What kind of cable do I use on mine installation? What are the differences between the categories? Should I or should I not use a armored cable?
This and much more you will check it out in this video! let's go then this video is too much information and you need to check until the In the end, there are basically two types of twisted pair cable, are cables without shield also known as utp and shielded cables also known like stp and the difference between them is that in the shielded cable there is a mesh in around the cable that protects it from electromagnetic interference, we have some rules that deal with cabling, structured cabling that will not be the focus of this video, we have rules American companies there like EIA/TIA-568, here in Brazil we also have the nbr which is based on the iso that deals with this subject, nbr 14565, so at the end of this video if you want to delve even further, you you can look up these standards. good, the big most cables use this connector here called 8P8C but big most people know it as rj45 and it is a name that is used incorrectly because the rj45 standard defines the order that the wires are fitted to the connector but do not have problem, during the video when I speak rj45 I'll be talking about this little guy here is a tip for you who are self-taught, who likes to study, wants to learn a little more about computer networks I'll leave a link here in the description from the book by Gabriel Torres who is a guy specialist in the field, has already written several books, is founder of the Clube do hardware, I have this book, it's a book very complete and is helping me a lot including to assemble the script of this video.
Over the years, technology has evolved and cables have also evolved, and are divided into categories, currently the most inferior and which is recognized is the category 5E, what changes in the cable Category 5 to Category 5e basically is the speed of transmission that in Cat5 you will get only 100 Mbps because in Cat5 it only uses two pairs of threads, the white with green, the green, the white with orange and orange and from Cat5e uses the four pairs so today when we talk about Cat5 cables actually we are talking about Cat5e or at least it was meant to be and they are cables working at 100 MHz with the maximum recommended distance of use than 100 meters, it can reach a speed up to 1 Gbps but if it is even use a gigabit in 100 meters it is more interesting that you choose category 6 because the greater this distance greater will be attenuation and can also an effect called crosstalk arises that roughly speaking is the interference there between the pairs and Cat 6 is a cable that works there at 250 MHz, it's a cable more robust that it has in the middle of the pairs a separator that decreases the interference and yes improves isolation it is interesting that you use connectors own and not even used for connectorize, crimp a cable category 5e, it may even work but is not the most suitable because usually you have a few more tricks there, one passer, an aligner to perform a good crimping and with category 6 cable yes you will get 1 Gbps in 100 meters, even when I say this maximum distance is not applies directly to a cabling structured that you would need to have there the maximum of 90 meters and the rest in pet kors and with this cable you can even get 10 gigabits at approximately 30 to 55 meters but the most suitable for you use there 10 gigabits is the cable category 6a because the Cat6a he has a coating even more robust than the Cat6 both externally and internally it works 500 MHz and is indicated there for large projects, hospitals, schools, industries, what it really is an excellent cable and here I already I want to draw attention to you who have a small business or even you who are a home user or even gamer user who is a little more demanding still, you don't need more than a Cat6 that including I'll leave links here at description with great prices and various sizes so then you go there and give check it out, I use it myself here, I I have 1 Giga of internet and I use the Cat6. And continuing we arrive on Category 7 cable which is a cable that does not exist in American standards but exists in iso and even in the Brazilian standard which is a cable that works at 600 MHz and is a cable with shielding that can reach up to 10 gigabit in 100 meters and it is worth mentioning that you need special connectors also, won't you come and put one 8P8C connector on rj45 in one Category 7 cable shielded on top soon we will comment more on shielded cables so calm down there. And we also have the category 7a cable which is a cable that has double shielding and it works at 1 GHz frequency so basically what changes from 7 is this frequency and this double shielding but Cat7 and 7a are little categories disclosed and we arrive then in the category 8 which, unlike 7a, category 8 has a bandwidth which is double, 2 GHz and can reach up to 40 Gbps over 30 meters, is usually a cable used there to turn on racks of the same rank in data centers, to replace optical fiber if as necessary and is a category that is recognized by the NBR 14565 that norm I mentioned there in beginning and also by the American standard but the detail here by iso which is the another standard, it recognizes two types of Cat8 category which is Cat8.
1 and Cat8. 2 which has even greater shielding in all cables and of course also for this type of cable you need to use a specific connector and that's why I I tell you, why use it? you who is a home user use a cable above of category 6, what is the need, is well most likely you don't have it in your house a computer, a console that has a 10 gigabit or 40 gigabit network card, these days i saw it on claret channel trainings that I would even like to thank here for the Marcelo, who is the creator of this channel, is a channel facing there for cabling structured, including I got in touch with him, I will leave the link here in the description, I entered contact him to get some doubts, he was super attentive, after go to his channel that has a lot of content cool, I saw some gamers there "fearing" that I wanted because I wanted buy, beauty you can buy the Cat8 if you want it but don't have it need, have no need, won't make a miracle guys, the network cable he it won't work miracles there either game, not on your internet, just you buy a cable there that meets your needs needs and that's it, it will solve your problem and something worth mentioning here is that the colors of the cables do not influence nothing, that's the choice of the manufacturer and a blue, white, black, usually does not indicate anything if it is better or worse than the other.
And we arrived shielded cables, which are cables used there to precisely reduce the electromagnetic interference that you need to use its own connector Also, the connector must be shielded and which usually has a thread copper inside that you need to solder or attach to this shielded connector, you cannot let him loose or out because the current through the wire it needs have a way because otherwise the cable will stay as an antenna and there will be a lot more interference and if you go turn on a pet penium, that pet penium also needs to be shielded and needs be grounded why as i explained to current needs a path and then the we get to the most common doubts, I can i run a network cable along with power cord? can i spend one cable that is shielded, which prevents there that electromagnetic interference? Because in the power cable the current that passes there, it generates an electromagnetic field that causes this interference but will be that you can use the two together?
Because for you to have an idea, this interference it can cause bit loss, packet loss, and make your internet very slow. oh you you can be watching this video and thinking like "I've always used it, I've never had problems" or even when I spoke of the distance of 100 meters, "ah, I already used cable there in more than 100 meters and it worked", you can even work guys but one time or another this will be a problem, what is the distance there suitable for you to pass a cable of network and a power cord? Look, the rules avoid dealing with this point, at that value, at that distance and leaves the it is up to the manufacturers to cite this distance so we have a table there of 15 to 30 cm but nothing very proven, this distance is according to the value of voltage and value of current passing there next to the twisted pair cable but of course, with the shielded cable this distance it can be reduced but there is no way for me tell you what is the distance here suitable, so think with me, if you really can't pass this network cable away from this power cable energy, so it is ideal that you choose cables shielded and we have shielded cables yes, generally all categories not only categories 7 and 8 but we have shielded cables also in category 5e and category 6 and etc and once again, I I'm not encouraging you to pass these cables together no it's not the most indicated but if you really can't you fail to pass, it is necessary use this shielded cable as I already explained and also signal well flagged, both the network cable how much the power cord with the voltage his name because if a professional who it's not electrical is going to do something maintenance this can cause some accident and even death, another doubt very common, I can connect in any order?
Can I put the wires in any order to crimp the cable? Simple and straightforward answer, no, there is two standards, the T568A and T568B, you can use any of them and usually this one order is made to minimize that crosstalk effect which is that effect of interference because if you look at the pairs of wires there, they come twisted in different turns, if you observe on the cable you will see that a pair comes more braided than the other, this everything is to eliminate interference between them, then crimping correctly and standardized you eliminate this problem and also allows other technicians can easily carry out a maintenance on that network and another, if you opt for a standard that is T568A, not it is ideal that you mix the patterns in the your network, first that if you put a pattern on a tip and a pattern in another you turn that cable over there in a crossover, nowadays equipment as suites already do, they already identify these cables and manage to continue the network but it is not advised that you mix these two types of patterns or even to do this crossover cable. Last very common question, can i use a network cable in a external environment?
yes but there are some caveats, the cable must be appropriate, it needs to have protection from water, against direct sunlight, protection also against electrical discharges and that's where electrical discharges come in atmospheres, the famous rays, for induction, the cable must have this type of protection that has nothing to do with that shield protection that is for avoid electromagnetic interference, so this kind of cable to use in outdoor environment is a more difficult cable to find yourself in the market, that's what I say of quality cables because the we know there are a lot of cables there also that they are not a little reliable so take a good look, search for a brand that really has quality and twisted pair cables outdoors are not so also used because of limitation of 100 meters, which many sometimes it is better to use an optical fiber than a network cable, fiber cable optics that also needs to be appropriate by an external environment because the we have cables for the environment outdoor and indoor cable and another thing, if these cables really are exposed to electrical discharges is need to use an appropriate DPS for that cable that is even more hard to find in the market so so if you want something of quality, to last for years, see it's not so simple to use a cable in an environment external. Well, as you can see it was a long video, just to make his script I spent an average of two days because I I wanted to bring all the information here for you, quality information, confidence and also clear doubts many people but if there is still any If you have any doubt, just leave it here in the comments, tell me what you think too of this video, remembering that links for purchase of pet kors, cables already ready, Cat6, it's here in the description, it has 1. 5m, 2m, 5, 10m cable then give a take a look there and see which one will suit you better serve there.
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