Wiring

CAT5? Phone wire?

RJ11 Phone Wire Assignments

Did not find a standard, went with:

• Green, DQ 1-wire data

• Red, dGND 1-wire return

• Yellow, +5v DC

• Black, power ground.

Probably not using Yellow or Black initially since using parasitic power for temp sensors and separate power for the relay board.

DS9490R USB Controller to RJ11

The USB controller has a 6-pin RJ12 (6P6C) socket (right, not RJ45, not usual 6P4C RJ11). Socket description here. With tab slot at top, pins are 6-5-4-3-2-1. A 4-pin RJ11 works for data only since the center pair are red/green, but if you think you want the +5v line which doesn't line up with a RJ11 6P4C. an adapter is needed. I made a cable to connect to 4-pin RJ11: