Reliability

  1. Cat5 unshielded twisted pair
  2. Outdoor rated UV stable CMX
  3. RC filter for short to medium networks with weights up to 200m.
  4. Diode for long runs

    "If you want to add the 1N5817 diode, bend it in half and solder the side with the stripe to pin 2 and the other side to pin 1 of the DS18S20"

Guidelines for reliable 1-Wire Networks