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The How-To Geek Guide to Making Your Own Custom Ethernet Cables

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Ever set up a router, only to find out you need two short Ethernet cables, and you’ve only got one long one? With a few tools and a little DIY geekery, you can start making all your own network cables.

While buying bulk cable might not be for everybody, the ability to repair and split long cables is an essential geek skill. Keep reading to see the tools and techniques you’ll need to know to customize the cables for your home network.

Tools and Materials

DSC_0227 Wire Cutters or Wire Strippers: For the self-explanatory task of cutting and stripping wires. They ordinarily retail for anywhere around $5 to $25 and can be found at any tool supply store or online. 

Wire Cutters (Amazon)

DSC_0228 RJ45 Data Plugs: These can be found at many computer stores, Radioshack, or some hardware or home supply stores in the electrical/wiring section. Some are labeled specifically Cat 6 or Cat 5e—buy specific ones if your network needs one or the other, or if you have a preference.  (Author’s Note: I can’t seem to find any difference between one plug or another.)  

Data Plugs 25 Pack (Amazon)

DSC_0229 RJ45 Cable Crimping Tool: In order to make your cable’s data plug a permanent part of your new cable, you’ll need a set of these. These retail for varying prices, averaging around $10 to $15, depending on the brand or store you buy from. 

RJ45 Crimping Tool (Amazon)

DSC_0232 An Ordinary Cat5, Cat5e, or Cat6 cable: Assuming you’re going to turn one long cable into two (or three or four…) you can start with any working ethernet cable you have lying around. You can swap out existing data plugs this way, if you have long, expensive cables with broken clips.

Author’s Note: All links are provided for the convenience of the reader. This isn’t an endorsement of the linked brands of plugs, cutters, or crimpers. They are merely an example of the correct tools.

 

Other Tools and Materials

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This toolkit was available at common home supply store (like Home Depot or Lowes) and contained many of the tools used in this how to, including the crimper and a set of RJ45 data plugs. If you think you’ll get a lot of use out of the set, you might save a few dollars buying the bundle, and getting the whole set of tools, along with the helpful carrying case.

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Networking cable can also be bought in bulk, in huge spools of hundreds or thousands of feet. A standard cable retails in an office supply store for around $20 per 6ft, and 1000 ft of Cat 5e cable costs about $80. With that price difference, you can network all your neighbors computers with bulk cable for less than the cost of retail cables for a half dozen computers inside your own home.

While very few of us will ever use 1000ft of networking cable, if you ever need excessively long cables in odd lengths, this is going to be one of your best bets.

 

Make Your Custom Networking Cable

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Measure your cable to the length you desire, then add an inch or two, as you’ll end up losing a bit of cable during the process. The carpenter’s motto “measure twice, cut once” is very apt in this case, so make sure your cable is the correct length before cutting.

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Your original cable is now in two pieces, Now you have to remove the shielding from the wiring inside the cable.

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Cut away the outside shielding with a hobby knife, a wirestripping tool like the one shown above, or your wire cutters. Leave an inch to an inch and a half of wire if you’re doing this for the first time, as the wires can be frustrating to work with.

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Untwist the wires from each other so you can work with them. Do not strip them. If there is any insulation inside your cable, do not pull it out. You can, however, cut away the excess from the end of your cable.

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Orient the wires to this specific order. This can be easier for first-timers to do with longer wires, but you’ll shortly be trimming the excess away. Remember that this order is critical. If your cable has different colors (rare, except with very old cables), you’ll have to copy the order of the clip on the other end. This order, however, is the correct wiring for most ethernet cables.

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Once your wires are in the correct order, trim the excess away. Your goal is to leave slightly less wire than will fit inside the RJ45 clip.

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Bending the wires to stiffen them up can be helpful to keeping them in the right place. It can be frustrating to get the wires to stay in place and line up correctly with the pins, but it is far easier to do this than try and feed in the wires one at a time.

Hold the wires in place with your fingers and insert them all at once into the data plug, as shown, with the clip facing downward. Once they are seated in the pins, check to make sure none of them have changed position. If you go on to the next step and crimp your data plug without checking your wires, you may have to cut if off and do it again.

