Network Two Buildings with Fiber Optic Cable


hey there networking pros in this video
we’re going to talk about using fiber optic components to extend your local
area network into another building or in a sense create a campus-wide Network now
in the last video we talked about the fiber optic components and if you didn’t
see that video I’ll leave a link here for you so you can go see that one first
and then come back to this one. In this video we’re gonna do a real world
application. So you’ll remember I talked about transceivers and fiber optic cable.
So in building A we’ve got a switch. And this yellow wire right here represents
the the internet service that comes from the outside world. So everyone in
building A has got access to not only each other’s network resources but
they’ve also got access to the internet. Over in building B we have nothing at all.
Right? So what we could do is get a couple of matched transceivers. So go on
one of the popular auction websites. But if you want to buy brand new that’s fine
too. I’m a little bit of a believer of using the auction website first just
because the enormous cost savings so I got a couple of matched SC multimode
transceivers and then I also got a 400-foot let’s pretend it’s 400 feet
I got a 400 foot multimode fiber cable and then I connect the two buildings
with the multimode fiber optic cable so as I’m connecting the two transceivers
right then the transceivers also have an
Ethernet port on them so if you don’t remember that from the last video I
didn’t really spend a lot of time talking about but see it’s got an
Ethernet port on it a copper Ethernet port I’m going to patch that in to the
switch now some switches will come with or you can get switches that come with
the transceiver already built into the end of the switch so the fiber
transceivers already built in but if you don’t have that you can just get the
transceivers pass them in add a switch to building B where there wasn’t one
before back to transceiver this way voila I am now sharing network resources
plus don’t forget the internet with all the people in building a and all the
people in building B so if only it were that simple the elephant in the room
here is how do I get this fiber-optic cable from building a to building B it’s
a couple ways you can do it in fact there may be more than two but
it’s either to go underground or it’s exit the building dig a trench lay
conduit and then come back out and go into the side of the building that’s one
way to do it the other way you can do it is with an aerial cable aerial cable you
see involves putting some kind of a reinforcing line in first
you can’t just simply run the cable through the air I mean you could but it
probably wouldn’t last for long because what happens is there’s gonna be a lot
of tension here the fiber-optic cable itself is not designed to endure that
tension so you need to either buy a cable that’s got what’s known as a
messenger wire already built in it and the messenger wire is like a steel
braided cable that takes the stress or the other thing you can do and this is
what I’ve done when I’ve done the installations and I’m not an expert but
I’ve done a couple of these is I got steel braided cable and I ran it from
here to from building a to building B and then I put one of those flex
conduits that kind of those three-quarter inch or 1 inch plastic
flex pipe conduits I strat I secured that to the the braided cable and then I
pulled the fiber-optic cable through that
there’s a few things you need to know if you’re gonna buy fiber-optic cable
usually I recommend buying it pre-made what I mean by premiums mean that the
ends have already terminated it is possible to do terminations yourself you
can buy the kit the kit is anywhere from one hundred to several hundred dollars
to take the raw cable and put the ends on it but in my situation what I’ve done
is I bought the cable pre-made and you can get cables pre-made to lengths and
I’ll show you in a minute on the end of the video some different resources some
pictures of the things I want you guys to know about so that you can make make
wise decisions about purchasing the cable so those are things to consider
it’s easy to do the transceivers it’s easy to buy the cable it’s the tricky
part is getting it from building a to building B now let’s switch over and
talk about some of the other things you need to consider all right if you
remember I said you can get premade cables to lengths most of the supplier
websites the good ones usually come with some type of a configuration tool where
you can go through and say okay I need this type of mode cable I need to put
this kind of end on either side it is possible you could have situation where
you would have you know an SC on one end and LC on the other dependent on your
equipment then you can specify the length anyway so you go through this
whole exercise here and finally at the end it can it can tally up the price for
you all right so that’s one way to do it the other thing you can do is click on
the auction websites you may find premade 400 500 600 foot cables it’s
okay to have something that’s longer than what you need you just need to
spool up the rest on either end I’ll show you a few pictures from installs I
did I am NOT an expert so some of you who work an outside plant all day long
may have lots of criticism feel free to share so we can all benefit this is an
aerial installation I did between two industrial buildings that were about 200
feet apart that orange thing you see going through the middle of the screen
that’s that flex conduit I was telling you about and it is attached to a steel
braided cable and let me zoom in here a little bit you can you can see that a
little closer so this guy right here this is a steel braided cable attached
to the building and then the Flex conduit exits
building a few inches below that there’s a bunch of silicon on the other side or
we’re actually on both sides to seal the from weather and then it’s attached to
the steel braided cable these little these little rectangular things here
those are buckles that that secure the cable on either side and then there’s
the other end of the cable going into the into the building I know it looks
like there’s another cable there that’s not mine that was a some kind of a
aerial cable that the the bail company had run many moons ago and it didn’t
even have a messenger wire in it so but I left it alone and then here’s some
indoor installation this thick yellow stuff here is actually multi strand
fiber so they think there’s I think there was 12 or 6 different strands in
there but anyway this is armored that’s why it’s kind of thick and this is the
way the slack is stored see how it’s in like a doughnut shape they make little
plastic Donuts that you can get to put on the wall to store your slack and
that’s common with fiber because like I said it’s pretty common to get premade
fiber cables so you’re gonna have slack on either end and when you when you want
to coil up the slack you want to have that nice wide radius like that and then
this is a breakout box for that same cable so okay I guess it was only it was
only three pair so it means there’s six different cable strands so that’s a
cable breakout box it’s it’s almost like a patch panel for cable I guess and then
there’s a smaller one again another another three pair right there alright
so I hope that helps you out I recommend you do lots and lots of research if you
decide to take on this endeavor yourself and if you’re gonna run an aerial cable
especially with that steel braided cable be very careful alright thanks so much
for watching see you next time

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