Time
60 hours 39 minutes
Difficulty
Beginner
CEU/CPE
61

Video Description

Coaxial This lesson discusses coaxial cabling, which are designed a bit differently than UDP and SDP cablings. A coaxial cable only has one cable inside to transmit information, it is not braided like UDP and SDP. The single cable inside is used to transmit information. It also has a braided shield around it to protect against electromagnetic interference (EMI). Coaxial cables are used for cable and satellite box connections. There are two types of coaxial cables: RG59 and RG6. Coaxial cabling allows us to connect to a 'T" connector on the network interface card (NIC).

Video Transcription

00:04
now, aside from are you TP and STP cables I from our unshielded twisted pair and are shielded twisted pair cabling. We also have co axel cabling in our copper family. Now, co Axel Cabling also works on having a metal cable.
00:19
How having a metal wire inside of our cable to transmit electrical impulses.
00:24
However, our co axial cable ings are designed a little bit differently than our act than are you tp or our STP cabling czar while are you t P and R STP cabling have braided pairs of cable inside our main cable are co axial cable only has one cable that actually goes this inside of it
00:43
that transmits information.
00:45
So our co axial cable is made up of a metal wire, metal foil, braided shield and rubber insulation on the outside.
00:53
So our actual men are actual wire that carries our data.
00:58
Is that the very core? And this wire is what we need to make contact on in orderto actually transmit and receive information. Outside of that, that wire is insulated, and then that insulated is covered by a special mint special special metal oil.
01:14
And then outside of that, we actually have a braided metal shield. Now this braided metal shield provides us with
01:25
the additional the additional protection against electromagnetic interference that prevents us from having tohave the twisted pairs of cabling like we do in our U. T. P and R STP cabling. And are you tp and STP cabling. We use those twists
01:42
in order to help protect against electromagnetic interference.
01:45
Our co axial cable doesn't have that ability doesn't have those twists. It only has one cabling that red cable we have in the middle that transmits and receives information. So we need to have a braided shield around it,
01:57
and then, on top of everything we have our insulation layer. Now this collectable cable is what you'll find commonly connecting your your cable box, your satellite box, essentially your television box. It's our connectors that we see with the screw mechanism that you that has the one single case
02:16
one single rigid
02:19
wire poking out, and then you plug it into the connector and screw it in and the back of your cable box in the back of your satellite box. That's a co axial cable,
02:27
so our co axel cables were commonly used in 10 based 5 10 based too, and thin Net networks. These are some of the different types of networks. Were will see this co axel cabling
02:38
and now this co axial cable and comes in two main types. We have RG 59 we also have RG six. Now R R J R G 59 is Tipping was typically used in some of our older cable setups, like our our older cable wire to our house,
02:55
then also used in a predecessor to the Internet called ARC Net.
03:00
RG 59 is notorious for having a shorter distance than our next cable that we're gonna talk about this in the co axel family and this is RG six.
03:12
Now RG six has better shielding than RG 59. Thus, it allows us to go for a bit of a farther distance, the better shielding we have and the better We're able to push a signal through that cable so the longer, longer weaken run that cable without having to worry about our
03:29
data inside of our cable being corrupted in some way.
03:32
So we can we have better shielding so we can go farther distance and these were going to be the co axel cables that will commonly see connecting our cable boxes. It's gonna be a lot of times going to be what our Internet service provider drops to us to give to its Internet, and they can connect some. They can connect wireless satellite towers together,
03:52
not wireless, in that they're communicating to each other, but the satellite towers that
03:57
communicate with satellites or communicate across long distances. They are connected to their main control center via this RG six cabling.
04:06
Now this RG six cabling
04:10
is
04:11
commonly going to use the F connector. Now this F connector is that twist connector that will see when we're plugging our cables into the back of a cable box that you have to twist and twist and twist and twist and twist. And they could be They could be a little bit of a pain sometimes to get going, Um,
04:29
but once we get him in there,
04:30
