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    1-Wire UTP cable color mapping

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    • A
      arolli last edited by

      Hi all,
      this afternoon I will cable my 1-wire temperature sensor network connecting to 1-wire hub.
      I'm referring to this tutorial to prepare the connection to UTP cables. https://www.unipi.technology/tutorial/topology-of-1-wire-network-46

      What is not clear is the sequence of utp calbe color to use.
      UTP cables have 4 twisted pair: orange/white-orange green/white-green blu/white-blu brown/white brown.
      Do I need to use a particular color sequence to crimp the cable to RJ45 connector?

      Let me know
      Thanks
      Antonio

      Martin Kudláček 1 Reply Last reply Reply Quote 0
      • Martin Kudláček
        Martin Kudláček @arolli last edited by

        Hello @arolli,
        if you are using UTP cable between Neuron/Axon and the 1-Wire hub, then it is safe to stick to the original network cable pinout (TIA-568B) on both sides:

        0_1539168443501_e59e1f0f-b30d-4c81-b512-f1b7a3df4fd6-image.png

        Best regards
        Martin

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        • A
          arolli last edited by

          Hi Martin,
          I followed your indication and all my 5 thermostat are working fine.
          I use autodetect and they are mapped as "1W-UniversalAi.1"
          I'm able to see the temperature of all of them.
          I've another question:
          the devices I connected are "SEDtronic 1-Wire sensor variant: U1WTVS", they should measure the humidity too and .
          How to read the humidity values?
          Seem value VAD and VDD are connected to humidity and intensity of light, but need help to understand how to use them.
          thank
          Antonio

          T 1 Reply Last reply Reply Quote 0
          • T
            tomas_hora administrators @arolli last edited by

            Hello @arolli,

            you'll need to use the Unica U1WT function for each sensor. It's a part of the Lib.UniPi which has to be added among the other references in the solution in Executable projects.

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            • A
              arolli last edited by

              Hi Martin,
              in my 1wire bus I've 3 HUB and several sensons. Everything is working fine.
              Only problem appear when on the last port on my last hub I connected a rj45 splitter
              ( https://www.unipi.technology/1wire-hub-2-port-p50 ).
              After a while I connect the thermometer to this hub it disconnect. (it appears red in mervis)
              All RJ45 port are cabled whit pinout TIA-568B and thermometer are cabled as follow:

              +VCC: blu + blu/white
              GND: brown + green/white
              1W : green + brown/white.

              Do I need to use the same schema of connection on the thermometer atteched to 2 port splitter?
              let me know if you have suggestion how to troubleshoot the problem.
              Thanks
              Antonio

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