Time
31 hours 29 minutes
Difficulty
Beginner
CEU/CPE
30

Video Description

Media Converters and BPL This lesson covers changing a light signal to an electric signals; media converters are used for this purpose. There are two types of media converters: single mode and multimode. This lesson also covers Broadband over Power Line (BPL). It uses an existing power infrastructure and uses the cabling to send data packets. There are two types of BPL: Access and in house.

Video Transcription

00:04
So with all of these different types of media that we have this fiber off these fiber optic in these
00:10
co Axl and are different Ethernet cables. We need to have some way that we can convert our light signals to electrical signals. We can't just take a standard converter. We can't just take a converter that connects. That makes our fiber optic cable
00:26
touch our electrical, cable or electrical wire. And we can't just make those to touch
00:31
and then have the signal keep going. We actually have to completely change what type of signal we're using. We're going from a light signal to an electrical signal, so we need to have a converter, that record that is able to interpret those light signals or electrical signals and translate them to the other type of signal.
00:47
And these air called our media converters, and these translate our signals.
00:52
Now our media converters. We have a couple different types. We have single mode fiber to Ethernet converters, multi mode fiber to Ethernet, convert converters,
01:00
fiber on our fiber optic to CO axle and then single mode to multi mode and back and back the other ways as well. These allow for transitions. Because, remember, our single mode fibers don't operate the same way our multi mode fiber do. Our single mode and multi mode fiber are going to be able to go different distances.
01:19
They send out. They have different signals that they're that they're bouncing inside of their cable ings
01:25
at different, different
01:26
frequencies, essentially, and these different types of cabling. We couldn't just connect a single mode to a multi mode table directly or a multi mode to single mode and expect our data to keep traveling. We need to have a media converter to convert that signal from single mold mode to multi mode or multi mode to single mode
01:44
and the same with our again with our different fiber optic cables to our Ethernet
01:48
in our fiber optic cables to our co Axl. So keep that in mind. If you're designing an infrastructure that utilizes both fiber optic and copper cabling, you'll need to have some sort of you'll need to have some point, some sort of converter to translate that data over from the fiber optic
02:07
optic to the media are to the Ethernet
02:08
or the fiber optic to the copper, and then the copper back to the fiber optic,
02:15
and then we have BPL. Now BPL stands for broadband over power line, and it really is an ingenious solution to the problem of not having existing cabling for an Internet connective ity. Internet has exploded rapidly within just the last couple of years.
02:35
Um,
02:35
and there are many, many buildings. There are many locations that don't have cabling designed in their infrastructure to deliver Internet, but they do have power cabling. They do have cabling that's meant to deliver electricity, and our data packets
02:52
can travel over electrical signals. So why not use
02:55
that existing powers that existing infrastructure that we use for electricity and then use it for Internet? And that's what broadband over power line does.
03:07
It takes our existing power infrastructure, whether it's the power cables in our walls or the power cables that deliver the power lines that deliver electricity to our our office spaces or houses. And it can use that cabling to send over data packets.
03:23
So there's two main types of BPL. There's two main types of broad
03:27
being broadband over power line. We have access BPL, an in house BPL. Now access BPL is going to be the broadband over power lines when those power lines are the big power lines that we see deliver power to locations. So when we're talking about access BPL,
03:46
we're getting
03:47
access to the Internet to our actual building. So that's going to be our access BPL. We're going to deliver the broadband over actual power lines
03:59
and then we have in house BPL in house BPL is going to be used well in house in the building. So we have existing power lines. We have existing circuitry within the walls of our house. We're going to use that circuitry toe, actually send
04:15
Internet signals through the walls. Think we have electricity that runs through those cable ings already. But they're going to operate a certain frequencies. They're going to send constant streams of electricity. They're not gonna be really alter, alternating or fluctuating or sending frequency or data packets.
04:32
So we utilize that and we send our data packets through those lines. We use
04:36
electrical, the electrical current, and we use different frequencies in order to send those data packets. Now,
04:44
when we are when we're setting up BPL in our house, we were setting up broadband. Uh, we're setting up this broadband over power line in our house, we can actually use small boxes that we plug one end into our router with a standard with the standard R J 45 cable,
05:01
and then we plug the other end into an actual
05:05
power socket in our house. We just plug it in to the power source, and it looks like it's just a box that we're using to get power. But what that's actually doing is it's actually sending out data through our powers through our power lines. That's going to send that through our house over to another electrical socket where we haven't not are in point plugged into,
05:24
and then that's just gonna plug right into our computer.
05:27
So it's a again, a very ingenious solution to the problem of not having infrastructure readily available for Internet because of how rapidly it's exploded and just using our existing infrastructure to help transmit those electrical signals. Now there are a couple issues with broadband over power line that we do have to take a look at.
05:46
It's not a perfect solution. It doesn't provide us with the type of connective ity. If we were using
05:50
dedicated lines just for Internet. We do have to share those lines. So power lines are more noisy than standard Ethernet cable ing our standard lines that air dedicated just for Internet. If we're using power lines, we can expect there's going to be other data
06:06
are there's going to be other electrical signals on there because they have to deliver electricity to our devices.
06:13
There's going to be clicks on the line when devices connect into the lines in, turn on and start receiving power so they're going to be more noisy. There's also There may be different quality restrictions because of different devices that are needed in power infrastructure such as
06:30
transistors and relays, transformers and a C to D. C. Converters.
06:36
These can all provide are these can all cause interference that will cause different types of quality on our lines and well. And then we also have some devices that will essentially cancel out data packets entirely because of what they do to our what they do to our power as they're going through them.
06:56
Transformers and a C to D. C. Converters are two big ones.
07:00
When are when our broadband over power line hits a transformer or it hits an A C to DC converter. What, What? Those different devices, due to our power with how they cycle our power and how they change them over, is going to completely disrupt any data that we're trying to send over that
07:19
Now. This isn't a big of a deal in our in our actual houses or our
07:24
in house BPL. We won't be hitting as many transformers or a C to D C converters. But when our actual Internet service providers are trying to design broadband over power lines solutions to our house, this is something they have to take into effect because there are Mawr, transformers and a C to D C converters
07:42
along those lines, so they can't just say, Oh,
07:45
we have power lines that start. Let's just set up a connection here on our Internet. We'll just set up a connection here at the Power Companies spot and we'll set up a connection in your house and we'll start pushing your data Well. There's additional set up that they have to do actually along those lines to help circumvent
08:01
issues such as these trans transformers and these a C. D. C. Converters, so that we can actually
08:07
send those data packets over our BPL

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