fiber optic cables (what you NEED to know) // FREE CCNA // EP 13
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- Опубліковано 28 тра 2024
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0:00 ⏩ Intro
2:13 ⏩ Why Fiber uses light
3:02 ⏩ Why FIBER is AMAZING!!
4:33 ⏩ how Fiber Optics work
4:53 ⏩ Multimode Fiber
8:55 ⏩ Single mode Fiber
10:53 ⏩ Multimode VS Single Mode Fiber
13:35 ⏩ Fiber connectors
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#ccna #freeccna #fiberoptic - Наука та технологія
😆 “I’m about to make my family upset” famous last words
as his poor daughter stood staring at a frozen screen LOL
I love how his daugher turns around with the look of "I'm gonna kick your ass"
As a fibre installer i was saying to myself "don't you dare pull that out" and as it zoomed in on the ONT i knew it was inevitable hahaha!
@@jamest3093 Did it make you cringe😬 when he bent it like this (7:00)? 😅
Your content gave me the basic knowledge and confidence to apply for a job at an ISP. 7 months strong working at an ISP thanks to you 💯
Without any certs??
@@saulgoodmansfingerr8527 no certs. I’m going on 2 years now
I’m a datacenter engineer at the Netherlands but a beginner. Your series are really helping me! I just build a new setup on my own 😃
Data center technician from Germany. I love working in the DCs :D
Hi I'm studying to become a engineer also for this stuff with Data and Networks. My question evan if I also like this stuff, what is the best and what is the worst part of the job? How much do you work every day? Is it stressful? What are those things that you think we all should know before finnishing college for this or before getting that kind of job?
@@francek3892 it's a hungry field. keep up with everything and better yourself each day. you will be asked to do things outside your scope of work. you have to be self-sufficient.
What are the basic requirements to get as a datacenter engineer.
@@aaadiiivedious1259 it varies with DC's....but it's say learn about the basic PC/Server components and what they do....
learn basic Linux/Windows commands
and learn basic DC acronynyms and what they do for starters.
7:42 **Optical Fibers are based on Total Internal Reflection** Not Total Internal refraction.
I was just about to comment this lol, the light refracts once you pass the critical angle and it refracts through the cladding which is how we test for traffic on the fibre in the field with a traffic identifier.
Chuck i have to say watching your videos is always entertaining. I think you make a great teacher in the I.T world when it comes to explaining and show how things work. I've had teachers before just as dull as can be and it's like you can't get interested into learning due to how it's presented to you. I watch your video and the way you explain things and the personality is upbeat and fun it makes a WORLD of difference. Thank you for all the time you take out to provide and upload this content! I've definitely learned more here than i have anywhere else!
How long will this series be? Will chuck become the proffesor messer of CCNA? FIND OUT NEXT TIME ON DRAGON BALL Z!!!
And I took that personally.
Why even bother going to school just watch these videos they are beyond great. Thank you so much !
10:04 “now I get it, THATS FAR! 😁🕺🏾”
The way I needed you to keep converting the measurements 😂😅
yessss please keep doing these!! i’m learning so much i hope to get my CCNA soon idk if i can try bc i’m 16 but i’m definitely gonna be ready to get it i’m studying so much!
ps. ur the best teacher nobody teaches better than you, you explain everything very well and relate stuff to other stuff to help remember things idk ur just very good at teaching this stuff i appreciate it chuck love ya man!
@Quilla I am going for my CCNA aswell. Good luck !
@@housemashups4015 You to man!!
is CCNA still valid and supported course, i thought ccna is gone , as chuck said it in one of his videos
@@merhaiakshay9625 link please
As far as I know CCNA is the best network cert out there, maybe you think about CCIE (or something like that) which is tge cert before it which you don't actually need
me with kbps download speed watching this on 360p: *interesting*
That shows dedication and i think we should all appreciate that
totally apt
lol
You are from germany, aren't you? :D
Only 5MB/s in Sri Lanka 😒😒
Hey Chuck, I work with fiber, installing it in apartments and fusing fiber together is quite simple tbh, you only need a expensive machine, but anyone can do it.
