Hi Andre
many thanks.
I have below the cable pinouts for all Cables that were made. The one I need is the BCC02 Mono cable.
If read the pinout correctly I only need to use Pin 4,5,6,7,8,12,14,15
Your right on the power as Pin 7,8 are +12v as it seems to provide +12 on both pins for the Monochrome version whilst pins 5,6 are the grounds with pin 5 is only for the monochrome version and pin 6 is ground for the keyboard.
I am planning on using this as a prototype tool and then create a real cable but my soldering skills on a cable pinouts are horrible. I find they are the worst to try and solder correctly.
This is from the official Rainbow manual that the second image references.
I have also attached a link to the Technical Manual which i am sure I’ll need along the way once the cable is created.
best regards
joe