All you need is 3 wires - +v, Gnd, and Data. unshielded cat5 cable along with RJ45 or RJ11 connectors.
1-wire devices are "plugged" into the 1-wire bus.
To build my 1-wire system, I obtained some cat5 wall modules, and a couple of modular faceplates.
The cat 5 cable is just punched into the back of each module in turn so all the pin 1s are connected together etc.
my sensors are connected up as follows
Sensor to Cat 5 (tia568b)
pin 1 +v to Pin 2 Orange
pin 2 gnd to Pin 4 Blue
pin 3 data to Pin 3 White/Green
A couple of the sensors are soldered to the end of cat5 fly leads, but most have been fitted into RJ45 plugs, some are shown below along with a naked DS1820 1-wire temperature sensor
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