LAOS Laser

Hey,

Anyone reading these forums? :)

I've just taken delivery of my new K40-III laser cutter, and first checks show it working, so thats a good start. :)

The X, Y and limit connections look identical to the HPC3020, but the laser/power connection is different.

So, looking at the documentation (very thankful for Google translate of Chinese pdfs!), the connection is a 6 pin one, with:

1. GND (Not connected)
2. Laser
3. 5V
4. 5V (Not connected)
5. 24V
6. GND

Any pointers to how to connect this up to the LAOS board? Obviously, GND, 5V, and 24V would go to the power adaptor J5, but what about the Laser connection? The full text that Google translates is:

The laser outputs a control signal. Low open laser. Laser on and off in the high Ability to drive (optocoupler):

Also, can anyone explain what the Laser On, Laser enable, Exhaust enable, and Laser PWM connections are for?

So, do I connect the Laser line from my machine to one pin of Laser on, and tie the other to ground? Or can I do it to the Laser PWM connection? Also, do I need to short out Laser Enable (or better still, install a sensor on the lid so the laser cannot operate when open)? Can I connect the exhaust fan up to exhaust enable to allow the board to turn it on and off when necessary at a later date?

Many thanks,

Darren.