I have the C10 and C33 BOB’s. The PC parallel cable is connected to the C33 and from the C33 I connect to the C10 with another parallel cable.
On the C10 I only have connected the 4 stepper motors and they all work fine. There is nothing connected on the pins 1, 14, 16, 17 on this board
On the C33 I have connected all Limits / Estop and they all work fine. There are no other signal pins on the C33.
On the C33 there is also the 5VDC / Enable connections which is working since the green LED is lit..
And then on the C33 there are three 120VAC connections (each connection has 3 pins for N, L, GND). One is to supply 120VAC to the board, the other is to supply 120VAC for Coolant or Vacuum which is empty because I don’t use it and the last is to supply 120VAC to the router.
When I asked the vendor how Mach3 knows that the router / coolant 120VAC outlets needs to be energized, I was told that’s done internally to the C33
So where is the wired backwards?