Right? I've polished more end surfaces than I can count. Lapping paper and a puck for the connectors you're working with aren't expensive and using them isn't particularly difficult, but tedious. The epoxy fumes are the worst, though. Fusion splices are expensive, but like you said, they aren't too hard to use once you know what you're doing. When Chuck said he couldn't terminate fiber, I was like, "Really? Is it that difficult for people?"
@@canwenot573 Fujikura for the win! Not a tech anymore but yeah, it's quite easy except when it's freezing, raining and you're 7m high on an inclined ladder with a harness , strapped to a pole. Been there, done that.
@@semgas Especially when the cable is barely within reach and you're having to fumble around, hoping you don't drop your tools!
I've worked with a few butchers in my time that would make your anyone can do it statement false :P
I too work with Fiber. This statement is true as long as you are splicing but you always have "quick connectors", given where I am we typically use SC/APC connectors and that is very easy and cheap to do. Your biggest expense would be the fiber itself.
What a cool dad and a cool dude! I cannot tell you just how hyped I was learning about what fiber optic cables actually are, simply bouncing off the incredible energy of this video! Awesome, awesome video, and so simple that even I got it
Been binging your channel. It's the most useful set of tech info I've seen in a long time, and by far the most engagingly presented.
I don't make a living in IT per se, but in an adjacent field that has me interacting with IT people a lot and using several of the same tools they do. Just knowing what they're talking about when they start slinging acronyms helps tremendously.
And now I really am thinking about pursuing a few certifications just because they're interesting.
Kudos!
Awesome video Chuck!!! You made so many points that I made in my Fiber Optic video as well!! Glad you're continuing this Free CCNA Course!!!!!
Your content has made me enthousiastic about stuff in a time i couldn't get excited about anything anymore. It changed me from not wanting to get out of bed anymore to having the motivation to work towards a better future.
So thank you. Truly ♥️
I’m not in IT, I’m an HGV mechanic but I find this stuff fascinating, and you seem to be very passionate about what you do. I find you very interesting and humorous and you have a natural ability to teach this stuff. Great job 👌
I like you excitement when explaining these things. I understand that you had to explain these things in a simple way.
One comment to your statements around Multimode core typically being made from plastic: That is rather rare and only in use for very short connections. Mainly for things like audio transmissions or other special applications. In standard networking fiber cables you will only find glass cores.
Also, the price difference between Single Mode and Multi Mode in the cables themselves is very small, but the transceivers (most commonly SFPs) still have a big difference in price from most vendors.
What I would have loved to hear mentioned would be a "how to handle fibers", because I have seen so many problems with people mishandling fibers. Macrobends and microbends because of people not taking care of minimum bend radius, and the way you kept touching the connectors you will not be happy about the attenuation. You are not supposed to touch the end faces of fiber connectors, and you should clean them correctly. If you have ever seen a connector endface with a microscope after having touched it just once you will know what I am talking about. :-)
Great content!
Been installing/testing/splicing Fiber for 20yrs in the oilfield.
ST is used on most test boxes for subsea structures, but LC is used in the cabinets in the Platform.
Working for AWS solving issues with u in the background, all thanks to ur CCNA videos motivating me 3 years ago. 10 certs a bachelors and 2 jobs later.... Thank you
Network Chuck. My teacher from tech school told me about you. She once said "Victor, don't settle for geek squad, or genius, you're meant to start off as a Junior". I took networking as a career path and landed a great Junior network engineer job. I've been watching your videos lately to get up to speed with things. Your videos these past few days have been a great help. Thank you.
FINALLY! So excited for the continuation of this series!
Oh, I wish you posted this video 2 weeks ago when I was troubleshooting a fiber issue at a customer. I found the solution tho!
I still watched and enjoyed every second of your video! Keep up the amazing work!
