Copper Twisted Pair

Video Activity

Connectors within a copper twisted pair This lesson covers connectors within a common twisted pair; these include: Registered Jack 45 (RJ45): there are three types Standard Straight Crossover T1 crossover Registered Jack 11 (RJ11): used by telephone wires.

Join over 3 million cybersecurity professionals advancing their career
Sign up with

Already have an account? Sign In »

31 hours 29 minutes
Video Description

Connectors within a copper twisted pair This lesson covers connectors within a common twisted pair; these include:

  • Registered Jack 45 (RJ45): there are three types

    • Standard Straight
    • Crossover
    • T1 crossover
  • Registered Jack 11 (RJ11): used by telephone wires.
Video Transcription
So what type of connectors are we gonna have on our twisted pair? Well, are too common Connectors that we're going to see are going to be R. J 45 in R J 11. We'll talk about R J 11 a little bit more in a bit, but just know for now that it's typically used by our telephone wires.
But R R J 45 is the connector that we plug in to get an Internet connection on our computer. Typically,
it's our standard Ethernet connector. R J 45 stands for registered Jack 45 we use it to in order to get a standard Ethernet connection on our cat cables. Now R. J 45 has a couple different types of connections that we can have a couple different types of way
ways that we can set up our cables inside our connectors
register. Jack 45 is a connector that looks like this one.
Now this registered jack 45 connector. We crimp on to the end of our cable,
and we plug in to our actual computer or actual device.
So are our J 45. Cable
eight pins
in each of these eight pens
with one of our twisted pairs. We take these different individual wires. We place them in a specific order inside of our inside of our R J 45 end and we crimp it down,
which will demonstrate in a minute.
But the order in which we placed those R J 45 of those individual cables inside R R J 45 connector indicate whether our cable is going to be a standard straight across over or t one cross over. Now these are three are three main different types of cables that we need to know that we need to know what they dio
now. Our standard straight is the same standards on both end. I will talk about our standards in a second, but just know that our standard straight is going to have the same cable to pin arrangement on both ends of our cable. And these cables are typically used for connecting different types of devices,
like connecting a computer to a router
or connecting a computer or a switch to a router or a switch to a computer. They allow us to connect different types of devices to allow a Stainer transmission of data.
The in contrast to this we have our crossovers now are crossovers aren't the same pronounce on both ends. We have our tea 56 a cable arrangement on one end in our T 568 b cable rent arrangement. On the other end, simply speaking, were changing
around some of where our cables are.
Most importantly, our pins one and two are transposed with our pins are transposed with our pins
six and 44 and six air transposed with our one and two. And so they switch there. And this change allows us to connect to dip two of the same devices together, like being able to connect a computer to a computer with a single cable through a network interface card or connecting a
a router to a router or a switch to a switch.
And this allows to connect same types of devices together. Using this crossover cable. We may even we ah, lot of times. We also use a crossover cable for actual management of the device so well connected to a router, or will connect to a manage switch with a crossover when we're going to perform management functions on that switch
instead of actually using that switch to connect out to other devices.
So we it's good to understand when we use the standards a standard straight versus across over again a standard straight connects different devices if we're just going to use those devices for standard connection. And a crossover connects the same same devices
when were and when we're using a computer to manage, a certain device will also connect with a crossover.
And then we have another type of cable called a T one cross over. Now we'll talk about T one devices and t one interfaces in our later module. But our T one crossover simply lets us connect to T one devices so it allows to connect
multiple T one devices to each other
with our crossover cables. Again, it's a cable that connects multiple of the same devices together. So that makes it easy to remember that our T one crossover is going to be a cable that allows us to connect different T one devices together.
So rather than a computer, are a different device to a T one device,
it would be a T one device to a T one device. We could use that T one crossover
now on our T one crossover when we look at our two different cable ends will notice that they're different as well.
Maybe mainly our pin one pin tube and foreign pin. Five. Ah, similar with are are different type with our other crossover will transpose Arpin ones in fours pins to pin two and five. And we'll use that transposition
in order to make sure that we are using are correct the one where Artie one crossover is functioning properly
and we're able to connect these two different T one crossovers using that connection.
So on our on one end of our cable will have a pin one that connects to the other end of the cable on pen four.
Pin to. On that same ends, the pin one will connect to pin five on the other end,
and then
additionally, Pin four will connect to the other end's pin. One. Arpin five will connect to the other end's pin, too.
So we mentioned a second ago about our t 568 a m. R. T 568 be standards now R T. 568 a m. T. 568 be standards help us to make these cables help us to standardize our straight through and cross over cables without having to remember every time.
Okay, so this is a cross over. So I need to transpose this pan in this pan
or what were what were the colors that I used on the other end of my cable or what were the colors that I used when I was originally setting up my network? We don't have to guess we don't have to make up our own color scheme for our network. We can use one of the standardized color schemes t 568 a or T 568 b.
Our cables don't have to be one of these color schemes toe work.
All that really matters is that we are setting up the cables in a way that matches their function. So if we wanted to do a straight through cable, that was blue orange that we want. If we wanted to do blue, orange, brown, green,
brown, white, Blount, brown are blue, white, orange, white, green, white And just do that the same on the on the same. Both ends are on different ends. That's fine.
A cz, long as our cable to pan out arrangement on one end corresponds to what we need. Need it to be on the other end. We can use whatever colors we want, but we highly highly recommend you use a standard
because the standards are going to allow us to have a lot better management and be able to have a lot better documentation of how our environment it's set up makes a lot easier. Easier on us in the future by sending it up to a standard so
R t 568 a standard dictates that
or essentially says that our pin number one is going to correspond with our green white cable are pin number two is gonna correspond with our green cable pin Number three is going to be orange white pin number four is blue pin number five is blue white pin number six is orange. Pin number seven is brown white,
and pin number eight is brown.
Now what I mean by orange, white, green, white, brown, white and blue white. Well, that that just means that this cable has this particular. That particular strand has two colors on it. It's mainly white, with a strand of a line of another color on it. So a green white cable would be it would look like
it would be one of our smaller cables here
that is mainly white and then has a has a vein of green running down it toe. Identify it as green white.
We would then take. We would then take our clip here, and we would face it with the actual
clipped part away from us. And then we would count the pins 12345678 And we would align them up appropriately so we would take all of our different cable ings. We would line them up how they needed to be based on our standard. We would slide them in, and then we would crimp our cable down.
Let's take a look at that after we take a look at our other standard,
which is our T 568 be standard now a T 568 be standard is going to be pin. One is orange white pin, too, is orange pen. Three is green white pin four is blue. Pin five is blue white pin six is green. Pin seven is brown white,
and pin eight is brown.
Now remember, if we're doing a standard straight through cable, such as plugging in our computer to around our computer to a switch, we're using just one standard on both ends, so we're either using type 568 a on both ends or their type 568 be on both ends
if we're using. If we're doing a crossover cable, all we have to remember is 568 a on one end
568 be on the other end.
Up Next
CompTIA Network+

This CompTIA Network+ certification training provides you with the knowledge to begin a career in network administration. This online course teaches the skills needed to create, configure, manage, and troubleshoot wireless and wired networks.

Instructed By