Mesa 7i96s torch on/off connection

I am building a CNC plasma table and I am going to use QtplasmaC. I am trying to find out the correct pin out for Torch on/off and Arc OK. I am using the Mesa 7i96S board with a THCAD - 10. I have attached the wiring diagram I am using but it is for a plasma cutter with external connectors. The plasma cutter I am using is older and does not have any of those. 

 

Doesnt QtplasmaC have the option to read voltage for the arc ok? It reads the voltage from the THCAD - 10 for the THC

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The plasma cutter I am using is older and does not have any of those (external connectors). 

As Tom has indicated you need to open your plasma cutter and wire a voltage divider inside the cutter. I have attached diagram with an example for cutter with 250V, yours might be different you may need to determine the proper resistors values. (Please use high voltage resistors in kilo-volts range).
For Arc OK signal we need to know the make of your cutter or even better a wiring diagram to determine the wiring points if they exist.
 

From my research on the forum I have been able to determine that I can either Set PlasmaC to Mode 0 and set Arc OK Low in the Config Panel to around half the expected arc voltage or use a reed relay on the torch lead. Which will eliminate any need to wire an arc on because the machine belongs to a makerspace I am building a plasma table for. I have not been able to find a pin out for the 7i96s mesa board showing the torch on/ off connection. I am planning on using a relay for the torch. I do have a voltage divider that I will wire up to the machine that was made specifically for a plasma machine. I am sorry for all the questions. I am completely new to mesa cards. Upgrading from GRBL and Arduino.

Here is the manual for the plasma source I am using. I have someone to help me with the wiring of the voltage divider to the plasma machine but nobody for the Mesa board pinout. Someone will help me with the Linuxcnc setup of the mesa board and QtplasmaC.

Could not upload the manuel. Here is the link to it. It is an Everlast Supercut 50 (w/o a pilot arc)

Everlast Supercut 50