Time
2 hours 16 minutes
Difficulty
Beginner
CEU/CPE
3

Video Description

Rj45 Categories & Network Types for Wired Ethernet Just because the wires look alike doesn't mean they are the same. This lesson introduces you to the various types of cabling designations such as Cat3 or Cat 6, and examines why they are different and how that applies to their use and installation. For example, Cat3, Cat5 and Cat 6 cables transmit data differently both in terms of speed, distance, and packaging, so we diagram this configuration to explain how it works. So not only will you learn what each Rj45 cable category is configured to do, where you would use/install Cat 5 over a Cat6, you understand how each will transfer data, what type of data can be transferred, and how far that data can be transferred. Then we'll explain what device types they pair up with and what telecommunications transfer mode is required to perform their data transfer function and the network type where you would use each one.

Video Transcription

00:04
even though our wires looked the same, we have a few different categories of wires. Cat three, Cat five, Cat E, Cat five E and Cat six. These different categories transmit information at different speeds across our wires, so it's important for us to sort of get these memorized
00:22
and know what these different speeds are.
00:24
With our Catch three cable, we're gonna be transmitting at a speed of 10 megabits per second. It's going to be transmitting at a frequency of 16 megahertz. Our next step up is going to be Cat five cable, which is going to transmit at speeds of 100 megabits per second
00:41
and is also going to be running at 100 megahertz standard
00:45
or 153 in pe synchronous transfer mode. Now this asynchronous transfer mode is actually a particular type of way. That information is transferred across
00:57
the cables, but it requires two special devices on either end that send the information at asynchronous transfer mode. And it also means that we can't use a router in between these two connection points in order to route this the information any differently. So our asynchronous transfer mode
01:15
isn't going to be something that we're going
01:18
be typically running inside of our say, a home environment. So in most of our cases, we're going to be looking at that 100 megahertz transfer frequency over a cat five cable. Now our cat five e cable is gonna look very similar. Cat five e cable is going to be 100 megabits per second as well is the 100 megahertz and 155
01:37
megahertz asynchronous transfer mode.
01:40
I'm sorry, Um,
01:42
not 155 megahertz asynchronous transfer mode, rather 155 megabits per second and asynchronous transfer mode. The mode that will more than likely not be using and say, a home environment. We see that
01:55
right from right here that are cat five, cable and our cat five cable. They look like they have about the same the same statistics. Here they have the same stats. 100 megabits per second standard, 155 megabits per second. Asynchronous transfer mode at a frequency of 100 megahertz. Well, that's true. And
02:13
not true. At the same time,
02:15
when we're comparing these two cables
02:17
in our environments, cat five e is going to be if you have the option, it's going to be a better cable to use. We're going to see that 100 megabits per second standard becoming more of a reality more often with cat five e cable rather than our cat five cable. It is an upgrade from Cat five cable, but there
02:38
set in stone regulated statistics for each of them.
02:42
Uh, do look quite the same. But if you have the opportunity and you're choosing between wiring with cat five or wiring with cat by the and money isn't really the deciding factor. Then you'll want to lean more toward Cat five, our last step up from Cat five. He's actually gonna be Cat six cable.
03:00
Now our cat's six cable is going to transmit
03:01
ATS one gigabits per second, also 1000 megabits per second. This is going to be pushing at 250 megahertz, and it's asynchronous transfer. Speed is actually 155 megabits per second. So are non asynchronous transfer mode. For a cat six. Cable is actually gonna be
03:21
a bit faster with our
03:23
1000 megabits per second or one gigabit per second. Max here are a little step up from cat six. They also have Cat six, a cable which we're going to be looking at about 10 gigabits per second and we're going to be pushing that out at 550 megahertz. So review over these real quick r j 45 we're pushing it
03:43
100 meters max
03:44
cat 3 10 megabits per 2nd 16 megahertz cat, 500 megabits per 2nd 100 megahertz, 155 megabits per second. Asynchronous transfer mode Cat five e Samos cat five cats 61 gigabit a second, also 1000 megabits per second. Same thing. 250 megahertz
04:02
cat six a
04:03
10 gigabits per 2nd 550 megahertz. These cables also can sometimes carry P O E, which is power over Ethernet. P O is just the acronym we use our that can be used to power. We have different network types for wired Ethernet. Um, they're known as Ethernet, fast Ethernet
04:24
and gigabit Ethernet.
04:26
They have different technical terms that we call them our standard. Ethernet is going to be known as tin based T. It's going to be at 10 megabits per second. We're gonna see this and like our start apologies and again. It's going to be known as our Ethernet and we could be running this over our cat three cable
04:45
We also have
04:46
are 101 100 base T x, which is also known as Fast Ethernet, and that's running at 100 megabits per second. And we're going to be seeing this mostly with our cat. Five cables on our cat five e cables. And then we have our ah 1000 based T. We call this and gigabit Ethernet
05:03
and this is going to be 1000
05:06
megabits a second. And we're going to see these sometimes with our cat five e, but mostly with our cat six. And we can all see with our cat six a. What? We saw our cat sick sake and actually transfer at a faster speed that are 10 gigabits per second. So tin based T cat 300 based T X. That could be cat five
05:26
cap
05:27
fiv e Also cat six. Sometimes cats six will support that. Obviously 1000 based t 1000 megabits per second. Also known as our gigabit Ethernet cat five e cat, six cats six A. We want to remember the difference between these two sides.
05:45
We use these terms to describe our network types. So when we're talking about a network will say, Oh, this is this network is running at
05:56
this is ah Hunt 100 based T X Fast Ethernet, 100 megabits per second When we're talking about Oh, this cable is a well say this cable is a cat five e cable. So there is the difference between the two We wouldn't refer to as A. We wouldn't refer to a cable strand being a
06:15
100 base
06:15
T X, and we would not refer to a
06:19
network. We wouldn't refer to an enterprise and infrastructure as being a cat. Five e in infrastructure we would only refer to the cable strand is being cat five cable strand.

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Instructed By

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Anthony Harris
Systems Analyst and Administrator at SAIC
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