Never expected this to work

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  • joshnz
    Badcaps Veteran
    • Feb 2011
    • 969
    • New Zealand

    #1

    Never expected this to work

    Gigabit ethernet through 108 meters of sheilded cat 5e. was expecting at most tbase 100.
    My pc
    CPU : AMD PHENOM II x4 @ 3.5Ghz
    MB : ASUS M4A89TD PRO USB3
    RAM : Kingston ValueRAM 16gb DDR3
    PSU : Cooler Master 850W Silent Pro
    GPU : ATI Radeon HD 6850
  • mariushm
    Badcaps Legend
    • May 2011
    • 3799

    #2
    Re: Never expected this to work

    With good network cards on both ends (or good switch), it's possible.

    Years ago, I installed a FTP cat5e cable between two buildings and I know for sure it was more than 105 meters, I think it was in the range of 107-110 meters. It was working fine with no packet loss and transfers around 600-800 mbps 24/7 (students in university campus sharing movies and music between them)

    Comment

    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31015
      • Albion

      #3
      Re: Never expected this to work

      got any packetloss?

      Comment

      • Uranium-235
        Comrade Glimmer
        • Aug 2007
        • 5042
        • US

        #4
        Re: Never expected this to work

        I think 100M is 'safe' not strict
        Cap Datasheet Depot: http://www.paullinebarger.net/DS/
        ^If you have datasheets not listed PM me

        Comment

        • SteveNielsen
          Retired Tech
          • Jun 2012
          • 2327
          • USA

          #5
          Re: Never expected this to work

          Originally posted by mariushm
          With good network cards on both ends (or good switch), it's possible.

          Years ago, I installed a FTP cat5e cable between two buildings and I know for sure it was more than 105 meters, I think it was in the range of 107-110 meters. It was working fine with no packet loss and transfers around 600-800 mbps 24/7 (students in university campus sharing movies and music between them)
          Try making 10base2 (thin ethernet coax) work over 1000'. Lots of packet loss but it did work and that was on a repeated (not switched) network with about 300 nodes. Things are only impossible until they are tried.

          Comment

          • DarkInferno
            Member
            • Feb 2015
            • 23
            • United Kingdom

            #6
            Re: Never expected this to work

            I was certifying the structured cabling at a collage a few years back and from one of the art studio pc labs that every point was over 200m with UTP... It did 'work' but the switch wasn't happy about it. Nor were they when we pointed out it at least needed re-routing to a nearer cab, taking a more sensible route, and hoping it came into spec, or possibly installing a small cab in the lab.

            Comment

            • joshnz
              Badcaps Veteran
              • Feb 2011
              • 969
              • New Zealand

              #7
              Re: Never expected this to work

              Ok from what I understand cat 5e is good for gigabit to 100 meters
              Last edited by joshnz; 05-04-2015, 06:52 AM.
              My pc
              CPU : AMD PHENOM II x4 @ 3.5Ghz
              MB : ASUS M4A89TD PRO USB3
              RAM : Kingston ValueRAM 16gb DDR3
              PSU : Cooler Master 850W Silent Pro
              GPU : ATI Radeon HD 6850

              Comment

              • mariushm
                Badcaps Legend
                • May 2011
                • 3799

                #8
                Re: Never expected this to work

                The maximum length allowed by standards is 105 meters. Wikipedia says 100 meters but I know I remember it as 105 meters.

                There is some note in the standard ( ) saying something about 5 meters not included for patch cords and internal cabling but I'm not curious and patient enough to read the whole damn thing.

                Comment

                • Per Hansson
                  Super Moderator
                  • Jul 2005
                  • 5895
                  • Sweden

                  #9
                  Re: Never expected this to work

                  Originally posted by joshnz
                  Gigabit ethernet through 108 meters of sheilded cat 5e. was expecting at most tbase 100.
                  Cat5e is rated for 1Gbps at up to 100 meters including patch cables on both ends.
                  So if you don't have patch cables it will improve the signal.
                  And you say that you used shielded cables, which further improves things.

                  http://en.wikipedia.org/wiki/Categor...egory_5_vs._5e
                  "The one who says it cannot be done should never interrupt the one who is doing it."

                  Comment

                  • joshnz
                    Badcaps Veteran
                    • Feb 2011
                    • 969
                    • New Zealand

                    #10
                    Re: Never expected this to work

                    Doesn't sound as impresive now only 3 meters over length.

                    For some reason I had in my mind 30m for cat 5
                    aNd needed cat 6 for gigabit at 30m +

                    I think I was confusing cat 5e specs with cat 5.

                    Not looked it up.

                    Also this is a poe cable.
                    My pc
                    CPU : AMD PHENOM II x4 @ 3.5Ghz
                    MB : ASUS M4A89TD PRO USB3
                    RAM : Kingston ValueRAM 16gb DDR3
                    PSU : Cooler Master 850W Silent Pro
                    GPU : ATI Radeon HD 6850

                    Comment

                    • stj
                      Great Sage 齊天大聖
                      • Dec 2009
                      • 31015
                      • Albion

                      #11
                      Re: Never expected this to work

                      spec's dont mean much when they keep improving the line-driver in the chipsets.

                      Comment

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