HITBOX HBC65 – CNC interface pinout / signal specs?

 I'm integrating a HITBOX HBC65 plasma cutter with LinuxCNC/QtPlasmaC via its CNC interface (AEC ready signal). Looking for documentation or first-hand experience on:

• Pinout of the CNC interface connectors
• Signal type/level of the AEC-ready (Arc-OK) output — is it a dry relay contact, open-collector, or a voltage-level signal? What voltage/current rating?
• Whether the arc-voltage-divider output is already isolated/scaled, and what the scale factor is (V per V, e.g. 1:50)
• Torch-start/pilot-arc control input requirements (voltage, active-high/low)

Manufacturer documentation seems sparse — has anyone reverse-engineered or received datasheets for this specific interface? Happy to share results back once I get it running.