RJ Motor Connectors


They are sold individually and include the PCB with the connector soldered onto it and 4 male pin headers you can plug your motor into.



I have made RJ11 and RJ45 PCBs that will make life easier when using those types of cables with OnStep.  You use standard cables.  You do not need to make custom cables.

The RJ45 modules make it super easy to use CAT5/6 ethernet cable to connect your OnStep computer to your 4 wire stepper motors.  These PCBs combine the 8pin ethernet to the 4pin stepper motor wires just like the standard conversion on the OnStep PCBs.  There are 4 mounting holes in the PCB so you can attach them to your OnStep project box with screws.

The RJ11 modules are the same concept just using 4 wire RJ11 cables.  This are used for the 3rd and 4th motor axis on the OnStep PCBs.  Mainly used for Rotator or Focuser motors.


Additional information

Weight .02 lbs
Dimensions 1 × 1 × 1 in

RJ11, RJ45


There are no reviews yet.

Be the first to review “RJ Motor Connectors”

Your email address will not be published. Required fields are marked *