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Once you’re sure your cable is wired correctly, with all wires seated to the appropriate pins, place your data plug into your crimping tool and give it a firm squeeze. If you have strong hands, don’t get overzealous and crush your data plug—it is only made of plastic, after all.

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And there you have it, a complete ethernet cable, made from a segment of an existing cable. Repeat the steps to add as many data plugs and make as many cables as you need, in any length you need.

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Cables can be as long (or as short!) as you can make them, and will work as well as any ordinary retail ethernet cable. Enjoy your new geek skill, and have fun wiring your network with your own custom-made cables.

Eric Z Goodnight is an Illustrator and Graphics Geek who hopes to make Photoshop more accessible to How-To Geek readers. When he’s not headbanging to heavy metal or geeking out over manga, he’s often off screen printing T-Shirts.

  • Published 04/25/11

Comments (64)

  1. George

    No, no, no!
    Cables cannot be as long as you want them, max 80 meter or youll need a bridge to extend the max meters.

  2. Topper

    The “shortest” calbe on last picture a totaly wrong – it’s mirrored.

  3. SMurdock

    As someone who makes, and has made, lots of cables, I would add that after making the cable you test it with a cable tester. A basic tester is all you really need and I had seen directions on the web to make one. Basic testers test continuity and test that your wires are in the correct order.
    Obviously you can test by plugging it in to a computer and such but most of the time a basic tester saves you time and is handy when troubleshooting.

  4. Eric Z Goodnight

    @SMurdock: Nice idea. For the reference of readers, here’s a link to an RJ45 cable tester:

    http://www.amazon.com/Paladin-Tools-70025-Network-Tester/dp/B000KMHL8M

  5. ridefst

    @Topper
    It’s not “wrong” exactly, but should be explained.
    That’s a crossover cable, which can be used to join two computers together without needing a hub or switch.
    It’s not quite a direct mirror either, here’s some wiring specs and more info: http://en.wikipedia.org/wiki/Ethernet_crossover_cable

  6. Kashyap

    I hope the above mentioned tips are really great & useful for those peoples who are the learner of Networking… At after all it’s a normal job……

  7. John

    I prefer this tester myself. It’ll work for phone setups and BNC too. I would also recommend a punch down tool too.

    Star Tech’s Tester: http://us.startech.com/product/REMOTETEST-Remote-Cable-Tester-for-RJ45-RJ11-USB-and-BNC

  8. ROCKYCATT

    TOPPER CAN YOU EXPAND ON THE MIRRORED REMARK ? IM REAL GREEN

  9. Geeman

    Yep, shortie cable is wrong, that is a crossover cable–colors are backwards on the left plug, dont make that mistake on a shortie cause you have to start completely over! :)

  10. ROCKYCATT

    sorry bout the caps error

  11. Driscoma

    There is a minimum cable length.
    http://en.wikipedia.org/wiki/Ethernet_physical_layer#Ethernet_minimum_cable_lengths
    This is only one of many references to a minimum cable length. Like SMurdock stated use a tester!

    I have never had a CAT5 or 6 cable operate correctly at 6″ or less.

  12. Driscoma

    ROCKYCATT:
    When creating a crossover cable you do not mirror the first end you usually just swap the orange and green cables. Ex:

    End 1: WOrange-Orange-WGreen-Blue-WBlue-Green-WBrown-Brown
    End 2: Wgreen-Green-WOrange-Blue-WBlue-Orange-WBrown-Brown

    Example here: http://en.wikipedia.org/wiki/Ethernet_crossover_cable

  13. Timoy

    I used to make these myself, but got completely fed up with the hassle and aggravation of it all. I just buy them at showmecables.com–a fraction of the cost elsewhere, and you know they were done professionally and work correctly!

  14. Gaby

    I like the short cable… excellent to connect 2 laptops (back to back), of course with the correct configuration of the wires. :D

  15. zepe

    FYI:

    1 – Back in the day I used to have my people use the connectors shown in the link above. These connectors have a fanning strip and you are far less likely to make a bad cable if you’re not very experienced.

    2 – If you’re going to be making your own cables as a matter of practice don’t skimp on your tools or materials to save a few dollars, it’ just not worth it.

