Network Two Buildings with Fiber Optic Cable
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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

82 thoughts on “Network Two Buildings with Fiber Optic Cable

  1. Another great video! In risk of repeating myself: set up Patreon man! I would be happy to pledge a small amount a month so you can create more video’s!

  2. Do you think Moff tarkin knew that Lord Vader was Anakin Skywalker?

    Been a subscriber for many months. Love the knowledge.

  3. this is pretty clear and succinct, thanks for the info.
    it is helpful in advancing my understanding of webpages.

  4. 1, there is no such thing as fibre "pairs" you don't have 3 pairs, you have 6 cores.
    2, special aerial cable should be used, it often has non metalic support members, but even long dist aerial that may have ss wire cable, is encased in sheathing, but also needs earthing since its conductive.
    3, aerial cable is uv stabilised and doesnt need conduit

  5. Suppose if a big Tier-1 broadband company have to launch a FTTH service in few states in which there are 100s of large and small cities and towns.

    Q1. Do they need a fiber Central office or called exchange office same like old copper telephone exchange office in each and every single town?

    Q2. if a city is very large in area then do broadband company need to make multiple Central offices/fiber exchange offices in a city or town?

    Q3. How many Kms maximum long distance a local ftth broadband exchange/Central office can expand its fibre optical cable to their customers with high speed broadband 1gbps with low Attenuation.

  6. 9i6 information. in this condition, can i check the devices ping ( Pc's, Laptop's, and Routers etc) on this network?

  7. That orange external cable will have rain water run along it at either sides and into the buildings causing damp issues.

    Would’ve expected the standard U bend prior to entry of the cable on the external sides to avoid this issue.

  8. PRO TIP: When you enter a building with any cable always go up slightly before entering so you don't have water running toward the building but away. Look up drip loop for more information.

  9. PRO TIP: Use stainless steel welding wire to overlash the fiber to the cable and use clamps at each end to attach it to the cable. Two wraps per foot should be plenty and it will never fail in the weather or due to UV light. EDIT> This can be done while the cable is still on the ground with no overwrap machine for shorter runs. https://www.youtube.com/watch?v=YQGPuGuPNQM https://www.homedepot.com/p/Forney-0-030-Dia-308ER-Stainless-Steel-MIG-Wire-2-lb-Spool-42298/206311146

  10. PRO TIP: Always leave some slack if you are going to a pole to allow for pole movement. You don't want your pole to snap your cable or damage the building at the other end.

  11. This is old stuff. I saw a video, a person could provides internet traffic service to maybe a whole village with small dish antenna.

  12. This a nice video. The first thing I look at though is fiber speed – how fast do I need – 1Gb or 10Gb. Then you select the right type of fiber (many choices but they are dictated by the speed an length) Then you select the right transceivers. You might want to make an associated video if you don't already to discuss multi-mode, single mode, lc, sc etc. What the connectors look like, how to finish the break out box and even how to change the ends when they don't fit. That doesn't diminish the good stuff in this video – very nice job. Just thinking a more detailed review of that would make the two together even better.

  13. Good job explaining fiber optic cabling. And yes terminating fiber optic cables are a pain.I would buy it in pre-made cables to length as well. Fiber Optics is actually pretty easy. Thumbs up!

  14. Wildly over simplified campus wiring. No discussion of distance/bandwidth constraints of multi-mode vs single-mode, Gbics, diverse path, LACP/EtherChannel/PAP, STP, yadayadayada…

  15. Be sure that your cable has built in uv resistance. Most outdoor cables are "outdoor rated" but this is usually only an indication of it being ran underground.

  16. Great video! Can you please do a Free-space optical networking video of two or more buildings connected? Thanks.

  17. What was the speed of the fiber being used ?
    I also didn't see a "vendor" list for the premade cable or transceivers

  18. i'm a student currently studying networking and this video really helped me. My classes usually cover the different types of cables and topologies. I've always wondered how to connect a network between two buildings separated by several hundred feet with cables and you assisted with that in a clear and concise manner.

  19. any large truck going into building B have to watch out for that fiber optic cable. Could you wire it higher? maybe close to the roof?

  20. In India companies just run the cable over air without any conduit or messenger cable. They just tie the fiber on each side.

  21. I am waiting for you to say "I am sorry Marty that this is not to scale" when you said image that this cable is 400 foot cable. How ever you never said

  22. Steel cable between buildings is a fantastic lightning rod. Even assuming the method is correct, why not re-use the existing wire strand instead of adding more clutter. In any case, wireless bridging is far better to use with currently available devices. Not as fast, no, but full gigabit speed is not required for most workshops I would say.

  23. Optical fibre can easily be determined by by its starting/end point , pin looks different from others !!

  24. I'm wanting to connect my workshop to my home, via fiber. I update modules on BMW automobiles and BMWNA requires a wired connection. The distance is only about 100ft. If I understand this demonstration correctly, I can buy two inexpensive transceivers, an appropriate pre-made cable, (I've already got a switch on hand) and I can simply run the cable in buried conduit. Correct?

    We've had induced voltage damage before. No way I'm running copper. Thanks in advance for your reply. Helpful video!

  25. Is there like performance disruption when you use a media converter? instead of buying a switch with SFP module?

  26. ok, I have a question. I been looking around on this answer but I am going to do a Livestream for a horse show. Thing is I need a 400-foot long cable to make this happen. Now for budget sake me getting a "switch" that next to the "Modem or Router" get 100-meter cables and use "repeaters" until it connects to my equipment? This just to help me through a 3-day event.

    Someday I get fibre for future events but I need to get past this event in the mean time.

  27. How come you don't do a little downward loop with a hood to protect the building hole from weather? Seems cleaner than "a whole bunch of silicone".

  28. There is also the element of the TYPE of cord you are using…so the yellow wire is a crossover cable. You can just run a crossover from one switch or hub to the next. No transievers. Even more simple and 1000"s cheaper at an industrial level. You also would not be bringing a yellow crossover into the home. It would be at least a cat5e at the demarc location.
    The patch or straight cords are blue and are classified by density. You would not necessarily be able to use any patch cord. They run between Category 3 and now 8, including 5 e and 6a. So you need to know how much data you are going to be pushing in order to get it right. Cat 3 and 5 are obsolete. 5e can handle 1 gig/sec speeds. The categories then in crease by one order of magnitude( ×10) up to Cat 7. Cat 8 is 4 times faster than 7 at 40 gb/sec. Blazing fast. Literally as fast as your brain.
    Moral of the story….be careful. It can be an expensive fix.
    The strand you hung was great. Nice job. If you wanted to consolidate the copper and fiber, they make a shielded twisted pair patch cord…STP. You could run them right next to each other as the twisting and shielding aspects protect from electromagnetic attenuation.
    I also want to remind everyone that while fast data is awesome…it is radiation. It will cause cancer if we continue to push heavy doses of high band width frequencies through our bodies. Microwave radation. Thats why Satelite dishes are so large, to spread out and dilute that microwve signal. Now think about the size of your phone.
    The smaller the device the stronger the signal hits you. Keep ypur phone in your butt pocket or at least 0.35 inches from the family jewels.
    Be safe. Love light!

  29. Looks clean, but in general, any installation anyone does, it's always best to insert the cables/pipes into the building from bottom to top, that way there is very little chance of water entering the buildings even when the silicone ages or gets tampered with.

  30. They male a cable called "ADSS" All dielectric Self Supporting cable that does not need steel strand built, it uses attachments directly to the sheathing of the cable.

    Also per fire building code, make sure your using proper indoor cable.(plenum or Riser rated) this reduces toxic fumes in a cable jacket when on fire.

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