Well, because a lot of networks you go 66 00:02:33,510 --> 00:02:36,270 and work in, they didn't do a good job of documenting it. 67 00:02:36,270 --> 00:02:39,180 They didn't label which room or which port it was. 68 00:02:39,180 --> 00:02:40,950 And by using this toner probe, 69 00:02:40,950 --> 00:02:44,640 I can figure out exactly which port is tied to which part 70 00:02:44,640 --> 00:02:46,770 of the patch panel by tracing it 71 00:02:46,770 --> 00:02:48,480 throughout all of the walls 72 00:02:48,480 --> 00:02:50,790 because in most places, the walls are drywalled 73 00:02:50,790 --> 00:02:52,890 and you're not going to be able to get to those cables. 74 00:02:52,890 --> 00:02:55,140 But by going through where the cables start 75 00:02:55,140 --> 00:02:58,230 and end the office jack and the patch panel, 76 00:02:58,230 --> 00:03:00,870 I can identify it and relabel the network. 77 00:03:00,870 --> 00:03:03,690 So what I'm going to do is I'm going to set up my scanner on 78 00:03:03,690 --> 00:03:05,160 and push that signal out from one 79 00:03:05,160 --> 00:03:06,930 of the network jacks in my office. 80 00:03:06,930 --> 00:03:08,460 And I'm going to go back to our patch panel 81 00:03:08,460 --> 00:03:12,120 and we're going to figure out exactly which port it's tied into 82 00:03:12,120 --> 00:03:12,990 because we're going to be able 83 00:03:12,990 --> 00:03:15,300 to use this toner probe to figure that out. 84 00:03:15,300 --> 00:03:16,740 I'm back in the server room now. 85 00:03:16,740 --> 00:03:18,557 I had my production assistant Jay run out 86 00:03:18,557 --> 00:03:21,090 and plug it into one of the ports in the office, 87 00:03:21,090 --> 00:03:22,290 and he hasn't even told me where. 88 00:03:22,290 --> 00:03:23,550 But we're going to figure it out 89 00:03:23,550 --> 00:03:25,890 because we're going to use our handy dandy toner probe. 90 00:03:25,890 --> 00:03:27,420 So what I'm going to do, I'm going to turn it on 91 00:03:27,420 --> 00:03:30,450 and as I go through, I'm just going to start on the patch panel 92 00:03:30,450 --> 00:03:32,100 and figure out where it is. 93 00:03:32,100 --> 00:03:36,300 So that one's not it, that one's not it. 94 00:03:36,300 --> 00:03:38,880 Number three, number four, number five. 95 00:03:38,880 --> 00:03:40,650 It's getting noisier. (device ringing) 96 00:03:40,650 --> 00:03:42,390 I think it's number six. 97 00:03:42,390 --> 00:03:44,910 Number seven's a little less, eight less, nine less. 98 00:03:44,910 --> 00:03:46,170 And so you can see it went away. 99 00:03:46,170 --> 00:03:48,450 So obviously it's number six. 100 00:03:48,450 --> 00:03:50,340 So if I look up here at number six 101 00:03:50,340 --> 00:03:52,260 and I use my little flashlight, it tells me 102 00:03:52,260 --> 00:03:53,940 that is in the break room. 103 00:03:53,940 --> 00:03:55,140 So Jay had gone 104 00:03:55,140 --> 00:03:57,000 and unplugged apparently our wireless network 105 00:03:57,000 --> 00:03:59,070 in the break room and decided to plug that in. 106 00:03:59,070 --> 00:04:00,840 And that's great so now we know where it is. 107 00:04:00,840 --> 00:04:01,830 And so if people are going, "Hey, 108 00:04:01,830 --> 00:04:04,530 the wireless network's not working," we can figure out why, 109 00:04:04,530 --> 00:04:05,460 because maybe he went 110 00:04:05,460 --> 00:04:08,220 and cut the network wire someplace between here and there. 111 00:04:08,220 --> 00:04:09,900 We'd be able to figure that out as well. 112 00:04:09,900 --> 00:04:11,670 But we wouldn't be able to figure it out here 113 00:04:11,670 --> 00:04:13,350 because if there's a cut in between, 114 00:04:13,350 --> 00:04:14,910 we're going to have to backtrack. 115 00:04:14,910 --> 00:04:17,910 And so we can start looking what's before the patch panel. 116 00:04:17,910 --> 00:04:20,399 And in my case, we look up 117 00:04:20,399 --> 00:04:23,400 and there's actually going to be wires coming in the ceiling. 118 00:04:23,400 --> 00:04:25,710 So Jay, if you can move the camera over here, 119 00:04:25,710 --> 00:04:27,410 we're going to show these blue wires. 120 00:04:29,700 --> 00:04:31,080 All right, so you can see these blue wires. 121 00:04:31,080 --> 00:04:33,840 And again, so if I start out over here, 122 00:04:33,840 --> 00:04:35,160 these are actually cable TV. 123 00:04:35,160 --> 00:04:36,780 That's not where we're sending the signal, 124 00:04:36,780 --> 00:04:38,790 but I do hear a little bit of noise and that's 125 00:04:38,790 --> 00:04:42,270 because these blue wires behind it are our Cat 5 cables. 126 00:04:42,270 --> 00:04:44,247 And so if I go over here and put my thing in, 127 00:04:44,247 --> 00:04:46,050 the one I'm touching is not it, 128 00:04:46,050 --> 00:04:47,880 but as I go through, I can poke 129 00:04:47,880 --> 00:04:49,607 until I hit the right wire 130 00:04:49,607 --> 00:04:50,880 (device ringing) 131 00:04:50,880 --> 00:04:51,870 and I found it. 132 00:04:51,870 --> 00:04:55,170 So now I can take that particular wire 133 00:04:55,170 --> 00:04:57,330 and I know that it's getting a signal at least to there, 134 00:04:57,330 --> 00:05:00,480 and I can trace that wire down using my toner probe 135 00:05:00,480 --> 00:05:02,790 until I find where the break in the wire is. 136 00:05:02,790 --> 00:05:04,770 This is a way that you can troubleshoot your networks, 137 00:05:04,770 --> 00:05:08,040 and that's why using these toner probes is so important 138 00:05:08,040 --> 00:05:09,750 and a good understanding of these. 139 00:05:09,750 --> 00:05:11,970 On the exam, if you hear fox and hound 140 00:05:11,970 --> 00:05:14,190 or toner probe, think about using it 141 00:05:14,190 --> 00:05:15,840 on your cable distribution network 142 00:05:15,840 --> 00:05:17,550 to find breaks in the wire or 143 00:05:17,550 --> 00:05:19,803 to identify and document your network.