Hey NetworkChuck, I've been avidly watching your CCNA playlist as I am preparing for a job interview to become a trainee Telcoms Network Engineer as a change of career. I've played with networking at home on a trial and error basis and using youtube and google to teach myself stuff over the years, however my hobby and interest has developed into a real desire to pursue this as a career, your videos are definetly helping with my interview prep for the training position - if I get it I'll be doing SCADA, CCNA and eventually CCNP. Hope I get the job!
I just wanted to thank you! I seen your help desk video & landed my first interview. I’ve been teaching myself Microsoft Azure for about 2 months now & I look forward to expanding.
Awesome video @NetworkChuck. Thanks man. I've been working with fiber a few years but it's always nice to see new takes on this material. Good job!
For a long time I had trouble remembering what connector was named what as you (in most cases) have the three connectors you mentioned that have a two-letter abbreviation and they are kind of similar. Luckily one of my colleagues told me this nice way to tell them appart
ST = 'stick and twist' as you turn the connector to lock it like a small BNC
SC = 'stick and click' as it clicks in like an RJ45 but without the tap
LC = 'little click' beckause it's the smallest and it goes click.
Hope this helps someone at some point. Sure did for me.
Just wanted to say that these are great videos, and you have always a great vibe.
I learn so much more useful things from you than my school. You are the reason why I started learning hacking and this stuff.
Keep up the good work my dude
Hey! Thank you for your channel!!! In less than 24 hours your channel has become one of my top 5 channels because it’s just freaking awesome!
I am a high school computer teacher in an inner city high school and your explanations are AWESOME! The way you simplify complex concepts is exceptional! Thank-you!
“ here in my garage I have fiber internet “ but I’m more proud of all the books I read.
Do you know what I love more than *fast internet* ?
Knowledge
@@matroqueta6825 Even faster internet
@@matroqueta6825 Holy shit that gave me the best chuckle I've had in awhile. Knollllledge.
Thanks man 🍻 i really need this kinda information on fiber, i hope you make another part on it about olt, onu, epon, gpon stuff. I used to be confused between single & multi mode fiber now it's cleared 👌
I am glad you brought up the duplex comment , but everyone neglects to ever mention about having to flip fibers to avoid having a send signal on both sides and link not coming up.
All CCNA material skips over this and this is crucial for everyone to know you can’t always just “plug it in” and get link
This was the best video I've seen on fiber cables, which otherwise have appeared a little intimidating to me. I had some trouble understanding the idea of the "transceiver" (the SFP) from my Net+ textbook , but seeing it used in person made it completely obvious that it's just a type of converter. Additionally, I appreciate how stoked this guy is on Networking.. it makes learning more fun! Thanks.
waited for this video so long!You can make anything cool!
just passed my comptia a+ moving onto ccna . thanks for all the content which is helping me along the way.
Great job!
I love when you use your kids to explain because as a momma of 3 i feel the explanation in my core and it burns into my brain!
- Distance for multimode is often limited by dispersion rather than attenuation.
- If you get into a situation where you need some attenuation (LR optics on a short run) wrapping the jumper around a pencil then taping it down works in a pinch.
- Fun memory aid for remembering the connector types: ST - Stick and Twist. SC - Stick and Click. LC - Little Click
Great content as always. Fiber gets complex fast.
Nice aid. Fiber technician here, I laughed so hard because of the little click. 😂
I use Stab and Twist and Stab and Click to remember.
Nice simple explanation (as usual) of most things about fiber cables. Thanks!
But waiting for Ep. 2 of the same topic and talking about SFPs: simplex and duplex cables and connectors; pairs of simplex SFPs and how to buy and install them (1310nm Tx and 1550 Rx on one module and vice versa on another); does my Cisco switch support any SFP module from Aliexpress; will my Cisco switch with Cisco SFP talk to Fortinet firewall and Fortinet SFP on another side; and so on.
Fiber is a really interesting topic to talk about. As for me, I start reading about it every time I have to touch it.
This is exactly what I wanted...
You must have it in the street and also through your house cables...
I have spliced fiber numerous times and can attest that it can be a huge pain in the butt! Great video, Chuck!
