CNC ROUTER to CNC ROUTER AND PLASMA

Hello, I am trying to add a plasma torch to my CNC but I am having difficulty getting the output signals to reliably fire both the Anti dive and torch via an external relay connected to the output ports. I cannot find documentation on which ports use which pins so I can configure in the output config in mach3.
I am using the CNC Mach3 motion control card-MKX-IV found at http://www.cdxhctech.com/html/eProdu...w_135_337.html and with this card would be possible to use some of the spare axis outputs to fire the relays instead? It has six and I am using three.
Can someone please recommend a solution on the best way to approach it thank you.

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