I recently bought a Camarc spool gun and control box of ebay have got the spoolgun to work of my inveter mig as it has a 24v dc ouput controled from the inverter for separate wire feed unit so same wiring for spool gun as it is 24vdc and no need for control box however would like to have the control box conected to my Murex 305 in my workshop does any one know the pin outs for the camarc control box it has a 7 pin amphenol plug on the back for conecting to control cable there is no serial number or model number on the box.