    3 – There really is no difference between Cat 5 and 6 connectors, the difference is in the cables. Cat 6 has better noise immunity and can handle faster throughput.

    4 – Ditto on the last photo.

  16. DJGray

    Driscoma, I use 3″ to 3.5″ in cables on my patch panel and have never had a problem with them.

    This was a great article for those who have never made cables. Ethernet cabling is horribly expensive if you purchase pre-made cables. Once you know how to make your own, it is the only way to go. I have not purchased a pre-made cable for probably 15+ years.

  17. MOL

    @ridefest – That actually that is wrong for a crossover (unless he has some custom specs cable pinout for something he is developing)

    Cross-Over Spec as per the “Standard”:
    http://www.archonmagnus.com/computing/elec/diagrams/crossOverCableDiagram2.jpg

    Anyway I think the photo was just to show you can make them as short as you want.

    +1 to George about there being a maximum length. I’ve seen cable go over 150 meters, but I wouldn’t dare install / stand over anything greater than 100 meters in a corporate environment.

  18. zydecoman

    Use the EZ-rj45 connectors – they really are a whole lot easier to work with.

    http://www.amazon.com/Platinum-Tools-EZ-RJ45-CAT5-Connectors/dp/B002PI4EM0/ref=sr_1_2?ie=UTF8&qid=1303741499&sr=8-2

    They are available from lots of vendors.

  19. Eric Z Goodnight

    @zydecoman: Looks good! Although it seems to require a specific crimping tool.

  20. Hatryst

    Nice how-to. But LOL at the last photo :D
    Yeah, go up and see it !!

  21. Adam

    I love Geeks’ how-to articles. Some people, though, love to hate them and post their negativity here. I am not a novice, but I was one day, and still remember struggling with cables, routers, switches, IP addresses, etc. In those days there were very few sites to help you.
    Even if you are not a novice, there is always something to learn from these tips. Maybe not from this one, but from others. Enjoy the tips and if you have nothing positive to say, keep your opinion to yourself, and do not discourage others from learning. Peace.

  22. Thomas Clover

    I use an old comb to help me straighten out the wires to put in the data plug or clip. Works like a champ and saves me a little time. Also, a shielded twisted cable makes a great telephone run even though you only need two of the wires. You don’t have worry nearly as much about distance when running an analog signal. I’ve run them over 200 fee without a hitch. One cable in my house used to run two telephone lines, a fax line, and an intercom between the home office and the front of the house.

  23. James

    I used to think I could put any order to the color, as long as I matched it on the other end. It turns out that the pairs are twisted together to reduce noise(?), and that each pair has a different twist ratio. So the actual color pairs that you use are important.
    So the color pair orders were not chosen arbitrarily, and you should follow them as described above.

  24. Tim_UK

    it’s well worth getting a little lan cable tester from someone in china – only a few pounds via ebay and will save you a lot of messing about if you have an incorrect wire somewhere.

  25. Richard

    Not a bad artical, wish i had this a few years back when i was starting out

  26. RossMcD

    If you buy a big reel of cable make sure that you get the right type.
    - If you are running structured cables (to wall sockets, etc) and the cable is going to stay put, then use solid core. (Normally connected to keystones in the wall sockets with a punch down (a.k.a. “Krone”) tool.
    - If you are making a load of patch cables then use stranded core cable – it is designed to remain flexible.

    I confess that I buy patch leads normally now (at what I think are reasonable prices) and only make up cable ends if I have to poke the cable through a small hole where I can’t get away with drilling a hole big enough to put the whole RJ45 connector through.

    One last reminder – if you use rubber boots to protect and / or to colour-code the RJ45 plugs don’t forget to put them on the cable BEFORE crimping on the terminals! (Been there and had to cut off and remake the connection.)

