Depends on how neat you are ? The DZ-1000s are a bit more complicated that the DZ-2500Cs.
Each machine needs a power(red) and ground(black) lead, you can wire to the Z-4000. I wire mine to a separate power source. If you are using track to activate the non-derailing all transformers must be phased.
I run the two wires beneath the layout that I can tap power and ground to the switch machines. That leaves the control wire; each machine must be separately wired back to your switch machine controller anyway. So there those who just use 3 conductor phone cable to wire all three wires to power/ground and to the controller.