Adavnced Networking Course in College:
Chapter 1 -
12 Minute Video on Fiber Optics ---> Video feels like it was 30 minutes long
*In my Recommended Bar After Watching The First Video* NetworkChuck's Video on Fiber Optics (19mins) -----> Video feels like it was 2 minutes long.
Knowledge Obtained?
12 Min Video: 6/10
Chuck's Video: 1600/10
Thank you my man, for making my learning experience not feel like my skin is burning off from boredom.
Great content as always Chuck! Since this ties into the internet, would you mind doing a video about how the ISP and other services are able to bascially *generate* the internet that's sent to your home and corporations etc? The 30,000 ft view instead of the DC/home view. I'm an engineer myself and I have yet to find material that explains it concisely and think you would crush it!
did u find?
when it's going to be your Linux class because you are the best teacher sir I am learning from you thank you
Very dope he is!
I always enjoy your content. You explain things in ways people can understand and having an upbeat personality makes it enjoyable! I wish when I was going to school, that you would of been the professor. The professor I had spoke like an audio book and the device was running low on power! Lol Thank you for all that you do!
A few things to point out.
1. Yes you can fix the fiber (unicam)
2. Bend insensitive fiber
3. Clean the fiber when you're unplugging it.
4. Nice video.
Ready to get your CCNA? CCNP? Use the BEST tools: bit.ly/bosonexsimccna (Boson ExSim) (affiliate)
Watch the whole course: bit.ly/nc-ccna
Go deeper: ntck.co/ncccna
🔥🔥Join the NetworkChuck Academy!: ntck.co/NCAcademy
💯💯TEST your skills, see what you got: ntck.co/ccnaep13
(be the first to complete the quiz and get some FREE coffee)
**Sponsored by Boson Software
It's time to get your CCNA!
---------------------------------------------------
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►CCNA Courseware: bit.ly/boson_cw (Boson) (Affiliate)
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►CCNA Practice Exam: bit.ly/bosonexsimccna (Boson ExSim) (affiliate)
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SUPPORT NETWORKCHUCK
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0:00 ⏩ Intro
2:13 ⏩ Why Fiber uses light
3:02 ⏩ Why FIBER is AMAZING!!
4:33 ⏩ how Fiber Optics work
4:53 ⏩ Multimode Fiber
8:55 ⏩ Single mode Fiber
10:53 ⏩ Multimode VS Single Mode Fiber
13:35 ⏩ Fiber connectors
That was amazing 👌👌👌👌👌👌. Fibre is just awesome.
Can you please make video on "bug bounty for beginners".
When I was in college they taught us how to polish fiber using very fine grade sandpaper. Talk about a waste of time. I have never done that in the real world. That was over 20 years ago.
It tis Total Internal Reflection Not Refraction
If there's an audio book version with you as the narrator, I might actually get through this stuff
Hello everybody my name is conducting wire
Work en everything was crazy and missed out on your video. Now i remember why i liked to watch it, even if you show something i already know. Always some fine detail i learn from. Thank you.
Sir, Amazing thumbnail,
I think you are Peter McKinnon of photo editing also...
I appreciate that!
Chuck: NEVER BEND A FIBER CABLE
Also Chuck: *bending the cable aggressively*
hahhahahhhahahhahah
You can vend fiber it dose have a breaking point.
@@ralphmorales5082 yea ik
Snazzy Labs did made a video on that.
I worked as a fiber splicer, and working with this type of technology is awesome!
Man your style of teaching is the best I have ever seen. Thanks.
Why does everyone in the US have an unfinished garage? :D
Probably because everyone is in such a hurry to get in their house and don't really care about what the garage looks like
@@twinversbr Like… for the most part, it’s just a room to keep your car protected.
Emi: electromagnetic interference.
@Fravio Chuck said loss of data so it is interference.
awesome video man. I started working on the GIS side of fiber 5 months ago. This helped me understand more of what our team places in the field!
fun story, before i got into IT i bought a book called networking visually and learned all the connectors (LC was not out then). when i built my home lab during my first support job, i bought Cisco Catalyst 5505 switch with the 6 port Gbic module and bought cheap fiber cables on ebay and fiber cards for my PCs :)
2:36 Actually, the speed of light is irrelevant when comparing it to copper/cable Internet. Waves of electric signals (voltages/current) also travel at the speed of light.