  27. Darren

    I used a cat5e cable and still using it to connect to neighbour, I have 4 security cameras on my system, and my neighbour connects to monitor the security systemas well. This is how i split the pairs of the cable, orange/white and green white, used for the network connection to my hub, the Blue/white is used for a camera, and the brown white is the power for the camera, Distance to my neighbour is 170 meters thats 560.99 feet, and it works like a dream on one cable, network, camera & camera power, never fear , test, test, test

  28. martik-scorp

    its not that geeky… but still good howto

  29. Anon

    The maximum length (maximum certifiable length) for CAT 5 – 5e – 6 patch or crossover cables is 328 feet (100 meters). Beyond that, you run the risk of signal loss and other complications. “Like Gaming”

    Thanks for the How-To, I had a general idea concept how to create patch cables but I what I did not know was, how the wire ordering went. I use all cat6 cables. Router > 200ft patch cable running through walls > hub > 3ft cat6 patch cable > main pc.

  30. Jon

    I splurged and got the Platinum Tools EZ-RJPRO HD Crimp Tool .. it was about $70 on Amazon .. But worth every penny .. It is perfect and seems like it will last a lifetime

  31. Jon

    If you always make the same does it really matter if you use T568A or T568B ?

  32. pd

    @Timoy – thanks for the link, the DIY is handy should I ever need to make a lot of cables, but I’d rather just buy them and your source looks like a good one!

  33. Norbert Rehaut

    Great article! What I don’t understand is what is meant by a crossover cable?

  34. gilteon

    My current favorite method: inserts. Basically, the connector has a little plastic insert with holes to hold all the wires in the correct position before you insert them into the connector. Way easir to not make mistakes with. http://www.monoprice.com/products/product.asp?c_id=105&cp_id=10513&cs_id=1051305&p_id=7266&seq=1&format=2

  35. Rick S

    Seems like it’s always 2:am when I need a cable and the store is an hours drive away. Yep I think it’s time to start making my own. I bet there are a lot of other people out there thinking the same thing.

    I like the way this article was done with pictures so you can’t make a mistake. What was left out was filled in by the comments. I would think that’s the idea of these articles. You learn a lot better when other people get your attention by voicing their pros and cons. Good work.

  36. Darren

    Reply to Norbert Rehaut

    Look carefully at this link. A crossover cable, allows you to connect 2 computers together without buying a hub or switch. One side is wired as standard … note the orange/white and orange (transmit) on one end and the white green and green (Recieve), Now on the other end of the cable this is reversed …… crossing over …… see this link and look at the images….

    Hope this helps

    http://en.wikipedia.org/wiki/Ethernet_crossover_cable

  37. Snert

    This is a decent DIY for newbies, pros and anybody between.
    I spent my military career in electronic repair (27F) and repaired many, many different types of cables.
    Good tools + knowhow = stuff that work.

  38. Adam

    Just as a note: it is not required to have the wires follow the above mentioned colour pattern…as long as the end match the sequence of the colours doesnt matter. IE. all 4 solids and then all 4 stripes, so long as both ends are the same pattern you choose.

  39. Matt

    To clarify the above comments. The very last super short cable is actually a rolled or rollover cable. Sometimes used to connect to equipment such a routers/switches console port from a PC or Laptop.

  40. Jim

    Maybe the short cable was done quickly to show an example how short you can make it??

  41. Roddy

    The crossover thing is simply, one end method A, the other end method B. A standard ethernet cable can be either A or B, just do the same on each end. Its not rocket science, its 8 little wires.

  42. Pejeno

    “Topper
    The “shortest” calbe on last picture a totaly wrong – it’s mirrored.”

    Topper is right about that. There are only two valid wiring configurations when making an ethernet cable: T568A and T568B. You can choose either of those two to punch both sides of your cable, or punch one side with A and the other side with B to make a crossover Cable. The mirrored cable shown there is useless.

    Wikipedia links:
    RJ-45
    http://en.wikipedia.org/wiki/RJ-45

    Crossover cable:
    http://en.wikipedia.org/wiki/Crossover_cable

  43. Ron

    Matt is correct about the small cable being a roll-over cable. Cisco uses this configuration to connect a computers serial port to the devices console port.

    Also someone talked about solid and stranded core cables. The 8 postion-8 contact (RJ45) plug is not generally universal. The insulation displacement pins of the contacts are configured differently for the two types but some manufacturers offer a universal modular plug.

