Slashdot Mirror


1.4mm Thick Gigabit Ethernet Cable

TheIonix writes "Flat network cables aren't anything new, but I'm pretty sure ones like this are. Japanese accessory king Elecom today announced the "LD-VAPF/SV05" network cabling, coming in at 1.4mm thick." Also here's their press release if you can read Japanese.

26 of 235 comments (clear)

  1. Flatwire by Jjeff1 · · Score: 5, Interesting

    I'm not sure if it's out yet or not, but Flatwire has talked about this at least a year ago.

    1. Re:Flatwire by megaversal · · Score: 5, Informative

      Last year (during summer) when I was in Japan, I bought a bunch of Elecom cables (CAT6 though, but the same thin design). They also sold CAT5 (10/100) cable at the same store I got my CAT6, so I'm assuming the real "news" is that they now have gigabit-capable CAT5 cable in the thin variety, not that flat cable is something new, or that even gigabit varieties of flat cable are new.

      --
      Sig!
  2. Translated Page by bigtallmofo · · Score: 5, Informative

    Google Translation of press release.

    --
    I'm a big tall mofo.
    1. Re:Translated Page by wcrowe · · Score: 3, Funny

      "All your 1000Base-T are belong to us."

      --
      Proverbs 21:19
  3. Useful by DarkSarin · · Score: 5, Interesting

    If the pics are accurate, and you can really shut the window (sorry I don't read Japanese), then this is some cool stuff. I can see it being used to hide cabling and make it less obtrusive.

    Other than that, they had better be selling it for close to normal cable prices, or I can't think of anyone who would buy very much of it.

    --
    "We don't know what we are doing, but we are doing it very carefully,..." Wherry, R.J. Personnel Psychology (1995)
  4. All fine and good by PDA_Boy · · Score: 5, Funny

    But surely a large file will not fit through such a small cable? You'd need to hammer them down first, which is an unwanted chore. Easier than making them small enough to transmit wirelessly, I guess.

    1. Re:All fine and good by slimak · · Score: 3, Funny

      its pretty easy to just keep ziping the files over and over until the result gets small enough -- even for large files (CD image or something) 5 times is generally enough for my needs.

    2. Re:All fine and good by dances+with+elks · · Score: 5, Funny

      the ones should be ok, they're quite thin but I'm just not sure about the zeros

      --
      Will wash cars for karma
    3. Re:All fine and good by corngrower · · Score: 4, Funny

      Just thread the wire through the zeros and slide them along the outside of the wire. They can't fall off. That's what I've been doing for some time now.

  5. The most important problem... by Jimpqfly · · Score: 3, Insightful

    ... is not thickness, it's the cable ITSELF I think... I'd rather see some important research on WIFI than this kind of invention...

  6. Re:Shielding? by gl4ss · · Score: 4, Interesting

    the whole point of making such announcement would be that you would have solved that shielding problem.

    the real novelty of this thing(if you watch the pics) is that you can run it through thin places(like windowstills.. no need to bore a hole to the wall).

    --
    world was created 5 seconds before this post as it is.
  7. Translation of press release by sczimme · · Score: 5, Funny


    "We are disrespectful to cable of girth. Can you see that we are serious? Join me or die. Can you do any less? For special lucky data, use Elecom LD-VAPF/SV05 network cabling."

    --
    I want to drag this out as long as possible. Bring me my protractor.
  8. Re:Optical Fiber by Minupla · · Score: 4, Informative

    It's interesting because fiber is pretty damned sensitive to things like going around corners and being run over with office chairs and a whole lot of other things can make it a challenge to deploy to the desktop. That's why gig over cat 5e is way more popular these days then over fibre. Outside of the machine room fibre isn't a popular solution. And definatly if you're going to run it around window tracks or under carpet with roller chairs, you don't want to use fib...

    Min

    --
    On the whole, I find that I prefer Slashdot posts to twitter ones because I don't get limited to 140 chars before
  9. UTP doesn't have shielding! by PornMaster · · Score: 5, Informative

    The U in UTP is Unshielded. Standard Ethernet doesn't use shielding. But it does use the twists in the cabling to combat interference.

    It looks like this flat cable is only for very small sections, for which you can probably get away without the twists if you've got another way to handle the interference.

    1. Re:UTP doesn't have shielding! by aaronl · · Score: 4, Informative

      It's not just to combat interference. The twists are done in such a way to also limit crosstalk, and use the reflections in the pairs to speed up data flow, limit the effect of external interferance, and allowing higher line bandwidth and better SNRs. Shielding might even mess this up by reflecting signal back into the strands.