The electromagnetic wave is Electrons moving (close to the speed of light as Fermions are pretty light), but the material slows it down considerably more in comparison to light. So... the speed of light is relevant, as are the properties of the material transmiting it. And the fact that Photons interact with mediums much less than Electrons.
en.wikipedia.org/wiki/Speed_of_electricity
@@martinvuyk5326 Would hurt like hell to theoretically touch a cable superconducted with photons. I don't even want to think about it. The sun inside a little wire...
Sitting watching this on 1.1gpbs internet
I'm watching on 3Gbps up and 3Gbps down fibre
I work for ISP...the only issue with Fiber is damaged patch cord at the customer's house FTTH ... we use single mode everywhere even on the local network.. you've done so many research... nice video, simple explanations and everything is there
Simply put; a warp speed tutorial. Most excellent. I have used fibre optics for years in lighting styrene models along with leds etc. I have now att fibre internet in my home . Mostly wireless. Removing pot wire and wiring with cat5e(got it free) for prototyping boards etc.
When I finished my physics exam, I thought I will never have to hear about Refraction of light again, I thought wrong
LOL!! Well my (young?) friend, I loved the "never thought I'd hear refraction again" comment. Usually, as soon as one says "never" that word bites one in the butt. I usually say, "I won't say never, but the 'smart money' in Vegas won't cover that bet" 😱
I just subscribed to this channel because I happened to see Chuck's video on Raspberry Pi. Then found this video (AT&T has kept bugging me to upgrade to fiber) to be semi-informed. I'll do it eventually but hate waiting for installer. AT&T stood me up (never showed up) 3 different days when they rolled out DSL.
years ago.
Chuck appears to be a very good teacher from what I've seen so far, mainly because of his enthusiasm. This old dog might learn a new trick.
Multimode - uses LED lights
Single-Mode - uses lasers
Nope, a mode has nothing ro do with LEDs or Lasers, rather with how many "beams" of Light you have inside a cable Multimode can also use Lasers
@@Felix-ve9hs is right. Mark Arca is wrong
In addition to the above two replies ... Lasers in switches, routers, media converters and transceivers *are* LEDs (eg. laser diodes).
The difference between MMF and SMF are mainly the wavelengths. MMF (OM#) are usually 850nm, where SMF (OS#) are higher.
In addition, OM2 fiber can usually be bent sharper than OS2.
I will be passing this video to our new Technicians. I have been doing Telecommunications for 24years now. Some of the information is more basic and general. But working in the data center capital of the world. I have stories to tell. But I started a Tech right out of high school. When I started most customers fiber circuits were 155Mbs (OC3), and 622Mbs (OC12). Now I install 10G, 100G, and 400G. The need for bandwidth has grown in the 24years. Also the more commonly use BIF (Bend Insensitive Fibers) reduces the micro bends.
Sorry to ramble but good video and I know I know a lot of the technical spec.
Also never look in the end of a fiber is a laser and will burn your eyes. Always use a light meter to measure the db levels.
NetworkChuck is left handed left handed salute 3x times.
Wow imagine living with out internet
Go to North Korea lol
Me *tear* lives in the us all I have is mobile data not even 5g just 4g and 3 bars of signal at most not even at&t not even TMobile but metro
@PizzaBoss 🤣
@PizzaBoss wow smart ass
Learning from Boson is awesome, but the way you teaches us we ❤ to learn from you. 😇
I know im late to the video but i did want to say a little on making your own fiber cables. Yes, splicing fiber requires a specialized fusing machine and its something the average guy wont do. However, its very possible to put terminal ends on fiber. The kits are usually under a 100 dollars and once you get the hang of it you can make up a termination in about 5 minutes. Its a bit of a learning curve but its a alternative to buying all premade cables.
i feel like chuck is the perfect teacher for someone that loses interest fast (I lose interest fast)- the constant barrage of visuals, analogies, and self-produced sound effects really have a way of engaging the viewer... lmaooo
I got a hundred on your quiz. You are a great teacher. I understand stuff now I never thought I would. Thanks NC. Oh I also ordered a bag of that Mexican coffee. Can't wait to get it.