    And to comment on Adams post: the reason for the maximum length requirement is that each pair of conductors (white and color combo) have a different amount of twists per inch to reduce cross-talk. When a structured cabling system is certified one of the metrics measured it called delay skew. Since the wires have different amount of twists at maximum length, there is a significant difference in length between two pairs. Delay skew measures the difference in time that two simultaneous signals are received at the far end. To counter act electrical noise Ethernet uses differental signaling which mean the signal one the white goes high, the signal on the colored wire goes low an equal amount. If you mix wires the signals will reach the distant end at different times and result in errors and retransmitted frames. That’s why we have standards. ;)

  44. Bryan Stinchfield

    @ridefst – it is not a crossover cable, crossover cables only have 2 wires swapped otherwise the colors are the same.

    The short cable isn’t mirrored, they just put the connector of it on upside down. The connector on the other side of that tiny cable should be upside down.

    As a computer tech I make cables all the time, as someone who does what they have to do to get the job done, I’ll tell you straight up that the order doesn’t matter as long as it is pin for pin – pin 1 to pin 1, 2 to 2, etc. If you’re doing a professional installation with very long wires, yes, do it to spec but for the average home user it doesn’t matter a lick as long as pin one goes to pin one and two to two and so on. An ethernet cables only uses 4 wires to talk back and forth – did you know you can use one cable for two connections if you really need to? Done it several times when running a new wire through multiple floors wasn’t an option, also made a cable only using 4 wires once when a pre-done installation (and no option of replacing the wire) was botched and one of the wires in the cable was broken.

    Straight up network techs will tell you and swear that you MUST use all 8 wires and they MUST be in the right order … you only need 4 wires for the cable to work properly. You only need pins 4,5,7,8 to be in good working order for the cable to work and on top of that you can use ANY of the wires in the cable to make it work!

    Why does the article recommend wire strippers to cut the cable when nearly ALL ethernet cable crimps have a cutter built in??

    Can’t wait for the comments on this one … go test for yourself, my experiences are from real work in the field and they work!

  45. Matt

    To further on Bryan Stichfield’s statement…. In all truth, the cable color order isn’t important. The standards are however in place for the reason of which standards are used. As a network technician looking at a series of cables its easy to identify a cable as a certain type (also denoting its use ie. connecting to like devices through uplink ports) in a quick manner. This making replacing, repairing, or making a new cable take less time as the standards are in place to make it easily recognizable. Remember that the color on a PS/2 keyboard or mouse isn’t necessary, but digging through a rats nest of cables not one of us stops to question whether the green PS/2 plug is a mouse or not! Again, that is the reason for standards!

  46. TG2

    First at @ron & @adam … “in pairs” is the concept here. keep the pairs proper .. Pins 1 & 2 should be one pair (ie. blue solid/ blue stripe) pins 3 & 6 should be another pair (say brown/brown stripe) … in the home, or as a quick cheap non-important cable, sure, you don’t need to do orange/green for 1-2/3-6 but I would temper that with in the real world, its just as easy to do it right the *first* time and *every* time so that if you give your cable to someone, they aren’t questioning nor would any one else. At no time should you split pairs.. … ie 1 & 2 .. Orange Stripe / Blue Solid … 1 & 2 are the transmit signal’s + & – . You have a spec on cat 3, cat 5, and cat 6 for so many turns per inch, so that if you’re using the cable at 50 to 70 meters (METERS) and you break pairs … transmit + on orange, and transmit – on say blue … you’re not going to get the benefit of the turns per inch, that keep the signal more pure over the run length … thus more likely to drop bits & packets, as well as be limited in maximum sync’d speed.

    @Bryan Stinchfield — some devices are “forgiving” … however have a customer find out that you made the cable wrong, and their older cisco hardware won’t duplex faster than 10 meg *because of* your crappy cable (ie won’t carry 100 Meg Full Duplex) and I’ll let *you* be the one that pays for improperly wiring their 30 foot cross connect and refunding them several months of service for failure to meet an SLA.

    @ALL / Gig E – doing it right the first time isn’t just for simplicity or uniformity, there are other issues at hand. Gig E will have greater problems as the distance grows with incorrect pairs and that’s if it does Gig E at all, as well as some GigE will not function without *all* 4 pairs / 8 wires … where as you can generally get away with splitting 1 4 pair cable into two ethernet lines (orange / green & blue / brown as two ethernet cables in one)

    @ All / Cat 6 cable heads – there are some slight differences, one of the things that makes Cat6 different is the line seperation, as well as twists per inch (signal crosstalk). The spec calls to limit the amount of Near End Cross Talk, and Return Loss, if you’re use to making regular Ethernet cables, often you might pull on the 4 pairs of cable to give more space to untwist the wires, when you let the cable retreat back into the outer sheth, you’ve *un twisted* enough cable that might cause problems. Again as you get into higher speeds, these things can become more tempermental. Its also why Ideal’s cat 6 plugs come with a seperate Sled & Liner rather than it all being built into the head on regular rj45.

    @ All / RJ 45R heads …. note too that there are still some places that don’t know the difference between RJ45R and nonR heads.. R is for “Round” as in the cable is rounded. There are flat 4 pair cables designed to reduce the height used, and for around some turns/corners. Using a Round Cat5 cable with an RJ45 designed for *flat* cable can be done, its just much harder to get the line properly inserted to the head often the outer sheath will not crimp, or the cable will be weak from crimping all too tightly.

  47. AbbaDabba

    Why does it make a difference what order the wires are in as long as they’re the same on both ends? Wouldn’t Ow O, Bw B, Gw G and Bw B work? Why Ow O, Gw B, Bw G, Bw B??

  48. Brodiemac

    You can use a crossover cable to connect two computers together but I don’t recommend it. It will not run in duplex mode which means data can only flow in one direction at a time. As a temporary solution to transfer some files it may be fine (but very time consuming). As a permanent solution, don’t do it. Invest in a router.

    I used to do this as a side income on eBay years ago. I had come across copious amounts of castoff cable from a company that was heading to the landfill (about 500lbs of it). I offered custom cut cables at $.5 – $.10 a foot. I actually sold out but it did take me a few years. I would make them as I watched TV at night.

  49. Neo

    @Topper

    Isn’t exactly wrong. Depends you are using from Switch to Hub. or Hub to PC. or PC to Switch. =D

  50. Neo

    @AbbaDabba

    So that there’s a protocol and when problem arises, technicians can follow the default coding to check.

  51. Ron

    I checked my store bought cables and found they are manufactured using the 568B method.
    Several years ago I was a fill-in maintaince man in a factory. To make the story short. While wiring a new break room, I installed light switches and receptacles using white as hot and black as neutral. No problem until a certified electrician got bit when he grabbed a white wire.

    For this reason I tried to find out correct wire configuration for RJ45 connectors. To find out there really is none from the site below.

    I think we should all adopt the 568B method to prevent errors when replacing a cable end.

    http://www.alatec.com/info/other.html

    568A is used for a lot of ethernet cables. It is one of the two most widely used standards. If you wire both ends of your cable using 568A, you’ll have a straight-through cable usable for most ethernet applications. Wiring a cable with 568A on one end and 568B on the other will result in a Cross-over cable for connecting two hubs together, or two computers together.

    568B is the most widely used standard for ethernet cables. If you wire both ends of your cable using 568B, you’ll have a straight-through cable usable for most ethernet applications. Wiring a cable with 568A on one end and 568B on the other will result in a Cross-over cable for connecting two hubs together, or two computers together.

    USOC RJ45 standard is not as widely used, but is an acceptable standard for wiring ethernet. It uses the two center pins for pair one, with subsequent pairs placed to the outsides of each previous pair. Usually used for straight through cables.

  52. Ron

    @Ron

    USOC is not an acceptable wiring standard for Ethernet as pins 1 and 2 would be split between pairs. See my previous post for why. This is the reason I don’t call 8 postition- 8 contact mod plug or jacks as RJ45. USOC stands for universal service order code which is what Ma Bell used to call specific types of service. Examples are RJ(registered jack) 11 is a single phone line appearing on the center two pins of a six position jack. RJ14 adds a second phone service pins 2 and 5 of the six position. RJ31X is a jack with shorting pins so if you plug an alarm system you will not interfer with alarm notifications if you pick up your phone. (The purpose of the jack is you can disconnect the alarm so you can use your phone in an emergency no matter what the alarm guy says.)

