# Ex controller schematics **URL:** \ **Category:** General Chat\ **Created:** [January 1, 2025, 5:52am UTC](https://forum.avidcnc.com/t/ex-controller-schematics/4164 "2025-01-01T05:52:47Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Eric](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/eric/32/3220_2.png) [@Eric](https://forum.avidcnc.com/u/Eric)\ **Post date:** [January 2, 2025, 1:59am UTC](https://forum.avidcnc.com/t/ex-controller-schematics/4164/4 "2025-01-02T01:59:04Z")
> [@greenleaf](#): > > - How Are the 8 inputs used? Is it something like 5 for the limit switches, 1 for the tool setter, and 1 for air pressure sensor? Does that mean there is an unused one, or does the setter use 2 inputs? | Input1 | NC | Estop | | --- | --- | --- | | Input2 | NO | XYZ Prox | | Input3 | NO | Y2 Prox | | Input4 | NO | Mobile Touch Plate | | Input5 | NC | Fixed Touch Plate | | Input6 | NC | Spindle Fault | | Input7 | NO | Air Pressure | | Input7 | NO | Plasma Float | | Input8 | NC | Touch Probe | > [@greenleaf](#): > > What is the pinout for the cable with the tool setter? I was thinking of comparing my existing one to the one that came with the ex controller, but hadn’t yet reverse engineered the cable. [https://www.avidcnc.com/support/instructions/electronics/pnp/manual/20.1/schematics/#common-connector-pinouts](https://www.avidcnc.com/support/instructions/electronics/pnp/manual/20.1/schematics/#common-connector-pinouts) The tool height setter is wired NC > [@greenleaf](#): > > What are the pinouts for the aux 3 and 4 ports? I have opt’s xt-50 laser and imagine it can be hooked up through them, but haven’t really investigated that yet either. Wiring for the laser is the same as it was on Mach systems, so you can use this guide: [https://www.avidcnc.com/support/instructions/laser/technical/23.1/schematics/](https://www.avidcnc.com/support/instructions/laser/technical/23.1/schematics/) --- _[View the full topic](https://forum.avidcnc.com/t/ex-controller-schematics/4164)._