You would be surprised how easy it is to put new ends on those fibers with the right tools. You can be shown once or twice how to do it and probably fix it yourself. Although if you don’t have the tools, it’s probably cheaper just to buy a new patch cable.
Also, I realize this video is somewhat old, but SFP+ transceivers come in BiDi flavors that do not require two fibers for full duplex connection. Super cool stuff. 🙂
haven’t watched your vids in a while and came to this, love the intro and the transition into your title scene
i have watched a lot and i mean A LOT of ccna videos you are the only one who explain things that are actually relevant A LOT of thanx all the way from Kuwait
I splice and terminate fiber for a living, it’s nice watching the excitement people get over it. Makes me feel like I’m doing something cool lol
You’re videos are great!! Thank you so much for sharing your knowledge.
Thank you so much for your videos. Man, they keep me hyped and motivated to study and touch up on subjects. Especially after the effects Covid-19 has had on my attention span and memory!
Superb! I started working with fiber for the first time in the spring. I understand what I was doing better now.
Love this series Chuck! Thanks so much for it!
So excited, that i follow your series meticulously, seriously thinking about the CCNA CERTIFICATION
It's the refreshing "I turned the Internet off" that helps me get through the rest of the video. Thanks Chuck.
You always have such incredible and informative videos!!! Thank you so much!!!
On my local island, all the small communities got together and asked the big telecom corporation to build fiber network over all the island. It was feasible because the communities got almost everyone to jump on the train. And you had to bind a contract with a perticular corporation, for five years if i remember correctly.
So the internet infrastructure here is really good.
This happened about 10years ago.
Your channel and this video specifically are just the heaven of nerds
Dude, I loved your video and the way you explain things. I just got a job at Cisco and loving everything about it. Please keep making videos. YOU ROCK!!!!
Got my AT&T fiber a few months back. Love it. ❤
Great Video about fiber !
Something that is hard to find.
Great job chuck like always!
Great video man, trying to get into fiber, genuinely sat through the whole video and watched it.
Loved the video NetworkChuck! Also worth pointing out, the same way there is Cat5e/Cat6 that categories the bandwidth potential of Ethernet cables. Fiber Optics have a similar convention denoted my OM(x). Example, how Chuck has the aqua blue cable, that lets you know that it is an OM3, capable of 10GB up to 300 meters. Hope that helps :)
Thanks Chuck, amazing content as always.
I love your way of explaining dude ❤
Keep going 👌🏻
This channel is amazing! Such great content. I am learning so much!
Such an awesome content! Keep rocking bro!
You make great vids man. Really enjoyed it.
I have 10 gig fiber for my home lab connected to MikroTik switches. It's great connecting the workgroup switches to the core switch. Also, connecting to other switches several feet away. Fiber cable is not as fragile you may think it is. Don't bend them any less than 90 degrees radius and you'll be ok. All of my fiber cable is OM4 even though I am only using 10 gig because violet color cable looks cool. :)
Great video. You're an excellent instructor. I'll definitely be watching more of your content. Subbed
Fellow Network Engineer here, great video!
Never look straight with your eyes into a fiber optic cable.
great video!
Good video, I just got gigabit fiber to the premises 5 months ago and it has been amazing compared to the previous DSL 9 mbps down and 0.81 mbps up that I had for a decade. I don't want to use any other internet medium besides fiber again.
I just had my first day in the field as a fiber splicer, fun work!
Yeah until you're out at 3am in the middle of a hurricane trying to splice to restore a major outage 😀
I am a certified Fibre to the Home (FTTH) Technician. Great job with the explanation!
I graduated college IT department , but i learned more from this guy than college , great videos , keep going
Never miss a single video, Sifu