    Like TG2 said, use only 2 pair for a connection gigabit Ethernet will not work and Power over Ethernet (ieee 802.3af) will not work either. Sure, you can get Ethernet to work on barbed wire but it doesn’t make it right. Following the standards, they ARE there for a reason.

  53. The Unspoken

    @Ron

    If you get your N+(if you already have it no offense is meant) they are going to ask you what standard is used to make a straight through cable? The answer is 568B.

  54. Bryan Stinchfield

    @TG2 … umm, i think i was pretty clear in stating that if you are not doing highly sesitive things it doesnt matter. To clarify again, dont use ancolor you want if setting up a secure network for a business or professional application. For 99% of home uses it will not matter … in a business, professionally wiring the cables, of course, stick to standards …

    @AbbaDabba – yes, it would definitely work!!

    People who know too much about networking and are network technicians will absolutely balk at what I said, as you can see from the other posts – but all in all the colors do not matter when you are simply making a cable or doing what you need to do as long as pin1 goes to pin one!!!

    I do agree that in a business environment you want to stick with the standards, but gee, lighten up a bit and let loose your geeky, nerdy guards and admit it DOESN”T matter unless you’re sticking with the standards and may need someone else to come work on your stuff!even a cisco router doesn’t know if the ow cable is really ow or if it is bw .. it just goes from pin to pin! GEEEEEZZZ!

    It just doesn’t matter when you are only referring to whether or not the cable will work!

  55. Mike J

    What difference, if any, does SHIELDED cat 5e/6 make to the connection?

  56. Bill B

    @ridefst the shortest cable is not a cross over cable it is a roll over cable a cross over cable is the A standard on one end and the B standard on the other.

    Also you can’t use just any old RJ45 end with any cable. If the pre-made cable that you bought was made with stranded wire you have to buy specific RJ45′s for that type of cable as most of the RJ45′s that you will find in your local computer store are designed for solid copper wire.

  57. stg5708

    I like knowing how to do this but I have solved the issue of big $$$$ for cables. I always check my local thrift shops. You’d be surprised what people get rid of these days.

  58. Jon aka DrShockerMc

    I have a brand new House days away from Being finished , I wired each and every room with Multiple runs of Cat 6 B UTP, Solid, In-Wall Rated, 550MHz, 24AWG from Monoprice … i tried to use the monoprice Cat6 Plug Solid W/Insert .. but it was seriously a pain in the butt .. i think i got a bunk batch and now there lots of neg reviews on those … then i moved to Platinum Tools 100011C EZ-RJ45 Cat 6+ Combo .. Plugs and strain relief .. it was 1000% easier .. the wires pull right through the other end and make it impossible to mess up .. along with the Platinum Tools 15015 Cat 5 Cable Jacket Stripper and the Platinum Tools EZ-RJPRO HD Crimp Tool (not only does it crimp them it cuts the excess off as you are crimping)

    Anyway my election did Spec A for all the Keystone jacks so after i terminated all the end i went back and re did the entire house in Spec B because that what 99% of the normal world uses

    oh and i learned old fashion punch down jacks are waaaaaay less annoying then the tool less kind , at least from Mono price .. Hope this rant helps someone .. as this post came at the perfect time because i just finished a 1/2 hr ago

    Thanks

  59. Jon aka DrShockerMc

    “Anyway my election” .. lol … My Electrician .

  60. Dom

    Thanks for this. I’m in Korea and this was a lifesaver!

  61. William Maxey

    Easier yet, just cut the cable in half and splice in the length you want and bingo. Cheap.

  62. Ms.bfv

    thanks its soooo hellpfull

  63. bapster

    A crossover cable is straight wired (568A or 568B) on one end, and cross wires 1 to 3 and 2 to 6 (Trans & Rec) on the other end.

    That is all you have to know to make a cross-over cable.

  64. David

    The short cable is neither a straight through or crossover cable. It is a rolled cable where every single pin is wired to its reverse. They’re used in cisco serial console cables.

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