keeps him in a lot. It keeps him in very securely, and we don't run into as many issues with breakage as we do with our r J. R. J 45 cable ings are Art R J 45 connectors that little plastic clip can break all the time. So we twist them in and then they're very secure in there
04:50
and we can and we can see why we would do what way would want that type of connector,
04:56
especially if we're going to use these cable ings over long distances. Our Internet service providers going to use these, these cable ings. We want a connector that when we plug it in and twisted in securely and tighten it, we know it's going to stay.
05:08
So we have two main connectors we need to know. Go with our co axel cabling. These are our being C connectors and R f connectors.
05:18
Now our BNC connectors stand for British naval connector and this is what I like to call our notch in lock connector. It's going to be our connector where we have to go where we line up the notch much like we have here, where we line up a notch with our connector and we line it up and then we twist it to secure it.
05:39
That's gonna be our notch in luck.
05:41
So
05:43
with our BNC connector,
05:45
you know the connector here
05:47
and then we have the other side that we placed in.
05:54
And then
05:57
our side that is actually our male side that is going into the other end of the connector is gonna have a notch on it. And then the female side is going to be designed so that
06:11
we simply twist them together and it locks it in there.
06:15
Now, this is going to allow us to connect to a tee connector on our network interface card. So
06:21
when we're using BNC connectors anarcho axel network say, for example, you see, you see a test question that says what type of cabling would use a BNC connector and then they have fiber,
06:36
They have fiber,
06:38
U T P
06:41
STP and then co Axl, you want to choose co Axl because Cole axel cabling is what we're going to use with our BNC connectors, not fiberoptic, not shielded, twisted payer and not unshielded twisted pair co Axel goes with our BNC connectors. And then, if you see ah, questions such as
07:00
what type of connector on our network interface card
07:02
would we use with with A B and C cabling and that would be a called a T connector
07:10
in that tea connector is called such because it looks like a tea. And then
07:15
we would plug this end of the tea connector
07:17
into our We would plug this into the tea connector into our network interface card,
07:24
and then our cabling
07:26
runs
07:27
the rest of the length.
07:30
Now we'll talk. We'll talk more about our different network topology types in a later in a later module. However, one thing to know now is that CO actual cabling is is very common in one of our networked apologies that we're going to talk about where you have. We have a single line
07:49
in that single line
07:51
connects all of our different nodes. This is called a bust apology. This is where we have a single main cable, and then all of our computers connect to that main cable, typically by our T connector, so we would have our connector,
08:05
and then this connector would connect to our network interface card and then just keep going to our next computer and our next computer and our next computer, and we'll talk about the benefits and the disadvantages of that type of network topology in our later module. So stay tuned.
08:20
Next. We have our F connector now R F connector. I just talked about a little bit. R f connectors goingto have that screw connector that we plug in and we twist and twist and twist and twist and twist. It's not gonna be our notch in lock. We aren't gonna plug it in and lock it once we're gonna plug it in and then twist several times until we lock it down.
08:39
Now this is common on our cable boxes or on our satellite boxes, and we use these cables to make sure that we're plugged in that were secured. And we don't have to really worry about that. Connected as much as we would say in R J 45 connector, where the little plastic clip can get broken if we are very careful.
08:56
So that's our co actual in cable in. That's our co excellent cable. In a nutshell. We have our metal wire, which is going to transmit our data. Covered by our foil are braided shield and then our rubber insulation
09:09
Arco Axel cables, remember are going to commonly be used in our 10 based 5 10 based to and are thin that networks
09:16
and then our two main types of our Co Axel cabling are going to be our RG 59 in our RG six. So if you see RG 59 you see that RG six think Oh Axl RG 59 again commonly is with Arc Net
09:35
RG six Better shielding and F connectors
09:39
And then our different connectors for our co axel cabling are going to be our B and C are not unlock connectors in our f connector are screw connectors.

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Anthony Harris
Systems Analyst and Administrator at SAIC
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