6040Z controller

[ZASto]

You have already pins for limit switches on DB-25 connector:
XLimit - pin11
YLimit - pin12
ZLimit - pin13

For probe, just solder a barrel connector to the board. Central pin is the probe input and it IS connected to the rest of electronics.

[RichardR]

Thank you Jazzcnc and ZASto I did see the marking that Dodgy did, and I have the probe wiring sorted, I could not work out what size barrel connected to get, so I got wired the pads and brought the wires out to a connected strip on the back of the control box.
With Doddys help we have confirmed the board is working and the limit switches work, unfortunately the switches activate the BOB at regular intervals, due to noise interference, again with Doddy's help we are sorting that out, then the next step will be setting up the home switches, followed by the soft limits then machine coordinates, but I am getting ahead of myself.Thank you all