    2. Re:UTP doesn't have shielding! by anethema · · Score: 4, Informative

      The reason the twists are done, is because on the Rx end of the cable, each pair goes into a differential amplifier. This amplifies the difference in voltages on the two lines. Any noise/crosstalk/etc common to the two lines doesnt get amplified. It actually gets nulled out by the Common Mode Rejection Ratio(CMRR) of the amp (60db or more usually).

      So, when you twist the wires together, you are ensuring that any noise that hits the wire, his both wires, in phase. This allows for very long runs. MANY techs work in this way. Nearly all serial techs, altough, some are implemented better than others.

      I have no idea what you're talking about with the 'reflections in the pairs speeding up data flow'. AFAIK that makes no sense at all. You never want reflections in a transmission line.

      --


      It's easier to fight for one's principles than to live up to them.
  10. Re:Shielding? by Broiler · · Score: 4, Insightful

    OK first off what is an Ethernet cable? You can not buy one at a store. You can buy a CAT5, CAT5E, CAT6...cable at nay computer store.
    Second twisted pair UTP)is not shielded. http://searchnetworking.techtarget.com/sDefinition /0,,sid7_gci213234,00.html/

    --
    My sigs offend the max # of people all over the world, regardless of race, religion, color, sex or creed. It's a gift.
  11. Wow! by RicochetRita · · Score: 4, Funny
    Now I'll be able to cram even more cables between rack'd components! Oh happy day!

    R3

    --
    Stuff that matters: circuitbreakers, vacuum-cleaners coffee makers, calculators generators, matching salt+pepper shakers
  12. Has existed for some time in TV applications by elgatozorbas · · Score: 3, Insightful
    Probably the purpose of this cable is to pass SHORT narrow sections, like the window shown. This also exists for TV applications e.g. to bring your satellite signal (dish on the roof) inside.

    I do not read Japanese, but can imagine

    1) this cable is rather expensive
    2) the loses/reflections are higher than for normal cable

    This is speculation, of course, but probably you don't want to make your entire home network from these cables...

  13. Re:Shielding? by afidel · · Score: 4, Insightful

    Well, if you are going to use STP you need to be using equipment designed for it. Equipment designed for STP needs to have a good ground plane and needs to bring that plane out to each port. Between the grounding of the jacket and the twisted pair STP cabling should not be worse performing that UTP, and in some environments is MUCH better. Of course in any invironment with enough RF noise to warrant STP I would just use fibre and not have to worry about the RF at all =)

    --
    There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
  14. Re: Coolness... by OldeTimeGeek · · Score: 3, Funny
    You won't have to worry about the dust. You can't use this anyway.

    The National Electrical Code requires that wiring in a plenum has a special teflon cladding that won't burn and fill the ducts with smoke in the case of a fire. I didn't see this mentioned in the article...

  15. Re:Wait a minute... by Enigma_Man · · Score: 3, Informative

    The twistedness actually is there to cancel out crosstalk. There isn't really any shielding for RF (either receiving or sending). The twistedness attempts to create pairs of wires that always appear to be 90 degrees in reference to the other wire. Any PCB designer knows that to get the least interference from lines, you try to cross them at 90 degrees, so they only "overlap" at a very small point. Parallel lines act like capacitors to eachother, and that's why we get crosstalk.

    -Jesse

    --
    Nothing says "unprofessional job" like wrinkles in your duct tape.
  16. Re:Glass is thiner. by Anonymous Coward · · Score: 3, Insightful
    I use fiber optic gigabit. Its far thiner then the stuff they're talking about.

    We are so proud of you. Now go roll over your fiber optic cable with a chair. Now bend it around corners. What? It doesn't work anymore?

  17. Re:Shielding? by InfiniteWisdom · · Score: 3, Insightful

    OK first off what is an Ethernet cable? You can not buy one at a store.

    A google search for "ethernet cable" finds 682,000 pages that disagree with you.

    By your argument, I guess you can't buy a car either... you can only buy a Honda Civic EX 1.5 5-sp Manual, Toyota Corolla CE 4-sp Auto etc.

  18. Re: Coolness... by Leebert · · Score: 3, Interesting

    The National Electrical Code requires that wiring in a plenum has a special teflon cladding that won't burn

    PVC itself is fairly fire retardant, but it releases Hydrogen Chloride when heat is applied to it. Plenum rated cable burns, but it doesn't release HCl when it does so, and thus is required to be used in environments where air will be circulated.

  19. Where you can get these cables by Shinzaburo · · Score: 3, Informative

    Just in case you are wondering where you can get these cables, they should be available for pre-order from our site within 24 hours:

    http://shinza.com/

    Availability is expected within 3-4 weeks.